The BCS-BEC crossover: From ultra-cold Fermi gases to nuclear systems

Abstract

This report adresses topics and questions of common interest in the fields of ultra-cold gases and nuclear physics in the context of the BCS-BEC crossover. The BCS-BEC crossover has recently been realized experimentally, and essentially in all of its aspects, with ultra-cold Fermi gases. This realization, in turn, has raised the interest of the nuclear physics community in the crossover problem, since it represents an unprecedented tool to test fundamental and unanswered questions of nuclear many-body theory. Here, we focus on the several aspects of the BCS-BEC crossover, which are of broad joint interest to both ultra-cold Fermi gases and nuclear matter, and which will likely help to solve in the future some open problems in nuclear physics (concerning, for instance, neutron stars). Similarities and differences occurring in ultra-cold Fermi gases and nuclear matter will then be emphasized, not only about the relative phenomenologies but also about the theoretical approaches to be used in the two contexts. After an introduction to present the key concepts of the BCS-BEC crossover, this report discusses the mean-field treatment of the superfluid phase, both for homogeneous and inhomogeneous systems, as well as for symmetric (spin- or isospin-balanced) and asymmetric (spin- or isospin-imbalanced) matter. Pairing fluctuations in the normal phase are then considered, with their manifestations in thermodynamic and dynamic quantities. The last two Sections provide a more specialized discussion of the BCS-BEC crossover in ultra-cold Fermi gases and nuclear matter, respectively. The separate discussion in the two contexts aims at cross communicating to both communities topics and aspects which, albeit arising in one of the two fields, share a strong common interest.

91 pages, 51 figures

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• BCS-BEC Crossover: From High Temperature Superconductors to Ultracold Superfluids
• Evidence for Superfluidity in a Resonantly Interacting Fermi Gas
• Functional renormalization group approach to correlated fermion systems
• Revealing the Superfluid Lambda Transition in the Universal Thermodynamics of a Unitary Fermi Gas
• Alpha cluster condensation in 12C and 16O
• Physics of Neutron Star Crusts
• Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas
• Inhomogeneous Superconductivity in Condensed Matter and QCD
• Large momentum part of fermions with large scattering length
• Energetics of a strongly correlated Fermi gas
• Weakly bound dimers of fermionic atoms
• Collective excitations of a degenerate gas at the BEC-BCS crossover
• Exploring the Thermodynamics of a Universal Fermi Gas
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• Resonance superfluidity in a quantum degenerate Fermi gas
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• Pairing in nuclear systems: from neutron stars to finite nuclei
• The BCS-BEC Crossover in a Gas of Fermi Atoms with a Feshbach Resonance
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• Interior Gap Superfluidity
• Heat Capacity of a Strongly-Interacting Fermi Gas
• The Equation of State of a Low-Temperature Fermi Gas with Tunable Interactions
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• Thermodynamics of the BCS-BEC crossover
• Universal Quantum Viscosity in a Unitary Fermi Gas
• Pure Gas of Optically Trapped Molecules Created from Fermionic Atoms
• Direct Observation of the Superfluid Phase Transition in Ultracold Fermi Gases
• Phase diagram of a two-component Fermi gas with resonant interactions
• Probing Pair-Correlated Fermionic Atoms through Correlations in Atom Shot Noise
• Measurement of positive and negative scattering lengths in a Fermi gas of atoms
• Momentum sharing in imbalanced Fermi systems
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• Phase separation in asymmetrical fermion superfluids
• Influence of Induced Interactions on the Superfluid Transition in Dilute Fermi Gases
• Asymmetric Two-component Fermion Systems in Strong Coupling
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• Attractive Fermi gases with unequal spin populations in highly elongated traps
• Critical Temperature and Thermodynamics of Attractive Fermions at Unitarity
• Precise characterization of ^6Li Feshbach resonances using trap-sideband resolved RF spectroscopy of weakly bound molecules
• Precision Measurements of Collective Oscillations in the BEC-BCS Crossover
• Observation of a pairing pseudogap in a two-dimensional Fermi gas
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• Renormalization group approach to neutron matter: quasiparticle interactions, superfluid gaps and the equation of state
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• Evolution of Fermion Pairing from Three to Two Dimensions
• Determination of the Superfluid Gap in Atomic Fermi Gases by Quasiparticle Spectroscopy
• On the correct strong-coupling limit in the evolution from BCS superconductivity to Bose-Einstein condensation
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• Universal Properties of the Ultra-Cold Fermi Gas
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• Normal state of highly polarized Fermi gases: Full many-body treatment
• Stability Criteria for Breached Pair Superfluidity
• Quantum Monte Carlo Simulations of the BCS-BEC Crossover at Finite Temperature
• Observation of pair condensation in the quasi-2D BEC-BCS crossover
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• Quantum liquid crystals in imbalanced Fermi gas: fluctuations and fractional vortices in Larkin-Ovchinnikov states
• Pseudogap effects induced by resonant pair scattering
• Resonant Fermi gases with a large effective range
• Probing the excitation spectrum of a Fermi gas in the BCS-BEC crossover regime
• Tomographic RF Spectroscopy of a Trapped Fermi Gas at Unitarity
• Josephson effect in fermionic superfluids across the BEC-BCS crossover
• Critical velocity for superfluid flow across the BEC-BCS crossover
• Non-existence of the Luttinger-Ward functional and misleading convergence of skeleton diagrammatic series for Hubbard-like models
• Generalized Ginzburg-Landau theory for non-uniform FFLO superconductors
• Scale invariance and viscosity of a two-dimensional Fermi gas
• The potential energy of a ${}^{40}$K Fermi gas in the BCS-BEC crossover
• Measurement of the Entropy and Critical Temperature of a Strongly Interacting Fermi Gas
• Concepts of alpha-particle condensation
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• Polarization contributions to the spin-dependence of the effective interaction in neutron matter
• Screening Effects in Superfluid Nuclear and Neutron Matter within Brueckner Theory
• BCS Theory for Trapped Ultracold Fermions
• Shallow pockets and very strong coupling superconductivity in FeSe_xTe_1-x
• BCS-BEC crossover at finite temperature in the broken-symmetry phase
• Auxiliary Field quantum Monte Carlo for Strongly Paired Fermions
• Measurement of the Homogeneous Contact of a Unitary Fermi gas
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• Equation of State of Ultracold Fermions in the 2D BEC-BCS Crossover Region
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• Bound clusters on top of doubly magic nuclei
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• Universal properties of a trapped two-component Fermi gas at unitarity
• Large-N expansion for unitary superfluid Fermi gases
• Phase structure, collective modes, and the axial anomaly in dense QCD
• Virial expansion for a strongly correlated Fermi system and its application to ultracold atomic Fermi gases
• Status of Alpha-Particle Condensate Structure of the Hoyle State
• Negative Coulomb Drag in Double Bilayer Graphene
• Resonantly Interacting Fermions In a Box
• Exact Relations for a Strongly-interacting Fermi Gas near a Feshbach Resonance
• Trapped fermions with density imbalance in the BEC limit
• Formation Time of a Fermion Pair Condensate
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• Particle distribution tail and related energy formula
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• Alpha Decay Width of ${}^{212}$Po from a quartetting wave function approach
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• The Nature of Superfluidity in Ultracold Fermi Gases Near Feshbach Resonances
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• Speckle Imaging of Spin Fluctuations in a Strongly Interacting Fermi Gas
• Transition from BCS pairing to Bose-Einstein condensation in low-density asymmetric nuclear matter
• Sarma Phase in Trapped Unbalanced Fermi Gases
• Inelastic form factors to alpha particle condensate states in 12C and 16O: what can we learn ?
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• Imbalanced Fermi Gases at Unitarity
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• The Vortex State in a Strongly Coupled Dilute Atomic Fermionic Superfluid
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• Polarization Measurements and the Pairing Gap in the Universal Regime
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• An effective theory of Feshbach resonances and many-body properties of Fermi gases
• Effects of density imbalance on the BCS-BEC crossover in semiconductor electron-hole bilayers
• Local Density Approximation for Systems with Pairing Correlations
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• Larkin-Ovchinnikov state in resonant Fermi gas
• Thermodynamics of balanced and slightly spin-imbalanced Fermi gases at unitarity
• Renormalization Group Theory for the Imbalanced Fermi Gas
• Phase Fluctuations and Kosterlitz-Thouless Transition in Two-Dimensional Fulde-Ferrell-Larkin-Ovchinnikov Superconductors
• Quantum Monte Carlo approaches to nuclear and atomic physics
• Shifted-Action Expansion and Applicability of Dressed Diagrammatic Schemes
• Particle-hole fluctuations in the BCS-BEC Crossover
• On the Relationship Between the Pseudo- and Superconducting Gaps: Effects of Residual Pairing Correlations Below Tc
• Low energy Collective Modes of a Superfluid Trapped atomic Fermi Gas
• Onset of a Pseudogap Regime in Ultracold Fermi Gases
• Energy Density Functional Approach to Superfluid Nuclei
• Alpha particle clusters and their condensation in nuclear systems
• Low energy collective excitations in a superfluid trapped Fermi gas
• Shear viscosity of a universal Fermi gas near the superfluid phase transition
• Zero-point energy of ultracold atoms
• BCS-BEC crossover in an asymmetric two-component Fermi gas
• Dynamics of a strongly interacting Fermi gas: the radial quadrupole mode
• The ground state energy at unitarity
• The Josephson effect throughout the BCS-BEC crossover
• Enhanced paraconductivity-like fluctuations in the radio frequency spectra of ultracold Fermi atoms
• Ground state energy of spin-1/2 fermions in the unitary limit
• Collective Modes in a Unitary Fermi Gas across the Superfluid Phase Transition
• Solution of the Bogoliubov-de Gennes equations at zero temperature throughout the BCS-BEC crossover: Josephson and related effects
• Universal contact of strongly interacting fermions at finite temperatures
• Natural and unnatural parity states of small trapped equal-mass two-component Fermi gases at unitarity and fourth-order virial coefficient
• Single-particle excitations in a trapped gas of Fermi atoms in the BCS-BEC crossover region
• Temperature and coupling dependence of the universal contact intensity for an ultracold Fermi gas
• Origins of Mass
• Correlated Fermion Pairs in Nuclei and Ultracold Atomic Gases
• Crossover temperature of Bose-Einstein condensation in an atomic Fermi gas
• Comparative study of strong coupling theories of a trapped Fermi gas at unitarity
• Non-standard pairing in asymmetric trapped Fermi gases
• Lattice Monte Carlo calculations for unitary fermions in a finite box
• Virial expansion with Feynman diagrams
• Dynamic spin response of a strongly interacting Fermi gas
• Cooper pairing above the critical temperature in a unitary Fermi gas
• Anomalous minimum in the shear viscosity of a Fermi gas
• Self-consistent theory for molecular instabilities in a normal degenerate Fermi gas in the BEC-BCS crossover
• Transition to the Fulde-Ferrel-Larkin-Ovchinnikov phases in three dimensions : a quasiclassical investigation at low temperature with Fourier expansion
• Short-range correlations and entropy in ultracold atomic Fermi gases
• Fermi Gases in Slowly Rotating Traps: Superfluid vs Collisional Hydrodynamics
• Critical temperature and Ginzburg-Landau equation for a trapped Fermi gas
• Functional renormalization group approach to the BCS-BEC crossover
• A new field theoretic method for the virial expansion
• Lattice Monte Carlo calculations for unitary fermions in a harmonic trap
• Confinement vs Deconfinement of Cooper Pairs in One-Dimensional Spin-3/2 Fermionic Cold Atoms
• Broad versus narrow Fano-Feshbach resonances in the BCS-BEC crossover with trapped Fermi atom
• Microscopic Structure of a Vortex Line in a Superfluid Fermi Gas
• Spin susceptibility and fluctuation corrections in the BCS-BEC crossover regime of an ultracold Fermi gas
• Evolution from BCS superconductivity to Bose-Einstein condensation: Current correlation function in the broken-symmetry phase
• Universality in Phase Transitions for Ultracold Fermionic Atoms
• Thermodynamics of a trapped unitary Fermi gas
• Pairing in neutron matter: New uncertainty estimates and three-body forces
• Hartree-Fock-Bogoliubov theory versus local-density approximation for superfluid trapped fermionic atoms
• Extracting the neutron-neutron scattering length -- recent developments
• Pairing effects in the normal phase of a two-dimensional Fermi gas
• Experimental evaluation of the nuclear neutron-proton contact
• Comparative Study of BCS-BEC Crossover Theories above $T_c$: the Nature of the Pseudogap in Ultra-Cold Atomic Fermi Gases
• Bound states of three and four resonantly interacting particles
• Dispersive effects in neutron matter superfluidity
• BEC-BCS Crossover and the Liquid-Gas Phase Transition in Hot and Dense Nuclear Matter
• Lattice Calculation of Thermal Properties of Low-Density Neutron Matter with Pionless NN Effective Field Theory
• Quantum critical transport in the unitary Fermi gas
• Nuclear pairing from microscopic forces: singlet channels and higher-partial waves
• Shear Viscosity of a Unitary Fermi Gas
• Critical Temperature for $\alpha$-Particle Condensation within a Momentum Projected Mean Field Approach
• Thermodynamics and superfluid density in BCS-BEC crossover with and without population imbalance
• Physics of ultracold Fermi gases revealed by spectroscopies
• Skeleton series and multivaluedness of the self-energy functional in zero space-time dimensions
• Light nuclei in supernova envelopes: a quasiparticle gas model
• Phase structure of spin-imbalanced unitary Fermi gases
• Thermalisation time and specific heat of neutron stars crust
• Nuclear Pairing in the T=0 channel revisited
• Unitary Fermi gas at finite temperature in the epsilon expansion
• The Equation of State of the Unitary Fermi Gas: An Update on Lattice Calculations
• Entanglement between pairing and screening in the Gorkov-Melik-Barkhudarov correction to the critical temperature throughout the BCS-BEC crossover
• Two-fluid hydrodynamic modes in a trapped superfluid gas
• Dispersions, weights, and widths of the single-particle spectral function in the normal phase of a Fermi gas
• Stability conditions and phase diagrams for two component Fermi gases with population imbalance
• Pseudogap temperature and effects of a harmonic trap in the BCS-BEC crossover regime of an ultracold Fermi gas
• Modified Fermi-sphere, pairing gap and critical temperature for the BCS-BEC crossover
• On the Fulde-Ferrell State in Spatially Isotropic Superconductors
• Renormalization of the BCS-BEC crossover by order parameter fluctuations
• Static structure factor of a strongly correlated Fermi gas at large momenta
• The induced interaction in a Fermi gas with a BEC-BCS crossover
• Precritical pair fluctuations and formation of a pseudogap in low-density nuclear matter
• Temperature dependence of the pair coherence and healing lengths for a fermionic superfluid throughout the BCS-BEC crossover
• Determination of the density and temperature dependence of the shear viscosity of a unitary Fermi gas based on hydrodynamic flow
• Numerical solution of the Boltzmann equation for the collective modes of trapped Fermi gases
• Comment on "Collective excitations of a degenerate gas at the BEC-BCS crossover"
• Many Body Approach for Quartet Condensation in Strong Coupling
• Formation of a vortex lattice in a rotating BCS Fermi gas
• On Quartet Superfluidity of Fermionic Atomic Gas
• High-temperature limit of the resonant Fermi gas
• Ultracold atoms at unitarity within quantum Monte Carlo
• Shrinking of a condensed fermionic cloud in a trap approaching the BEC limit
• Relativistic description of BCS-BEC crossover in nuclear matter
• Phase Diagram of a Strongly Interacting Spin-Imbalanced Fermi Gas
• The temperature evolution of the shear viscosity in a unitary Fermi gas
• Temperature dependence of a vortex in a superfluid Fermi gas
• Popov approximation for composite bosons in the BCS-BEC crossover
• Path integral Monte Carlo determination of the fourth-order virial coefficient for unitary two-component Fermi gas with zero-range interactions
• Dynamics of a trapped Fermi gas in the BCS phase
• Dimer-dimer collisions at finite energies in two-component Fermi gases
• Extracting the condensate density from projection experiments with Fermi gases
• Transition to Fulde-Ferrel-Larkin-Ovchinnikov phases near the tricritical point : an analytical study
• BCS-BEC crossovers and unconventional phases in dilute nuclear matter
• Moment of inertia of a trapped superfluid gas of atomic Fermions
• Equation for the superfluid gap obtained by coarse graining the Bogoliubov-de Gennes equations throughout the BCS-BEC crossover
• Comparison between a diagrammatic theory for the BCS-BEC crossover and Quantum Monte Carlo results
• Pair-Breaking in Rotating Fermi Gases
• Critical temperature for $\alpha$-particle condensation in asymmetric nuclear matter
• Critical behaviours of contact near phase transitions
• Two-particle spatial correlations in superfluid nuclei
• High-temperature expansion for interacting fermions
• Local observation of pair-condensation in a Fermi gas at unitarity
• Validating Simple Dynamical Simulations of the Unitary Fermi Gas
• Dynamics of trapped two-component Fermi gas: temperature dependence of the transition from collisionless to collisional regime
• Collective modes of trapped Fermi gases with in-medium interaction
• Non-BCS superfluidity in trapped ultracold Fermi gases
• Collective Modes in a Superfluid Neutron Gas within the Quasiparticle Random-Phase Approximation
• BEC-BCS Crossover in Neutron Matter with Renormalization Group based Effective Interactions
• Predicting Energies of Small Clusters from the Inhomogeneous Unitary Fermi Gas
• Trapped unitary two-component Fermi gases with up to ten particles
• Deuteron-deuteron scattering above four-nucleon breakup threshold
• The Generalized Nuclear Contact and its Application to the Photoabsorption Cross-Section
• Vortex arrays in neutral trapped Fermi gases throughout the BCS-BEC crossover
• Destroying superfluidity by rotating a Fermi gas at unitarity
• Renormalization theory for the Fulde-Ferrell-Larkin-Ovchinnikov states at $T>0$
• Ground-state energy of the unitary Fermi gas from the epsilon expansion
• Polarized Fermi gases at finite temperature in the BCS-BEC crossover
• Role of fourth-order phase-space moments in collective modes of trapped Fermi gases
• Atomic Fermi gas at the unitary limit by quantum Monte Carlo methods: Effects of the interaction range
• Tan contact and universal high momentum behavior of the fermion propagator in the BCS-BEC crossover
• Perfect-fluid behavior of a dilute Fermi gas near unitary
• Numerical solution of the Boltzmann equation for trapped Fermi gases with in-medium effects
• Temperature and finite-size effects in collective modes of superfluid Fermi gases
• Vortex arrays in a rotating superfluid Fermi gas
• Slow rotation of a superfluid trapped Fermi gas
• Size-shrinking of deuterons in very dilute superfluid nuclear matter
• Medium polarization in asymmetric nuclear matter
• Pseudogap phenomenon and effects of population imbalance in the normal state of a unitary Fermi gas
• Cooper pair sizes in 11Li and in superfluid nuclei: a puzzle?
• Two-fluid model for a rotating trapped Fermi gas in the BCS phase
• Coupling of hydrodynamics and quasiparticle motion in collective modes of superfluid trapped Fermi gases
• Universal dimer-dimer scattering in lattice effective field theory
• Radial quadrupole and scissors modes in trapped Fermi gases across the BCS phase transition
• Fermionic Functional Renormalization Group Approach to Superfluid Phase Transition
• Dimer-dimer scattering length for fermions with different masses: analytical study for large mass ratio
• Probing mixed-spin pairing in heavy nuclei
• Medium effects and the shear viscosity of the dilute Fermi gas away from the conformal limit
• Coulomb Correlations and Pseudo-gap Effects in a Pre-formed Pair Model for the Cuprates
• Size shrinking of composite bosons for increasing density in the BCS to Bose-Einstein crossover
• Occupation numbers in strongly polarized Fermi gases and the Luttinger theorem
• Generalized Galitskii approach for the vertex function of a Fermi gas with resonant interaction
• Universality in fermionic dimer-dimer scattering
• Magnetic properties and strong-coupling corrections in an ultracold Fermi gas with population imbalance
• Phase diagram of asymmetric Fermi gas across Feshbach resonance
• Theory for Quartet Condensation in Fermi Systems with Applications to Nuclei and Nuclear Matter

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• QCD-like phase diagram with Efimov trimers and Cooper pairs in resonantly interacting SU(3) Fermi gases
• Quantum Lifshitz points and fluctuation-induced first-order phase transitions in imbalanced Fermi mixtures
• Collective excitations of superfluid Fermi gases near the transition temperature
• Non-Hermitian topological Fermi superfluid near the $p$-wave unitary limit
• Optically trapped Feshbach molecules of fermionic 161Dy and 40K
• Pair correlations in the normal phase of an attractive Fermi gas
• Non-Hermitian BCS-BEC crossover of Dirac fermions
• Spin Susceptibility Above the Superfluid Onset in Ultracold Fermi Gases
• Observation of confinement-induced resonances in a 3D lattice
• Tunable BCS-BEC crossover, reentrant, and hidden quantum phase transitions in two-band superconductors with tunable valence and conduction bands
• Equation of state of superfluid neutron matter with low-momentum interactions
• Evolution of an attractive polarized Fermi gas: From a Fermi liquid of polarons to a non-Fermi liquid at the Fulde-Ferrell-Larkin-Ovchinnikov quantum critical point
• Role of the effective range in the density-induced BEC-BCS crossover
• Nuclear superfluidity at finite temperature
• Tunneling study in granular aluminum near the Mott metal-to-insulator transition
• Coexistence phase of ${}^1{S}_0$ and ${}^3{P}_2$ superfluids in neutron stars
• Theory of strongly paired fermions with arbitrary short-range interactions
• Chiral twodimensional p-wave superfluid from s-wave pairing in the BEC regime
• From odd-even staggering to the pairing gap in neutron matter
• Equation of State of Neutron-Rich Matter in $d$-Dimensions
• Multi-Particle Tunneling Transport at Strongly-Correlated Interfaces
• Thermodynamic stability, compressibility matrix, and effects of mediated interactions in a strongly-interacting Bose-Fermi mixture
• Stability against three-body clustering in one-dimensional spinless p-wave fermions
• Casimir forces and high-Tc superconductors
• Generalized Crossover in Interacting Fermions within the Low-Energy Expansion
• Single-particle versus many-body phase coherence in an interacting Fermi gas
• Collisional dynamics of polaronic clouds immersed in a Fermi sea
• Feshbach hypothesis of high-Tc superconductivity in cuprates
• Single-Particle properties of a strongly-interacting Bose-Fermi mixture with mass and population imbalance
• Effective potential and quantum criticality for imbalanced Fermi mixtures
• Variational and Parquet-diagram theory for strongly correlated normal and superfluid systems
• Fourth- and fifth-order virial expansion of harmonically trapped fermions at unitarity
• Critical point and Bose-Einstein condensation in pion matter
• Polaronic Proton and Diproton Clustering in Neutron-Rich Matter
• Thermodynamic properties of interacting bosons with zero chemical potential
• Tripling Fluctuations and Peaked Sound Speed in Fermionic Matter
• Optical spin transport theory of spin-1/2 topological Fermi superfluids
• Emergent Fano-Feshbach resonance in two-band superconductors with an incipient quasi-flat band: Enhanced critical temperature evading particle-hole fluctuations
• Optimizing the proximity effect along the BCS-BEC crossover
• Proposed Fermi-surface reservoir-engineering and application to realizing unconventional Fermi superfluids in a driven-dissipative non-equilibrium Fermi gas
• Density correlation functions and the spatial structure of the two-dimensional BEC-BCS crossover
• Stability of the Fulde-Ferrell-Larkin-Ovchinnikov states in anisotropic systems and critical behavior at thermal $m$-axial Lifshitz points
• BCS-BEC Crossover Effects and Pseudogap in Neutron Matter
• Application of renormalized RPA to polarized Fermi gases
• Nonequilibrium noise as a probe of pair-tunneling transport in the BCS--BEC Crossover
• Mean-Field Theory for Fermion Pairs and the ab initio Particle-Vibration-Coupling Approach
• Impact of Multiple Phase Transitions in Dense QCD on Compact Stars
• Nature of the mixed-parity pairing of attractive fermions with spin-orbit coupling in optical lattice
• Spatial structure of the pair wavefunction and the density correlation functions at the BEC-BCS crossover
• Spatial emergence of Off-Diagonal Long-Range Order throughout the BCS-BEC crossover
• Competition between pairing and tripling in one-dimensional fermions with coexistent s- and p-wave interactions
• Density-Induced Hadron-Quark Crossover via the Formation of Cooper Triples
• Light clusters in the liquid proto-neutron star inner crust
• Universal Density Shift Coefficients for the Thermal Conductivity and Shear Viscosity of a Unitary Fermi Gas
• Non-relativistic trace anomaly and equation of state in dense fermionic matter
• Low-Dimensional Fluctuations and Pseudogap in Gaudin-Yang Fermi Gases
• Low-momentum interactions for ultracold Fermi gases
• Domes of $T_c$ in single-band and multiband superconductors with finite-range attractive interactions
• Weakly-interacting Bose-Bose mixtures from the functional renormalisation group
• Brueckner $G$-matrix approach to two-dimensional Fermi gases with the finite-range attractive interaction
• Normal modes for N identical particles: A study of the evolution of collective behavior from few-body to many-body
• Superfluid neutron matter with a twist
• Generalization of the Fermi Pseudopotential
• Phase diagram of interacting pion matter and isospin charge fluctuations
• Dynamical effects on superconductivity in BCS-BEC crossover
• Quantum Monte Carlo and perturbative study of two-dimensional Bose-Fermi mixtures
• Variational and parquet-diagram calculations for neutron matter. II. Twisted Chain Diagrams
• Bound states in a superfluid vortex: A detailed study along the BCS-BEC crossover
• Stable non-equilibrium Fulde-Ferrell-Larkin-Ovchinnikov state in a spin-imbalanced driven-dissipative Fermi gas loaded on a three-dimensional cubic optical lattice
• Non-Hermitian Ferromagnetism in an Ultracold Fermi Gas
• Coexistence of topological and nontopological Fermi-superfluid phases
• Collective excitations of a charged Fermi superfluid in the BCS-BEC crossover
• Boson-fermion pairing and condensation in two-dimensional Bose-Fermi mixtures
• Exploring ${}^3{P}_0$ Superfluid in Dilute Spin-Polarized Neutron Matter
• Spectral properties and observables in ultracold Fermi gases
• Strong-coupling effects of pairing fluctuations, and Anderson-Bogoliubov mode in neutron ${}^1$S${}_0$ superfluids in neutron stars
• Particle and pair spectra for strongly correlated Fermi gases: A real-frequency solver
• Cooper pairing and tripling in one-dimensional spinless fermions with attractive two- and three-body forces
• Exact results for the Casimir force of a three-dimensional model of relativistic Bose gas in a film geometry
• Spin-dipole mode in a trapped Fermi gas near unitarity
• Nambu-Covariant Many-Body Theory II: Self-Consistent Approximations
• Critical point influenced by Bose-Einstein condensation
• Tuning Dissipation and Excitations in Superfluid Fermi Gases with a Moving Impurity
• Scattering resonances and pairing in a Rabi-coupled Fermi gas
• Superfluid density reduction and spin-imbalanced pairing in a fermionic superfluid due to dynamical boson exchange
• Quartet correlations near the surface of $N=Z$ nuclei
• Response functions of hot and dense matter in the Nambu-Jona-Lasino model
• BCS-BEC crossover of the strongly interacting ${}^6$Li-${}^{40}$K mixture
• Dipole-Mode Spectrum and Hydrodynamic Crossover in a Resonantly Interacting Two-Species Fermion Mixture
• Hybrid-pair superfluidity in a strongly driven Fermi gas
• Impact of Disorder on the Superconducting Properties and BCS-BEC Crossover in FeSe Single Crystals
• The Gor'kov and Melik-Barkhudarov correction to an imbalanced Fermi gas in the presence of impurities
• Hidden Pseudogap and Excitation Spectra in a Strongly Coupled Two-Band Superfluid/Superconductor
• Cold atoms beyond atomic physics
• Peaks and widths of radio-frequency spectra: An analysis of the phase diagram of ultra-cold Fermi gases
• Possibility of BCS-BEC crossover in $\kappa$-type organic superconductors
• Hartree shift and pairing gap in ultracold Fermi gases in the framework of low-momentum interactions
• Optically trapped Feshbach molecules of fermionic ${}^{161}$Dy and ${}^{40}$K: Role of light-induced and collisional losses
• Quenched disorder and the BCS-BEC crossover in the Hubbard model
• Single Particle Spectroscopies of $p$-wave and $d$-wave Interacting Bose Gases in Normal Phase
• Schwinger-Keldysh approach to tunneling transport at a hadron-quark interface
• Hidden Bose-Einstein Singularities in Correlated Electron Systems: II. Pseudogap Phase in the Weakly Attractive Hubbard Model
• Atom-dimer and dimer-dimer scatterings in a spin-orbit coupled Fermi gas
• Finite-range effect in the two-dimensional density-induced BCS-BEC crossover
• The normal state of attractive Fermi gases from coupled-cluster theory
• Coupled oscillator model of a trapped Fermi gas at the BEC-BCS crossover
• Interaction-Range Effects and Universality in the BCS-BEC Crossover of Spin-Orbit Coupled Fermi Gases
• Inclusion of pairing fluctuations in a semiclassical approach: The case of study of the Josephson effect
• Temperature of the hot $\alpha$-source: a guidance to probe the Bose-Einstein condensation of $\alpha$ clusters in the heavy-ion collision
• Recombination in the universal four-fermion system
• Strong Fulde-Ferrell Larkin-Ovchinnikov pairing fluctuations in polarized Fermi systems
• Interactions of the deuteron with a hadronic medium
• Miscibility-Immiscibility transition of strongly interacting bosonic mixtures in optical lattices
• Tunneling spectra of unconventional quasi-two-dimensional superconductors
• Energy Dynamics of a Nonequilibrium Unitary Fermi Gas
• Weighted Hartree-Fock-Bogoliubov method for interacting fermions: An application to ultracold Fermi superfluids
• Small amplitude collective modes of a finite-size unitary Fermi gas in deformed traps
• Reflections on future problems in cluster science
• Fulde-Ferrell superfluids in an asymmetric three-component Fermi Gas
• Bardeen-Cooper-Schrieffer--type pairing in a spin-$\frac{1}{2}$ Bose gas with spin-orbit coupling
• Quasiparticle disintegration in fermionic superfluids
• Quarkyonic matter and hadron-quark crossover from an ultracold atom perspective
• Correlation lengths of flat-band superconductivity from quantum geometry
• Two-band atomic superfluidity in the presence of an orbital Feshbach resonance
• Self-consistent inclusion of disorder in the BCS-BEC crossover near the critical temperature
• Mass-imbalance effect on the cluster formation in a one-dimensional Fermi gas with coexistent $s$- and $p$-wave interactions
• Beyond Random Phase Approximation in electron-hole bilayer superfluidity
• Bose-Einstein Condensation and Dissipative Dynamics in a Relativistic Pion Gas