Theory of non-Hermitian fermionic superfluidity on a honeycomb lattice: Interplay between exceptional manifolds and van Hove Singularity
arXiv:2309.16191 · doi:10.1103/PhysRevB.109.L060501
Abstract
We study the non-Hermitian fermionic superfluidity subject to dissipation of Cooper pairs on a honeycomb lattice, for which we analyze the attractive Hubbard model with a complex-valued interaction. Remarkably, we demonstrate the emergence of the dissipation-induced superfluid phase that is anomalously enlarged by a cusp on the phase boundary. We find that this unconventional phase transition originates from the interplay between exceptional lines and van Hove singularity, which has no counterpart in equilibrium. Moreover, we demonstrate that the infinitesimal dissipation induces the nontrivial superfluid solution at the critical point. Our results can be tested in ultracold atoms with photoassociation techniques by postselcting special measurement outcomes with the use of quantum-gas microscopy and can lead to understanding the NH many-body physics triggered by exceptional manifolds in open quantum systems.
arXiv comment7+7 pages, 4+6 figures
References in corpus (79)
- Experimental realisation of the topological Haldane model
- Non-Hermitian Physics
- Observation of resonance condensation of fermionic atom pairs
- Topological phases of non-Hermitian systems
- Condensation of Pairs of Fermionic Atoms Near a Feshbach Resonance
- A Mott insulator of fermionic atoms in an optical lattice
- Creating, moving and merging Dirac points with a Fermi gas in a tunable honeycomb lattice
- Realizing a lattice spin model with polar molecules
- Quantum trajectories and open many-body quantum systems
- Observation of the Pairing Gap in a Strongly Interacting Fermi Gas
- Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas
- Keldysh Field Theory for Driven Open Quantum Systems
- Using photoemission spectroscopy to probe a strongly interacting Fermi gas
- Ultracold Atoms in a Tunable Optical Kagome Lattice
- Tools for quantum simulation with ultracold atoms in optical lattices
- Strong dissipation inhibits losses and induces correlations in cold molecular gases
- Evidence for Superfluidity of Ultracold Fermions in an Optical Lattice
- Controlling the dynamics of an open many-body quantum system with localized dissipation
- Non-Hermitian Many-Body Localization
- Parity-time-symmetric quantum critical phenomena
- Signatures of Many-Body Localization in a Controlled Open Quantum System
- Pinning the order: the nature of quantum criticality in the Hubbard model on honeycomb lattice
- Observation of the Mott Insulator to Superfluid Crossover of a Driven-Dissipative Bose-Hubbard System
- Theory of Non-Hermitian Fermionic Superfluidity with a Complex-Valued Interaction
- Exploring dynamical phase transitions with cold atoms in an optical cavity
- Measurement-induced quantum criticality under continuous monitoring
- Measurement-induced phase transition: A case study in the non-integrable model by density-matrix renormalization group calculations
- Non-Hermitian Kondo effect in ultracold alkaline-earth atoms
- Magic of high order van Hove singularity
- Suppressing the loss of ultracold molecules via the continuous quantum Zeno effect
- Quantum Control by Imaging : The Zeno effect in an ultracold lattice gas
- SYK meets non-Hermiticity II: measurement-induced phase transition
- Fate of measurement-induced phase transition in long-range interactions
- Exact Liouvillian Spectrum of a One-Dimensional Dissipative Hubbard Model
- Continuous Phase Transition without Gap Closing in Non-Hermitian Quantum Many-Body Systems
- BCS-BEC crossover on the two-dimensional honeycomb lattice
- Skin superfluid, topological Mott insulators, and asymmetric dynamics in interacting non-Hermitian Aubry-Andre-Harper models
- Quantum gas microscopy of an attractive Fermi-Hubbard system
- Anomalous momentum diffusion in a dissipative many-body system
- Observation of a Transition Between Dynamical Phases in a Quantum Degenerate Fermi Gas
- Quantum critical behavior influenced by measurement backaction in ultracold gases
- Measurement-induced transitions of the entanglement scaling law in ultracold gases with controllable dissipation
- Non-Hermitian topological Mott insulators in one-dimensional fermionic superlattices
- Dynamics of Ultracold Quantum Gases in the Dissipative Fermi-Hubbard Model
- Non-Hermitian phase transition from a polariton Bose-Einstein condensate to a photon laser
- Single atom detection in ultracold quantum gases: a review of current progress
- Universal properties of dissipative Tomonaga-Luttinger liquids: Case study of a non-Hermitian XXZ spin chain
- Dissipative Bose-Hubbard system with intrinsic two-body loss
- Critical fluctuations at a many-body exceptional point
- Kondo effect in a parity-time-symmetric non-Hermitian Hamiltonian
- Dynamical sign reversal of magnetic correlations in dissipative Hubbard models
- Collective Excitations and Nonequilibrium Phase Transition in Dissipative Fermionic Superfluids
- Theory of superconductivity with non-Hermitian and parity-time reversal symmetric cooper pairing symmetry
- Quantized conductance through a dissipative atomic point contact
- Exceptional Spin Liquids from Couplings to the Environment
- Topological Bose-Mott insulators in one-dimensional non-Hermitian superlattices
- Preparation and spectroscopy of a metastable Mott insulator state with attractive interactions
- Direct observation of non-local fermion pairing in an attractive Fermi-Hubbard gas
- Angle-resolved photoemission spectroscopy of a Fermi-Hubbard system
- Generalized quantum measurements with matrix product states: Entanglement phase transition and clusterization
- Localization properties in disordered quantum many-body dynamics under continuous measurement
- Antiferromagnetism of the Hubbard Model on a Layered Honeycomb Lattice - Is MgB a Nearly-Antiferromagnetic Metal? -
- Observation of the Sign Reversal of the Magnetic Correlation in a Driven-Dissipative Fermi Gas in Double Wells
- Superfluid signatures in a dissipative quantum point contact
- Universal description of dissipative Tomonaga-Luttinger liquids with SU() spin symmetry: Exact spectrum and critical exponents
- -pairing ground states in the non-Hermitian Hubbard model
- Geometry and superfluidity of the flat band in a non-Hermitian optical lattice
- Non-Hermitian BCS-BEC evolution with a complex scattering length
- Yang-Lee Zeros, Semicircle Theorem, and Nonunitary Criticality in Bardeen-Cooper-Schrieffer Superconductivity
- Topological Protection in non-Hermitian Haldane Honeycomb Lattices
- Topological phase diagrams of exactly solvable non-Hermitian interacting Kitaev chains
- Complex fixed points of the non-Hermitian Kondo model in a Luttinger liquid
- Non-Hermiticity induced Exceptional Points and Skin Effect in the Dice-Haldane Model
- Solvable BCS-Hubbard Liouvillians in arbitrary dimensions
- Non-Hermitian topological Fermi superfluid near the -wave unitary limit
- Non-Hermitian BCS-BEC crossover of Dirac fermions
- Non-Hermitian Haldane-Hubbard model: Effective description of one- and two-body dissipation
- Reentrant Fulde-Ferrell-Larkin-Ovchinnikov superfluidity in the honeycomb lattice
- Observation of Chiral-Mode Domains in a Frustrated XY Model on Optical Triangular Lattices
Cited by in corpus (8)
- Correlation versus dissipation in a non-Hermitian Anderson impurity model
- Phase diagram of non-Hermitian BCS superfluids in a dissipative asymmetric Hubbard model
- Spin-Depairing-Induced Exceptional Fermionic Superfluidity
- Non-Hermitian -wave superfluid and effects of the inelastic three-body loss in a one-dimensional spin-polarized Fermi gas
- Local Non-Hermitian Hamiltonian Formalism for Dissipative Fermionic Systems and Loss-Induced Population Increase in Fermi Superfluids
- Modulated honeycomb lattices and their magnetic properties
- Liouvillian skin effects in two-dimensional electron systems at finite temperatures
- Exceptional flat bands in bipartite non-Hermitian lattices