Proposed Fermi-surface reservoir-engineering and application to realizing unconventional Fermi superfluids in a driven-dissipative non-equilibrium Fermi gas
arXiv:2111.02594 · doi:10.1103/PhysRevA.106.013311
Abstract
We develop a theory to describe the dynamics of a driven-dissipative many-body Fermi system, to pursue our proposal to realize exotic quantum states based on reservoir engineering. Our idea is to design the shape of a Fermi surface so as to have multiple Fermi edges, by properly attaching multiple reservoirs with different chemical potentials to a fermionic system. These emerged edges give rise to additional scattering channels that can destabilize the system into unconventional states, which is exemplified in this work by considering a driven-dissipative attractively interacting Fermi gas. By formulating a quantum kinetic equation using the Nambu-Keldysh Green's function technique, we explore nonequilibrium steady states in this system and assess their stability. We find that, in addition to the BCS-type isotropic pairing state, a Fulde-Ferrell-type anisotropic superfluid state being accompanied by Cooper pairs with non-zero center-of-mass momentum exists as a stable solution, even in the absence of a magnetic Zeeman field. Our result implies a great potential of realizing quantum matter beyond the equilibrium paradigm, by engineering the shape and topology of Fermi surfaces in both electronic and atomic systems.
arXiv comment23 pages, 11 figures
References in corpus (82)
- Novel type of phase transition in a system of self-driven particles
- Quantum fluids of light
- Non-Hermitian Physics
- Quantum States and Phases in Driven Open Quantum Systems with Cold Atoms
- Universal High-Frequency Behavior of Periodically Driven Systems: from Dynamical Stabilization to Floquet Engineering
- Atomic quantum gases in periodically driven optical lattices
- Observation of a Discrete Time Crystal
- Observation of discrete time-crystalline order in a disordered dipolar many-body system
- Floquet Engineering of Quantum Materials
- Floquet Time Crystals
- Pairing and Phase Separation in a Polarized Fermi Gas
- On the phase structure of driven quantum systems
- A Rydberg Quantum Simulator
- An optically stimulated superconducting-like phase in K3C60 far above equilibrium Tc
- Nonequilibrium dynamical mean-field theory and its applications
- Inhomogeneous Superconductivity in Condensed Matter and QCD
- Discrete time crystals: rigidity, criticality, and realizations
- Non-reciprocal phase transitions
- Keldysh Field Theory for Driven Open Quantum Systems
- Topology by Dissipation in Atomic Quantum Wires
- Bistability of Cavity Magnon Polaritons
- Nonreciprocal Photon Transmission and Amplification via Reservoir Engineering
- Spin-Imbalance in a One-Dimensional Fermi Gas
- Fulde-Ferrell-Larkin-Ovchinnikov State in Heavy Fermion Superconductors
- Observation of Phase Separation in a Strongly-Interacting Imbalanced Fermi Gas
- Interior Gap Superfluidity
- A Dissipatively Stabilized Mott Insulator of Photons
- Phase diagram of a two-component Fermi gas with resonant interactions
- Non-equilibrium quantum condensation in an incoherently pumped dissipative system
- Conduction of Ultracold Fermions Through a Mesoscopic Channel
- Phase separation in asymmetrical fermion superfluids
- Pre-thermal phases of matter protected by time-translation symmetry
- The BCS-BEC crossover: From ultra-cold Fermi gases to nuclear systems
- Nonreciprocity as a generic route to traveling states
- Topology and Broken Symmetry in Floquet Systems
- Observation of Quantized Conductance in Neutral Matter
- Ultra-cold Polarized Fermi Gases
- Finite temperature phase diagram of a polarised Fermi condensate
- Nanometer-scale spatial modulation of an inter-atomic interaction in a Bose-Einstein condensate
- Observation of Laughlin states made of light
- Scalar Active Mixtures: The Non-Reciprocal Cahn-Hilliard Model
- Controlling a magnetic Feshbach resonance with laser light
- Two-terminal transport measurements with cold atoms
- The Fulde-Ferrell-Larkin-Ovchinnikov state for ultracold fermions in lattice and harmonic potentials: a review
- Connecting strongly correlated superfluids by a quantum point contact
- Mean field phase diagrams of imbalanced Fermi gases near a Feshbach resonance
- Negative differential conductivity in an interacting quantum gas
- Cold asymmetrical fermion superfluids
- Non-Hermitian phase transition from a polariton Bose-Einstein condensate to a photon laser
- Non-equilibrium Tunneling Spectroscopy in Carbon Nanotubes
- Critical fluctuations at a many-body exceptional point
- Mean field theory and fluctuation spectrum of a pumped, decaying Bose-Fermi system across the quantum condensation transition
- Magnetic-field-dependent quasiparticle energy relaxation in mesoscopic wires
- Resistance of superconducting nanowires connected to normal metal leads
- Broken translational and time-reversal symmetry in superconducting films
- On the Bloch Theorem Concerning Spontaneous Electric Current
- Evanescent states and non-equilibrium in driven superconducting nanowires
- Critical voltage of a mesoscopic superconductor
- Photo-induced Superconducting State with Long-lived Disproportionate Band Filling in FeSe
- Two-field optical methods to control magnetic Feshbach resonances
- Designer Spatial Control of Interactions in Ultracold Gases
- Anomalous conductances in an ultracold quantum wire
- Optical control of a magnetic Feshbach resonance in ultracold Fermi gases
- Retrapping Current, Self-Heating, and Hysteretic Current-Voltage Curves in Ultra-Narrow Superconducting Aluminum Nanowires
- Crossover from the vortex state to the Fulde-Ferrell-Larkin-Ovchinnikov state in quasi-two-dimensional superconductors
- Dynamical instability of a driven-dissipative electron-hole condensate in the BCS-BEC-crossover region
- Anomalous Transport in the Superfluid Fluctuation Regime
- Bi-stability in voltage-biased NISIN structures
- Voltage-induced thin-film superconductivity in high magnetic fields
- Photoluminescence and gain/absorption spectra of a driven-dissipative electron-hole-photon condensate
- Non-equilibrium properties of a pumped-decaying Bose-condensed electron-hole gas in the BCS-BEC crossover region
- Generating Functional Approach for Spontaneous Coherence in Semiconductor Electron-Hole-Photon Systems
- Mesoscopic spin transport between strongly interacting Fermi gases
- Fulde-Ferrell Superfluids without Spin Imbalance in Driven Optical Lattices
- Realizing Fulde-Ferrell Superfluids via a Dark-State Control of Feshbach Resonances
- Floquet FFLO superfluids and Majorana fermions in a shaken fermionic optical lattice
- A novel route to a finite center-of-mass momentum pairing state; current driven FFLO state
- Controlled Transport between Fermi Superfluids Through a Quantum Point Contact
- Non-equilibrium strong-coupling theory for a driven-dissipative ultracold Fermi gas in the BCS-BEC crossover region
- Unconventional fermionic pairing states in a monochromatically tilted optical lattice
- Probing Energy-Dependent Feshbach Resonances by Optical Control
- Bistable state in superconductor/ferromagnet heterostructures
Cited by in corpus (7)
- Feasibility of a Fulde-Ferrell-Larkin-Ovchinnikov superfluid Fermi atomic gas
- Emergence of Larkin-Ovchinnikov-type superconducting state in a voltage-driven superconductor
- Stable non-equilibrium Fulde-Ferrell-Larkin-Ovchinnikov state in a spin-imbalanced driven-dissipative Fermi gas loaded on a three-dimensional cubic optical lattice
- Nonequilibrium BCS-BEC crossover and unconventional FFLO superfluid in a strongly interacting driven-dissipative Fermi gas
- Engineering nonequilibrium superconducting phases in a voltage-driven superconductor under an external magnetic field
- Nonequilibrium electron distribution function in a voltage-biased nanowire: A nonequilibrium Green's function approach
- Emergence of Charge-Imbalanced BCS State and Suppression of Nonequilibrium FFLO State in Asymmetric NSN Junctions