Interaction Quenches of Fermi Gases

Abstract

It is shown that the jump in the momentum distribution of Fermi gases evolves smoothly for small and intermediate times once an interaction between the fermions is suddenly switched on. The jump does not vanish abruptly. The loci in momentum space where the jumps occur are those of the noninteracting Fermi sea. No relaxation of the Fermi surface geometry takes place.

4 pages, 1 figure

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• Dynamical phase transitions in the collisionless pre-thermal states of isolated quantum systems: theory and experiments
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• Nonequilibrium dynamics in the one-dimensional Fermi-Hubbard model: A comparison of the nonequilibrium Green functions approach and the density matrix renormalization group method
• Quantum quench within the gapless phase of the spin-1/2 Heisenberg XXZ spin-chain
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• New theoretical approaches for correlated systems in nonequilibrium
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• Quench dynamics of the Tomonaga-Luttinger model with momentum dependent interaction
• Luttinger liquid properties of the steady state after a quantum quench
• Linear quantum quench in the Heisenberg XXZ chain: time dependent Luttinger model description of a lattice system
• Digital Quantum Simulation of Non-Equilibrium Quantum Many-Body Systems
• Non-thermal melting of Neel order in the Hubbard model
• On the thermalization of a Luttinger liquid after a sequence of sudden interaction quenches
• Dynamical Transition in Interaction Quenches of the One-Dimensional Hubbard Model
• Wick Theorem for General Initial States
• Interaction quenches in the two-dimensional fermionic Hubbard model
• Quantum quench spectroscopy of a Luttinger liquid: Ultrarelativistic density wave dynamics due to fractionalization in an XXZ chain
• A time and spatially resolved quench of the fermionic Hubbard model showing restricted equilibration
• Spectral properties of one-dimensional Fermi systems after an interaction quench
• Interaction Quench in Nonequilibrium Luttinger Liquids
• Quenches in initially coupled Tomonaga-Luttinger Liquids: a conformal field theory approach
• Sudden expansion and domain-wall melting of strongly interacting bosons in two-dimensional optical lattices and on multileg ladders
• One-dimensional fermionic systems after interaction quenches and their description by bosonic field theories
• Non-equilibrium effects on charge and energy partitioning after an interaction quench
• Time evolution during and after finite-time quantum quenches in Luttinger liquids
• Quench-induced delocalization
• Comparison of the Iterated Equation of Motion Approach and the Density Matrix Formalism for the Quantum Rabi Model
• Quantum mechanical treatment of large spin baths
• Strong quenches in the one-dimensional Fermi-Hubbard model
• Universal transport dynamics in a quenched tunnel-coupled Luttinger liquid
• One-particle entanglement for one dimensional spinless fermions after an interaction quantum quench
• Loading and detecting a three-dimensional Fermi gas in one-dimensional optical superlattice
• Optimal protocols for finite-duration quantum quenches in the Luttinger model
• Collective excitations in competing phases in two and three dimensions
• Small quenches and thermalization
• Charge dynamics in magnetically disordered Mott insulators
• Collective modes in superconductors including Coulomb repulsion
• From Luttinger liquids to Luttinger droplets via higher-order bosonization identities
• Multiple particle-hole pair creation in the Fermi-Hubbard model by a pump laser