Quench, thermalization, and residual entropy across a non-Fermi liquid to Fermi liquid transition
Arijit Haldar, Prosenjit Haldar, Surajit Bera, Ipsita Mandal, Sumilan Banerjee
Abstract
This work shows how a Fermi liquid evolves to a non-Fermi liquid and vice versa after a quantum quench in a model with a quantum critical point separating the two states. The quench is achieved by joining a fermion cluster having Sachdev-Ye-Kitaev-type interactions and a cluster of non-interacting fermions having Fermi liquid behavior. The critical point is approached when the sizes of the two clusters become equal.
Topics & Concepts
Fermi liquid theoryFermionCondensed matter physicsPhysicsQuantum critical pointCluster (spacecraft)Residual entropyWork (physics)Fermi Gamma-ray Space TelescopeQuantum oscillationsQuantumEntropy (arrow of time)Critical point (mathematics)Fermi gasQuantum phase transitionResidualStatistical physicsTriple pointCluster expansionTransition pointLiquid liquidFermi energyFermi levelQuantum mechanicsLuttinger liquidPhase transitionPoint (geometry)PseudogapQuantum many-body systemsTopological Materials and PhenomenaPhysics of Superconductivity and Magnetism