Quantum coherence and criticality in irreversible work
Adalberto D. Varizi, André P. Vieira, Cecilia Cormick, Raphael C. Drumond, Gabriel T. Landi
Abstract
The authors study the contributions from populations and coherences to the entropy production in a XY model under a quantum quench protocol. The paper shows that each contribution can signal the quantum phase transition of the model even at high temperatures and that the populations contribution is responsible for the critical behavior of the entropy production.
Topics & Concepts
QuantumPhysicsStatistical physicsCriticalityEntropy productionCoherence (philosophical gambling strategy)Quantum phase transitionEntropy (arrow of time)Quantum discordQuantum mechanicsPhase transitionQuantum fluctuationQuantum relative entropyWork (physics)Quantum systemQuantum phasesQuantum thermodynamicsCondensed matter physicsNon-equilibrium thermodynamicsJoint quantum entropyGeneralized relative entropyPhase coherenceClassical XY modelTheoretical physicsCritical phenomenaAdvanced Thermodynamics and Statistical MechanicsQuantum many-body systemsStatistical Mechanics and Entropy