Prethermalization with negative specific heat
Autor: | Amichay Vardi, James R. Anglin, Sayak Ray |
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Rok vydání: | 2020 |
Předmět: |
Physics
Specific heat Statistical Mechanics (cond-mat.stat-mech) Adiabatic invariance FOS: Physical sciences 01 natural sciences Instability 010305 fluids & plasmas Classical mechanics Adiabatic invariant Quantum Gases (cond-mat.quant-gas) 0103 physical sciences Energy spectrum Thermal Relaxation (physics) 010306 general physics Condensed Matter - Quantum Gases Condensed Matter - Statistical Mechanics |
Zdroj: | Physical review. E. 102(5-1) |
ISSN: | 2470-0053 |
Popis: | We study noncanonical relaxation in an aggregate of subsystems with negative specific heat. The Thirring instability drives the constituent subsystems towards the edges of their energy spectrum, so that the existence of a single adiabatic invariant results in structured noncanonical steady states that are spectacularly different from the grand-canonical prediction. For parameter regimes where this adiabatic invariance breaks down, the system exhibits prethermalization far away from integrability, with an unprecedented contrast between the prethermal- and thermal states. |
Databáze: | OpenAIRE |
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