4.8 Article

Emergent Thermodynamics in a Quenched Quantum Many-Body System

Journal

PHYSICAL REVIEW LETTERS
Volume 109, Issue 16, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.160601

Keywords

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Funding

  1. EPSRC (UK)
  2. IRCSET through a Marie Curie International Mobility fellowship
  3. Alexander von Humboldt Foundation
  4. EPSRC (UK) a grant under the New Directions for EPSRC Research Leaders'' initiative [EP/G004579/1]
  5. John Templeton Foundation
  6. National Research Foundation
  7. Ministry of Education in Singapore
  8. Leverhulme Trust (UK)
  9. EPSRC [EP/G004579/1] Funding Source: UKRI
  10. Engineering and Physical Sciences Research Council [EP/G004579/1] Funding Source: researchfish

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We study the statistics of the work done, fluctuation relations, and irreversible entropy production in a quantum many-body system subject to the sudden quench of a control parameter. By treating the quench as a thermodynamic transformation we show that the emergence of irreversibility in the nonequilibrium dynamics of closed many-body quantum systems can be accurately characterized. We demonstrate our ideas by considering a transverse quantum Ising model that is taken out of equilibrium by an instantaneous change of the transverse field.

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