Nonequilibrium work energy relation for non-Hamiltonian dynamics.

Recent years have witnessed major advances in our understanding of nonequilibrium processes. The Jarzynski equality, for example, provides a link between equilibrium free energy differences and finite-time nonequilibrium dynamics. We propose a generalization of this relation to non-Hamiltonian dynamics, relevant for active matter systems, continuous feedback, and computer simulation. Surprisingly, this relation allows us to calculate the free energy difference between the desired initial and final equilibrium states using arbitrary dynamics. As a practical matter, this dissociation between the dynamics and the initial and final states promises to facilitate a range of techniques for free energy estimation in a single universal expression.

• Publication year

  2015

• Venue

  Physical Review E

• Publication date

  2015-09-17

• Fields of study

  Medicine, Physics

• Identifiers
  DOI 10.1103/PhysRevE.93.042129arXiv 1509.05148PMID 27176276
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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