Quantum irreversibility of quasistatic protocols for finite-size quantized systems

Yehoshua Winsten, Doron Cohen

Research output: Contribution to journalArticlepeer-review


Quantum mechanically, a driving process is expected to be reversible in the quasistatic limit, also known as the adiabatic theorem. This statement stands in opposition to classical mechanics, where a mix of regular and chaotic dynamics implies irreversibility. A paradigm for demonstrating the signatures of chaos in quantum irreversibility is a sweep process whose objective is to transfer condensed bosons from a source orbital. We show that such a protocol is dominated by an interplay of adiabatic-shuttling and chaos-assisted depletion processes. The latter is implied by interaction terms that spoil the Bogoliubov integrability of the Hamiltonian. As the sweep rate is lowered, a crossover to a regime that is dominated by quantum fluctuations is encountered, featuring a breakdown of quantum-to-classical correspondence. The major aspects of this picture are not captured by the common two-orbital approximation, which implies failure of the familiar many-body Landau-Zener paradigm.

Original languageEnglish
Article number052202
JournalPhysical Review A
Issue number5
StatePublished - 1 May 2023

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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