Alternative experimental ways to access entropy production

نویسندگان

چکیده

We theoretically derive and experimentally compare several different ways to access entropy production in a quantum process under feedback control. focus on bipartite system realizing an autonomous Maxwell's demon scheme reported by Najera-Santos et al. [Phys.~Rev.~Research 2, 032025(R) (2020)], where information encoded is consumed transfer heat from cold qubit hot cavity. By measuring individual trajectories of the joint demon-cavity-qubit system, we compute with six distinct expressions derived approaches description its evolution. Each method uses specific set data processing. Our results provide unified view various meanings irreversibility systems pave way measurement beyond thermal frameworks.

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ژورنال

عنوان ژورنال: Physical review research

سال: 2021

ISSN: ['2643-1564']

DOI: https://doi.org/10.1103/physrevresearch.3.043076