Fluctuation relation for qubit calorimetry.
basic_science · Level V
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- Record sourced from PubMed, PMID 28085446.
- Also identified by DOI 10.1103/PhysRevE.94.062127.
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Abstract
Motivated by proposed thermometry measurement on an open quantum system, we present a simple model of an externally driven qubit interacting with a finite-sized fermion environment acting as a calorimeter. The derived dynamics is governed by a stochastic Schrödinger equation coupled to the temperature change of the calorimeter. We prove a fluctuation relation and deduce from it a notion of entropy production. Finally, we discuss the first and second law associated with the dynamics.