Quantum measurement engines and their relevance for quantum interpretations

Journal Article · Mon Dec 23 00:00:00 UTC 2019 · Quantum Studies: Mathematics and Foundations

DOI: https://doi.org/10.1007/s40509-019-00217-2 · OSTI ID:2222819

Jordan, Andrew N.  ^[1]; Elouard, Cyril ^[2]; Auffèves, Alexia ^[3]

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1. Univ. of Rochester, NY (United States); Chapman Univ., Orange, CA (United States); Chapman University
2. Univ. of Rochester, NY (United States)
3. Institut Neel, Grenoble (France); Centre National de la Recherche Scientifique (CNRS) (France)

This article presents recent progress in the theory of quantum measurement engines and discusses the implications of them for quantum interpretations and philosophical implications of the theory. Several new measurement engine designs are introduced and analyzed. Here we discuss a feedback-based atom-and-piston engine that exactly associates all work with successful events and all quantum heat with the failed events, as well as an unconditional but coherent qubit engine that can attain perfect efficiency. Any quantum measurement of an observable that does not commute with the Hamiltonian will necessarily change the energy of the system. We discuss different ways to extract that energy, the efficiency and work production of that process.

• Research Organization: Univ. of Rochester, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• Grant/Contract Number: SC0017890
• OSTI ID: 2222819
• Journal Information: Quantum Studies: Mathematics and Foundations, Journal Name: Quantum Studies: Mathematics and Foundations Journal Issue: 2 Vol. 7; ISSN 2196-5609
• Publisher: SpringerCopyright Statement
• Country of Publication: United States
• Language: English