A Quantum Measurement Engine and the Demon's Arrow of Time
ORAL
Abstract
We discuss a quantum measurement engine, powered by dichotomous quantum weak measurements on a single qubit weakly coupled to a thermal reservoir, and feedback controlled by a quantum Maxwell's demon. For a demon acquiring information via quantum weak measurements, we find that the work extracted can be associated with the demon's quantum measurement arrow of time. We also discuss a realistic time-continuous operation of the engine where the measurement and feedback operations are time-continuous. In addition, we show that the engine approaches a steady state for long enough time where it operates with finite efficiency.
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Presenters
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KAGAN YANIK
University of Rochester
Authors
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KAGAN YANIK
University of Rochester
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Sreenath K Manikandan
Nordita, KTH Royal Institute of Technology and Stockholm University, University of Rochester
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Andrew N Jordan
Chapman University, University of Rochester, Institute for Quantum Studies
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Bibek Bhandari
Department of Physics and Astronomy, University of Rochester, University of Rochester