Journal
PHYSICAL REVIEW A
Volume 106, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.106.052201
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Funding
- National Center for Theoretical Sciences and National Science and Technology Council, Taiwan [MOST 110-2811-M-006-546, MOST 111-2917-I-564-005, MOST 111-2123-M-006-001]
- National Science and Technology Council, Taiwan [MOST 110-2112-M-006-012]
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The interplay between thermal machines and quantum correlations is explored, with a focus on the fragility of quantum-fueled machines in the presence of decoherence effects. A second demon is introduced to address this issue, allowing the work medium to pass through two dephasing channels via quantum superposition. A quantum circuit is proposed and tested on IBMQ and IonQ quantum computers.
The interplay between thermal machines and quantum correlations is of great interest in both quantum thermodynamics and quantum information science. Recently, a quantum Szilard engine has been proposed, showing that the quantum steerability between a Maxwell's demon and a work medium can be beneficial to a work extraction task. Nevertheless, this type of quantum-fueled machine is usually fragile in the presence of decoherence effects. Therefore, in this work we tackle this question by introducing a second demon who can access a control system and make the work medium pass through two dephasing channels in a manner of quantum superposition. Furthermore, we provide a quantum circuit to simulate our proposed concept and test it on IBMQ and IonQ quantum computers.
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