Quantum cycle in relativistic non-commutative space with generalized uncertainty principle correction

Chattopadhyay, Pritam; Pandit, Tanmoy; Mitra, Ayan; Paul, Goutam

doi:10.1016/j.physa.2021.126365

Cited by 4 publications

(1 citation statement)

References 51 publications

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“…While quantum heat engines have been extensively studied within the domain of quantum mechanics, their exploration in the context of relativistic quantum mechanics [9][10][11][12][13][14][15][16] and quantum field theory remains relatively unexplored. Recent investigations [17,18] have delved into QOEs where the working substance is an Unruh-DeWitt (UDW) particle detector [19,20] interacting with quantum scalar and spinor fields.…”

Section: Introductionmentioning

confidence: 99%

Relativistic quantum Otto engine: instant work extraction from a quantum field

Gallock-Yoshimura

2024

J. High Energ. Phys.

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In this study, we carry out a non-perturbative approach to a quantum Otto engine, employing an Unruh-DeWitt particle detector to extract work from a quantum Klein-Gordon field in an arbitrary globally hyperbolic curved spacetime. We broaden the scope by considering the field in any quasi-free state, which includes vacuum, thermal, and squeezed states. A key aspect of our method is the instantaneous interaction between the detector and the field, which enables a thorough non-perturbative analysis. We demonstrate that the detector can successfully extract positive work from the quantum Otto cycle, even when two isochoric processes occur instantaneously, provided the detector in the second isochoric process receives a signal from the first interaction. This signaling allows the detector to release heat into the field, thereby the thermodynamic cycle is completed. As a demonstration, we consider a detector at rest in flat spacetime and compute the work extracted from the Minkowski vacuum state.

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Section: Introductionmentioning

confidence: 99%

Relativistic quantum Otto engine: instant work extraction from a quantum field

Gallock-Yoshimura

2024

J. High Energ. Phys.

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PT-symmetry effects in measurement-based quantum thermal machines

Santos,

Chattopadhyay

2023

Physica A: Statistical Mechanics and its Applications

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Single-piston quantum engine

Rodin

2024

Phys. Rev. Research

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A single-piston quantum engine based on a harmonic oscillator acting as the working fluid is proposed. Using the fact that the interaction between the piston and the oscillator depends on the extent of the oscillator wave function, one can control this interaction by modifying the oscillator temperature. By retracting the piston when the interaction is weak (hot oscillator) and returning it to the original position when the coupling is strong (cold oscillator), useful work can be performed assuming the interaction is attractive. The cycle of the engine is simulated numerically using two different powering protocols: bath and measurement. Using the collision model for the baths, the engine is shown to reach a steady state with positive work output. Published by the American Physical Society 2024

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Quantum cycle in relativistic non-commutative space with generalized uncertainty principle correction

Cited by 4 publications

References 51 publications

Relativistic quantum Otto engine: instant work extraction from a quantum field

Relativistic quantum Otto engine: instant work extraction from a quantum field

PT-symmetry effects in measurement-based quantum thermal machines

Single-piston quantum engine

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