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Quantum signatures in a quadratic optomechanical heat engine with an atom in a tapered trap

Title	Quantum signatures in a quadratic optomechanical heat engine with an atom in a tapered trap
Author	Izadyari, M., Öncü, Mehmet, Durak, Kadir, Müstecaplioğlu, Ö. E.
Publication Date:	2022-12
Publication Place	- Optica Publishing Group
Type	Periodical
Language	English
Digital	Yes
Manuscript	No
Library:	Özyeğin University
Library Asset ID	0740-3224
Record ID	be246e85-ea83-4cda-ba7e-d704ba9af042
Library Location	Electrical & Electronics Engineering
Date	2022-12
Notes	TÜBİTAK
Sample Text	We investigate how quantum signatures can emerge in a single atom heat engine consisting of an atom confined in a tapered trap and subjected to hot and cold thermal reservoirs. A similar system was realized experimentally in Science 352, 325 (2016). We model such a system using a quadratic optomechanical model and identify an effective Otto cycle in the system’s dynamics. We compare the engine’s performance in quantum and classical regimes by evaluating the power dissipated. We find that lowering the temperature is insufficient to make the single atom engine in Science 352, 325 (2016) a genuine quantum-enhanced heat engine. We show that it is necessary to make the trap more asymmetric and confined to ensure that quantum correlations cause an enhancement in the power output.
DOI	10.1364/JOSAB.472901
Cilt	39

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Quantum signatures in a quadratic optomechanical heat engine with an atom in a tapered trap

Author Izadyari, M., Öncü, Mehmet, Durak, Kadir, Müstecaplioğlu, Ö. E.

Publication Date 2022-12

Publication Place - Optica Publishing Group

Type Periodical

Language English

Digital Yes

Manuscript No

Library Özyeğin University

Library Asset ID 0740-3224

Record ID be246e85-ea83-4cda-ba7e-d704ba9af042

Library Location Electrical & Electronics Engineering

Date 2022-12

Notes TÜBİTAK

Sample Text We investigate how quantum signatures can emerge in a single atom heat engine consisting of an atom confined in a tapered trap and subjected to hot and cold thermal reservoirs. A similar system was realized experimentally in Science 352, 325 (2016). We model such a system using a quadratic optomechanical model and identify an effective Otto cycle in the system’s dynamics. We compare the engine’s performance in quantum and classical regimes by evaluating the power dissipated. We find that lowering the temperature is insufficient to make the single atom engine in Science 352, 325 (2016) a genuine quantum-enhanced heat engine. We show that it is necessary to make the trap more asymmetric and confined to ensure that quantum correlations cause an enhancement in the power output.

DOI 10.1364/JOSAB.472901

Cilt 39