Rapid quantum squeezing by jumping the harmonic oscillator frequency

Quantum sensing and quantum information processing use quantum advantages such as squeezed states that encode a quantity of interest with higher precision and generate quantum correlations to outperform classical methods. In harmonic oscillators, the rate of generating squeezing is set by a quantum...

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Main Authors: Xin, Mingjie, Leong, Wui Seng, Chen, Zilong, Wang, Yu, Lan, Shau-Yu
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2022
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Online Access:https://hdl.handle.net/10356/153662
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1536622023-02-28T19:52:51Z Rapid quantum squeezing by jumping the harmonic oscillator frequency Xin, Mingjie Leong, Wui Seng Chen, Zilong Wang, Yu Lan, Shau-Yu School of Physical and Mathematical Sciences Science::Physics States Entanglement Quantum sensing and quantum information processing use quantum advantages such as squeezed states that encode a quantity of interest with higher precision and generate quantum correlations to outperform classical methods. In harmonic oscillators, the rate of generating squeezing is set by a quantum speed limit. Therefore, the degree to which a quantum advantage can be used in practice is limited by the time needed to create the state relative to the rate of unavoidable decoherence. Alternatively, a sudden change of harmonic oscillator's frequency projects a ground state into a squeezed state which can circumvent the time constraint. Here, we create squeezed states of atomic motion by sudden changes of the harmonic oscillation frequency of atoms in an optical lattice. Building on this protocol, we demonstrate rapid quantum amplification of a displacement operator that could be used for detecting motion. Our results can speed up quantum gates and enable quantum sensing and quantum information processing in noisy environments. Ministry of Education (MOE) National Research Foundation (NRF) Published version This work was financially supported by Singapore National Research Foundation under Grant No. QEP-P4, Singapore Ministry of Education under Grants No. MOE2017-T2-2-066 and No. RG80/20. 2022-01-07T03:08:43Z 2022-01-07T03:08:43Z 2021 Journal Article Xin, M., Leong, W. S., Chen, Z., Wang, Y. & Lan, S. (2021). Rapid quantum squeezing by jumping the harmonic oscillator frequency. Physical Review Letters, 127(18), 183602-. https://dx.doi.org/10.1103/PhysRevLett.127.183602 0031-9007 https://hdl.handle.net/10356/153662 10.1103/PhysRevLett.127.183602 34767425 2-s2.0-85118403373 18 127 183602 en QEP-P4 MOE2017-T2-2-066 RG80/20 Physical Review Letters © 2021 American Physical Society. All rights reserved. This paper was published in Physical Review Letters and is made available with permission of American Physical Society. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Physics
States
Entanglement
spellingShingle Science::Physics
States
Entanglement
Xin, Mingjie
Leong, Wui Seng
Chen, Zilong
Wang, Yu
Lan, Shau-Yu
Rapid quantum squeezing by jumping the harmonic oscillator frequency
description Quantum sensing and quantum information processing use quantum advantages such as squeezed states that encode a quantity of interest with higher precision and generate quantum correlations to outperform classical methods. In harmonic oscillators, the rate of generating squeezing is set by a quantum speed limit. Therefore, the degree to which a quantum advantage can be used in practice is limited by the time needed to create the state relative to the rate of unavoidable decoherence. Alternatively, a sudden change of harmonic oscillator's frequency projects a ground state into a squeezed state which can circumvent the time constraint. Here, we create squeezed states of atomic motion by sudden changes of the harmonic oscillation frequency of atoms in an optical lattice. Building on this protocol, we demonstrate rapid quantum amplification of a displacement operator that could be used for detecting motion. Our results can speed up quantum gates and enable quantum sensing and quantum information processing in noisy environments.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Xin, Mingjie
Leong, Wui Seng
Chen, Zilong
Wang, Yu
Lan, Shau-Yu
format Article
author Xin, Mingjie
Leong, Wui Seng
Chen, Zilong
Wang, Yu
Lan, Shau-Yu
author_sort Xin, Mingjie
title Rapid quantum squeezing by jumping the harmonic oscillator frequency
title_short Rapid quantum squeezing by jumping the harmonic oscillator frequency
title_full Rapid quantum squeezing by jumping the harmonic oscillator frequency
title_fullStr Rapid quantum squeezing by jumping the harmonic oscillator frequency
title_full_unstemmed Rapid quantum squeezing by jumping the harmonic oscillator frequency
title_sort rapid quantum squeezing by jumping the harmonic oscillator frequency
publishDate 2022
url https://hdl.handle.net/10356/153662
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