Non-destructively probing the thermodynamics of quantum systems with qumodes
Quantum systems are by their very nature fragile. The fundamental backaction on a state due to quantum measurement notwithstanding, there is also in practice often a destruction of the system itself due to the means of measurement. This becomes acutely problematic when we wish to make measurement...
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sg-ntu-dr.10356-1718812023-11-20T15:34:38Z Non-destructively probing the thermodynamics of quantum systems with qumodes Elliott, Thomas J. Gu, Mile Thompson, Jayne Liu, Nana School of Physical and Mathematical Sciences Centre for Quantum Technologies, NUS MajuLab, CNRS-UNS-NUS-NTU International Joint Research Unit, UMI 3654 Science::Physics Quantum Systems Qumodes Quantum systems are by their very nature fragile. The fundamental backaction on a state due to quantum measurement notwithstanding, there is also in practice often a destruction of the system itself due to the means of measurement. This becomes acutely problematic when we wish to make measurements of the same system at multiple times, or generate a large quantity of measurement statistics. One approach to circumventing this is the use of ancillary probes that couple to the system under investigation, and through their interaction, enable properties of the primary system to be imprinted onto and inferred from the ancillae. Here we highlight means by which continuous variable quantum modes (qumodes) can be employed to probe the thermodynamics of quantum systems in and out of equilibrium, including thermometry, reconstruction of the partition function, and reversible and irreversible work. We illustrate application of our results with the example of a spin-1/2 system in a transverse field. Agency for Science, Technology and Research (A*STAR) Ministry of Education (MOE) National Research Foundation (NRF) Published version The authors acknowledge financial support from Grant Nos. FQXi-RFP-1809 and FQXi-RFP-IPW-1903 from the Foundational Questions Institute and Fetzer Franklin Fund (a donor advised fund of Silicon Valley Community Foundation), the University of Manchester Dame Kathleen Ollerenshaw Fellowship, the Imperial College Borland Fellowship in Mathematics, the Singapore Ministry of Education Tier 2 Grant No. MOE-T2EP50221-0005, the Singapore Ministry of Education Tier 1 Grant No. RG77/22, and the National Research Foundation, Singapore, and Agency for Science, Technology and Research (A*STAR) under its QEP2.0 programme (No. NRF2021- QEP2-02-P06), and funding from the Science and Technology Program of Shanghai, China (No. 21JC1402900). 2023-11-14T08:11:12Z 2023-11-14T08:11:12Z 2023 Journal Article Elliott, T. J., Gu, M., Thompson, J. & Liu, N. (2023). Non-destructively probing the thermodynamics of quantum systems with qumodes. AVS Quantum Science, 5(3), 034402-1-034402-8. https://dx.doi.org/10.1116/5.0139099 2639-0213 https://hdl.handle.net/10356/171881 10.1116/5.0139099 2-s2.0-85171258712 3 5 034402-1 034402-8 en MOE-T2EP50221-0005 RG77/22 NRF2021-QEP2-02-P06 AVS Quantum Science © 2023 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). application/pdf |
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Science::Physics Quantum Systems Qumodes Elliott, Thomas J. Gu, Mile Thompson, Jayne Liu, Nana Non-destructively probing the thermodynamics of quantum systems with qumodes |
description |
Quantum systems are by their very nature fragile. The fundamental backaction
on a state due to quantum measurement notwithstanding, there is also in
practice often a destruction of the system itself due to the means of
measurement. This becomes acutely problematic when we wish to make measurements
of the same system at multiple times, or generate a large quantity of
measurement statistics. One approach to circumventing this is the use of
ancillary probes that couple to the system under investigation, and through
their interaction, enable properties of the primary system to be imprinted onto
and inferred from the ancillae. Here we highlight means by which continuous
variable quantum modes (qumodes) can be employed to probe the thermodynamics of
quantum systems in and out of equilibrium, including thermometry,
reconstruction of the partition function, and reversible and irreversible work.
We illustrate application of our results with the example of a spin-1/2 system
in a transverse field. |
author2 |
School of Physical and Mathematical Sciences |
author_facet |
School of Physical and Mathematical Sciences Elliott, Thomas J. Gu, Mile Thompson, Jayne Liu, Nana |
format |
Article |
author |
Elliott, Thomas J. Gu, Mile Thompson, Jayne Liu, Nana |
author_sort |
Elliott, Thomas J. |
title |
Non-destructively probing the thermodynamics of quantum systems with qumodes |
title_short |
Non-destructively probing the thermodynamics of quantum systems with qumodes |
title_full |
Non-destructively probing the thermodynamics of quantum systems with qumodes |
title_fullStr |
Non-destructively probing the thermodynamics of quantum systems with qumodes |
title_full_unstemmed |
Non-destructively probing the thermodynamics of quantum systems with qumodes |
title_sort |
non-destructively probing the thermodynamics of quantum systems with qumodes |
publishDate |
2023 |
url |
https://hdl.handle.net/10356/171881 |
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1783955567183659008 |