Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Autonomous quantum clocks using athermal resources
Stockholm University, Nordic Institute for Theoretical Physics (Nordita). Stockholm University, Faculty of Science, Department of Physics.ORCID iD: 0000-0002-0475-2766
Number of Authors: 12023 (English)In: Physical Review Research, E-ISSN 2643-1564, Vol. 5, no 4, article id 043013Article in journal (Refereed) Published
Abstract [en]

Here we explore the possibility of precise time keeping in quantum systems using athermal resources. We show that quantum measurement engineered reservoirs can be used as athermal resources to drive the ticks of a quantum clock. Two- and three-level quantum systems act as transducers in our model, converting the quantum measurement-induced noise to produce a series of ticks. The ticking rate of the clock is maximized when the measured observable maximally noncommutes with the clock's Hamiltonian. We use the large deviation principle to characterize the statistics of observed ticks within a given time period and show that it can be sub-Poissonian—quantified by Mandel's Q parameter—alluding to the quantum nature of the clock. We discuss the accuracy and efficiency of the clock, and extend our framework to include hybrid quantum clocks fueled by both measurements, and thermal resources. We make comparisons to relatable recent proposals for quantum clocks, and discuss alternate device implementations harvesting the quantum measurement engineered nonequilibrium conditions, beyond the clock realization.

Place, publisher, year, edition, pages
2023. Vol. 5, no 4, article id 043013
National Category
Other Physics Topics
Identifiers
URN: urn:nbn:se:su:diva-223877DOI: 10.1103/PhysRevResearch.5.043013ISI: 001086518700003Scopus ID: 2-s2.0-85175022290OAI: oai:DiVA.org:su-223877DiVA, id: diva2:1813501
Available from: 2023-11-21 Created: 2023-11-21 Last updated: 2023-11-21Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

K. Manikandan, Sreekanth

Search in DiVA

By author/editor
K. Manikandan, Sreekanth
By organisation
Nordic Institute for Theoretical Physics (Nordita)Department of Physics
In the same journal
Physical Review Research
Other Physics Topics

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 128 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf