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Entanglement energetics in the ground state

Contributors

Jordan, Andrew N.; Buttiker, Markus

Published in

Journal of modern optics, vol. 51, no. 16-18, p. 2405-2414

Publication date

2004

Abstract

We show how many-body ground state entanglement information may be extracted from sub-system energy measurements at zero temperature. A precise relation between entanglement and energy fluctuations is demonstrated in the weak coupling limit. Examples are given with the two-state system and the harmonic oscillator, and energy probability distributions are calculated. Comparisons made with recent qubit experiments show this type of measurement provides another method to quantify entanglement with the environment.

Keywords

  • Theoretical study
  • Thermodynamic analysis
  • Probability distribution
  • Energy distribution
  • Weak coupling
  • Harmonic oscillators
  • Information extraction
  • Quantum information
  • N-body problems
  • Ground states
  • Entangled states
  • Quantum entanglement

UNIGE affiliation entities

Citation (ISO format)

JORDAN, Andrew N., BUTTIKER, Markus. Entanglement energetics in the ground state. In: Journal of modern optics, 2004, vol. 51, n° 16-18, p. 2405–2414. doi: 10.1080/09500340412331286720

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Additional URL for this publication

http://web.ebscohost.com/ehost/detail?vid=3&hid=13&sid=f22e1bdc-9830-4217-a77e-802b183eee98%40sessionmgr111&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=buh&AN=15791559

Journal ISSN

0950-0340
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819downloads

Technical informations

Creation

30/11/2009 15:07:00

First validation

30/11/2009 15:07:00

Update

14/03/2023 15:17:59

Status update

14/03/2023 15:17:59

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