UNIGE document Scientific Article
previous document  unige:4197  next document
add to browser collection

Entanglement energetics in the ground state

Jordan, Andrew N.
Published in Journal of Modern Optics. 2004, vol. 51, no. 16-18, p. 2405-2414
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 studyThermodynamic analysisProbability distributionEnergy distributionWeak couplingHarmonic oscillatorsInformation extractionQuantum informationN-body problemsGround statesEntangled statesQuantum entanglement
Full text
(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. https://archive-ouverte.unige.ch/unige:4197

158 hits



Deposited on : 2009-11-30

Export document
Format :
Citation style :