Nonequilibrium work and entropy production by quantum projective measurements

Cited 12 time in webofscience Cited 0 time in scopus
  • Hit : 283
  • Download : 114
We study the thermodynamic notion of quantum projective measurements, using a framework for the fluctuation theorem of nonequilibrium work. The energy change induced by measurements satisfies the Jarzynski equality, leading us to the interpretation that the quantum projective measurements perform nonequilibrium work on the measured system. The work average exhibits intriguing limiting behaviors due to the heat-up effect caused by repeated measurements and the quantum Zeno effect caused by measurements of an infinite frequency. If the measured system relaxes back to its initial equilibrium state, the work is completely dissipated in the form of heat into a reservoir. The corresponding entropy increase in the reservoir is shown to be not less than the von Neumann entropy change generated during the course of the measurements, proving Landauer's principle.
Publisher
AMER PHYSICAL SOC
Issue Date
2013-09
Language
English
Article Type
Article
Citation

PHYSICAL REVIEW E, v.88, no.3

ISSN
1539-3755
DOI
10.1103/PhysRevE.88.032105
URI
http://hdl.handle.net/10203/201328
Appears in Collection
NT-Journal Papers(저널논문)
Files in This Item
000323920700001.pdf(1.03 MB)Download
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 12 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0