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Optimal pumping of orbital entanglement with single-particle emitters

Sherkunov, Y.; d'Ambrumenil, N.; Samuelsson, Peter LU and Buettiker, M. (2012) In Physical Review B (Condensed Matter and Materials Physics) 85(8).
Abstract
We propose a method for the optimal time-controlled generation of entangled itinerant particles, using on-demand sources in a conductor in the quantum Hall regime. This entanglement pump is realized by applying periodic, tailored voltage pulses to pairs of quantum dots or quantum point contacts. We show that the pump can produce orbital Bell pairs of both electrons and holes at the optimal rate of half a pair per pumping cycle. The entanglement can be detected by a violation of a Bell inequality formulated in terms of low-frequency current cross correlations.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
85
issue
8
publisher
American Physical Society
external identifiers
  • wos:000300831900001
  • scopus:84857769023
ISSN
1098-0121
DOI
10.1103/PhysRevB.85.081108
language
English
LU publication?
yes
id
eb029af6-e004-4d15-81a9-14c105727b22 (old id 2383323)
date added to LUP
2012-03-30 14:42:16
date last changed
2017-09-10 04:02:21
@article{eb029af6-e004-4d15-81a9-14c105727b22,
  abstract     = {We propose a method for the optimal time-controlled generation of entangled itinerant particles, using on-demand sources in a conductor in the quantum Hall regime. This entanglement pump is realized by applying periodic, tailored voltage pulses to pairs of quantum dots or quantum point contacts. We show that the pump can produce orbital Bell pairs of both electrons and holes at the optimal rate of half a pair per pumping cycle. The entanglement can be detected by a violation of a Bell inequality formulated in terms of low-frequency current cross correlations.},
  articleno    = {081108},
  author       = {Sherkunov, Y. and d'Ambrumenil, N. and Samuelsson, Peter and Buettiker, M.},
  issn         = {1098-0121},
  language     = {eng},
  number       = {8},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Optimal pumping of orbital entanglement with single-particle emitters},
  url          = {http://dx.doi.org/10.1103/PhysRevB.85.081108},
  volume       = {85},
  year         = {2012},
}