Optimal Spin-Entangled Electron-Hole Pair Pump

C. W. J. Beenakker, M. Titov, and B. Trauzettel
Phys. Rev. Lett. 94, 186804 – Published 10 May 2005

Abstract

A nonperturbative theory is presented for the creation by an oscillating potential of spin-entangled electron-hole pairs in the Fermi sea. In the weak potential limit, considered earlier by Samuelsson and Büttiker, the entanglement production is much less than 1 bit per cycle. We demonstrate that a strong potential oscillation can produce an average of one Bell pair per two cycles, making it an efficient source of entangled flying qubits.

  • Figure
  • Received 2 February 2005

DOI:https://doi.org/10.1103/PhysRevLett.94.186804

©2005 American Physical Society

Authors & Affiliations

C. W. J. Beenakker1, M. Titov2, and B. Trauzettel1

  • 1Instituut-Lorentz, Universiteit Leiden, P.O. Box 9506, 2300 RA Leiden, The Netherlands
  • 2Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Strasse 38, 01187 Dresden, Germany

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 94, Iss. 18 — 13 May 2005

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×