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Entanglement Generation by a Three-Dimensional Qubit Scattering: Concurrence vs. Path (In)Distinguishability

  • Yasser Omar
  • Yuichiro Hida
  • Hiromichi Nakazato
  • Kazuya Yuasa
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 36)

Abstract

A scheme for generating an entangled state in a two spin-1/2 system by means of a spin-dependent potential scattering of another qubit is presented and analyzed in three dimensions. The entanglement is evaluated in terms of the concurrence both at the lowest and in full order in perturbation with an appropriate renormalization for the latter, and its characteristics are discussed in the context of (in)distinguishability of alternative paths for a quantum particle.

Keywords

Entanglement scattering quantum indistinguishability renormalization 

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Copyright information

© ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering 2010

Authors and Affiliations

  • Yasser Omar
    • 1
    • 2
  • Yuichiro Hida
    • 3
  • Hiromichi Nakazato
    • 3
  • Kazuya Yuasa
    • 4
  1. 1.CEMAPRE, ISEGUniversidade Técnica de LisboaLisbonPortugal
  2. 2.SQIGInstituto de TelecomunicaçõesLisbonPortugal
  3. 3.Department of PhysicsWaseda UniversityTokyoJapan
  4. 4.Waseda Institute for Advanced StudyWaseda UniversityTokyoJapan

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