Nonlocal de Broglie wavelength of a two-particle system

E. J. S. Fonseca, Zoltan Paulini, P. Nussenzveig, C. H. Monken, and S. Pádua
Phys. Rev. A 63, 043819 – Published 21 March 2001
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Abstract

We show that it is possible to associate a de Broglie wavelength with a composite system even when the constituent particles are separated spatially. The nonlocal de Broglie wavelength (λ/2) of a two-photon system separated spatially is measured with an appropriate detection system. The two-photon system is prepared in an entangled state in space-momentum variables. We propose that the same result can be obtained for a system of massive particles separated spatially in an entangled state in space-momentum variables.

  • Received 10 July 2000

DOI:https://doi.org/10.1103/PhysRevA.63.043819

©2001 American Physical Society

Authors & Affiliations

E. J. S. Fonseca1, Zoltan Paulini1, P. Nussenzveig2, C. H. Monken1, and S. Pádua1,3,*

  • 1Departamento de Física, Universidade Federal de Minas Gerais, Caixa Postal 702, Belo Horizonte, MG 30123-970, Brazil
  • 2Instituto de Física, Universidade de São Paulo, Caixa Postal 66318, São Paulo, SP 05315-970, Brazil
  • 3Dipartimento di Fisica, Università degli Studi di Roma “La Sapienza,” Roma, 00185, Italy

  • *Corresponding author. Email address: spadua@fisica.ufmg.br

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Issue

Vol. 63, Iss. 4 — April 2001

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