Complementarity and post-selection in an atomic double-slit interferometer

Bertúlio Lima Bernardo
  • 1 Departamento de Física, CCEN, Universidade Federal da Paraíba Caixa Postal 5008, 58059-900, João Pessoa, PB, Brazil
  • 2 Department of Physics, Harvard University Cambridge, Massachusetts, 02138, USA

Abstract

This paper analyzes, theoretically, an atomic double-slit interferometer in order to probe the extent to which complementary properties affect quantum interference. It is shown that if the energy eigenstates of a two-level atom are one-to-one correlated with its particle and wave behaviors, complementary phenomena can be measured simultaneously, indicating a reinterpretation of the complementarity principle. We also demonstrate that these complementary properties can be further distinguished by using a post-selection process.

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