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Area of Science:

  • Quantum Optics
  • Atomic Physics
  • Quantum Information

Background:

  • The Hong-Ou-Mandel effect demonstrates destructive quantum interference using indistinguishable bosons.
  • This effect has been limited to massless photons, hindering exploration with massive particles.

Purpose of the Study:

  • To propose and theoretically validate an experiment realizing the Hong-Ou-Mandel effect in the matter-wave regime.
  • To develop a novel measurement protocol for matter-wave interference, reducing experimental complexity.

Main Methods:

  • Utilizing pair-correlated atoms generated from colliding Bose-Einstein condensates.
  • Applying two laser-induced Bragg pulses to the atom pairs.
  • Developing a multimode matter-wave field measurement protocol to determine interference visibility.

Main Results:

  • Simulations predict a Hong-Ou-Mandel dip visibility of approximately 69% for the proposed experiment.
  • The proposed protocol bypasses the need for repeated measurements common in optical setups.

Conclusions:

  • The experiment offers a viable path to demonstrating quantum interference with massive particles.
  • This work paves the way for potential Bell inequality violations using massive particles in related setups.