Abstract

The emergence of Quantum Optics, in the second half of the 20^th century, was closely related to landmark experiments, which were permitted by the development of single photon detection and correlation measurements. Photon correlation techniques allowed experimentalists to demonstrate effects closely linked to two-photon amplitudes interference with entangled states, a phenomenon emblematic of the second quantum revolution. In the Atom Optics group at Institut d'Optique, we revisit these experiments with photons replaced by metastable Helium atoms, which can be detected individually. After the Hanbury Brown Twiss and the Hong Ou Mandel experiments, we aim at realizing a test of Bell's inequalities with atoms entangled in momentum, i.e., in external degrees of freedom sensitive to mass.

© 2019 The Author(s)