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 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