ISSN:
1434-6079
Keywords:
PACS. 03.65.Bz Foundations, theory of measurement, miscellaneous theories (including Aharonov-Bohm effect, Bell inequalities, Berry's phase) – 03.75.Fi Phase coherent atomic ensembles; quantum condensation phenomena – 42.50.Ct Quantum description of interaction of light and matter; related experiments
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: We propose a method to create macroscopic superpositions, so-called Schrödinger cat states, of different motional states of an ideal Bose-Einstein condensate. The scheme is based on the scattering of a freely expanding condensate by the light field of a high-finesse optical cavity in a quantum superposition state of different photon numbers. The atom-photon interaction creates an entangled state of the motional state of the condensate and the photon number, which can be converted into a pure atomic Schrödinger cat state by operations only acting on the cavity field. We discuss in detail the fully quantised theory and propose an experimental procedure to implement the scheme using short coherent light pulses.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100530170277
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