Gravitational effects on entangled states and interferometer with entangled atoms

Authors
von Borzeszkowski, H Mensky, MB
Citation
H. Von Borzeszkowski et Mb. Mensky, Gravitational effects on entangled states and interferometer with entangled atoms, PHYS LETT A, 286(2-3), 2001, pp. 102-106
Citations number
11
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
03759601 → ACNP
Volume
286
Issue
2-3
Year of publication
2001
Pages
102 - 106
Database
ISI
SICI code
0375-9601(20010723)286:2-3<102:GEOESA>2.0.ZU;2-P
Abstract
It is discussed how systems of quantum-correlated (entangled) particles or atoms behave in external gravitational fields and what gravitational effect s may exist in such systems. An experimental setup is proposed which improv es the sensitivity of the Ramsey interferometer by the usage of quantum-cor related atoms. Entanglement of n atoms improves the sensitivity to small ph ase shifts in n(2) times. This scheme may be used for observing gravity-ind uced phase shifts in laboratory. (C) 2001 Elsevier Science B.V. All rights reserved.