RELATIVE PHASE FOR A QUANTUM-FIELD INTERACTING WITH A 2-LEVEL SYSTEM

Authors
LUIS A SANCHEZSOTO LL
Citation
A. Luis et Ll. Sanchezsoto, RELATIVE PHASE FOR A QUANTUM-FIELD INTERACTING WITH A 2-LEVEL SYSTEM, Physical review. A, 56(1), 1997, pp. 994-1006
Citations number
47
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
56
Issue
1
Year of publication
1997
Pages
994 - 1006
Database
ISI
SICI code
1050-2947(1997)56:1<994:RPFAQI>2.0.ZU;2-B
Abstract
Several quantum descriptions of the relative phase between an atomic d ipole and a one-mode electromagnetic field are examined. Positive-oper ator measures for this variable are derived from dipole and field-phas e formalisms. They are analyzed and compared with an operator defined by a polar decomposition. Some examples of time evolution are discusse d.