Relative phase for a quantum field interacting with a two-level system
Author(s) -
Alfredo Luis,
L. L. Sánchez-Soto
Publication year - 1997
Publication title -
physical review a
Language(s) - English
Resource type - Journals
eISSN - 1094-1622
pISSN - 1050-2947
DOI - 10.1103/physreva.56.994
Subject(s) - physics , rotation formalisms in three dimensions , operator (biology) , dipole , field (mathematics) , relative phase , phase (matter) , quantum , quantum mechanics , polar , electromagnetic field , quantum electrodynamics , pure mathematics , biochemistry , chemistry , geometry , mathematics , repressor , transcription factor , gene
Several quantum descriptions of the relative phase between an atomic dipole and a one-mode electromagnetic field are examined. Positive-operator measures for this variable are derived from dipole and field-phase formalisms. They are analyzed and compared with an operator defined by a polar decomposition. Some examples of time evolution are discussed
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom