Nonclassicality of states in quantum optics

Authors
Wunsche, A Dodonov, VV Man'ko, OV Man'ko, VI
Citation
A. Wunsche et al., Nonclassicality of states in quantum optics, FORTSCHR PH, 49(10-11), 2001, pp. 1117-1122
Citations number
18
Categorie Soggetti
Physics
Journal title
FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS
ISSN journal
00158208 → ACNP
Volume
49
Issue
10-11
Year of publication
2001
Pages
1117 - 1122
Database
ISI
SICI code
0015-8208(2001)49:10-11<1117:NOSIQO>2.0.ZU;2-J
Abstract
The nearest Hilbert-Schmidt distance of (pure) states to coherent states is discussed as a quantitative measure of nonclassicality of states in quantu m optics or quantum mechanics of harmonic oscillators. Fock states, squeeze d coherent states and finite superpositions of coherent states (Schrodinger cat states) are considered as examples. Some other approaches to nonclassi cality of states in quantum optics are shortly discussed.