Detailed Information on Publication Record
2002
EnEtanglement by a beamsplitter: Nonclassicality as a prerequisite for entanglement
KIM, Myungshik, W. SON, Vladimír BŮŽEK and Peter KNIGHTBasic information
Original name
EnEtanglement by a beamsplitter: Nonclassicality as a prerequisite for entanglement
Authors
KIM, Myungshik (410 Republic of Korea), W. SON (410 Republic of Korea), Vladimír BŮŽEK (703 Slovakia, guarantor) and Peter KNIGHT (826 United Kingdom of Great Britain and Northern Ireland)
Edition
Physical Review A, New York, American Physical Society, 2002, 1050-2947
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10301 Atomic, molecular and chemical physics
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 2.986
RIV identification code
RIV/00216224:14330/02:00007537
Organization unit
Faculty of Informatics
Keywords in English
quantum information; entanglement; linear optical elements
Změněno: 11/2/2003 11:13, prof. RNDr. Vladimír Bužek, DrSc.
Abstract
V originále
A beam splitter is a simple, readily available device which can act to entangle the output optical fields. We show that a necessary condition for the fields at the output of the beam splitter to be entangled is that the pure input states exhibit nonclassical behavior. We generalize this proof for arbitrary (pure or impure) Gaussian input states. Specifically, nonclassicality of the input Gaussian fields is a necessary condition for entanglement of the field modes with the help of the beam splitter. We conjecture that this is a general property of the beam splitter: Nonclassicality of the inputs is a necessary condition for entangling fields in the beam splitter.
Links
| GA201/98/0369, research and development project |
| ||
| MSM 143300001, plan (intention) |
|