Copying of quantum information by means of a quantum amplifier

Autor: Victor N. Zadkov, Denis Sych, Boris A. Grishanin
Rok vydání: 2005
Předmět:
Zdroj: Laser Physics Letters. 3:102-105
ISSN: 1612-202X
1612-2011
DOI: 10.1002/lapl.200510049
Popis: Information aspects of copying quantum states via stimulated emission of an optical quantum amplifier are considered. It is shown that the measurable information very rapidly decreases after amplification of a single photon up to a level of several photons. Spontaneous emission, which leads to such behavior, is also discussed.
Databáze: OpenAIRE