TACHYONS AND INFORMATION-TRANSFER IN QUANTIZED PARAMETRIC-AMPLIFIERS

Authors
KURIZKI G KOZHEKIN A KOFMAN AG
Citation
G. Kurizki et al., TACHYONS AND INFORMATION-TRANSFER IN QUANTIZED PARAMETRIC-AMPLIFIERS, Europhysics letters, 42(5), 1998, pp. 499-504
Citations number
19
Categorie Soggetti
Physics
Journal title
Europhysics letters → ACNP
ISSN journal
02955075
Volume
42
Issue
5
Year of publication
1998
Pages
499 - 504
Database
ISI
SICI code
0295-5075(1998)42:5<499:TAIIQP>2.0.ZU;2-C
Abstract
We show that the injection of spectrally narrow probe wave packets int o quantized parametrically amplifying media can give rise to transient tachyonic wave packets. Remarkably, their quantum information, albeit causal, is confined to times corresponding to superluminal velocities , which is advantageous for communications. These phenomena are explic itly analyzed for stimulated Raman scattering, parametric down-convers ion and four-wave mixing.