QUANTUM PHASE AMPLIFICATION

Authors
DARIANO GM MACCHIAVELLO C STERPI N YUEN HP
Citation
Gm. Dariano et al., QUANTUM PHASE AMPLIFICATION, Physical review. A, 54(6), 1996, pp. 4712-4718
Citations number
16
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
54
Issue
6
Year of publication
1996
Pages
4712 - 4718
Database
ISI
SICI code
1050-2947(1996)54:6<4712:QPA>2.0.ZU;2-0
Abstract
A scheme for amplifying phase shifts is presented, based on ideal phot on number deamplification. For high-sensitivity measurements phase amp lification sizeably reduces the bit-error rate and enhances the mutual information retrieved from the measurement. Phase-coherent states pre serve their coherence under amplification, and achieve the best amplif ier performance.