Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2009-02-01

Journal: PHYSICAL REVIEW A

Included Journals: Scopus、EI、SCIE

Volume: 79

Issue: 2

ISSN: 1050-2947

Key Words: Berry phase; feedback; geometry; quantum computing

Abstract: The effect of feedback on a two-level dissipative system is studied in this paper. The results show that it is possible to control the phase in the open system even if its state cannot be manipulated from an arbitrary initial one to an arbitrary final one. The dependence of the geometric phase on the control parameters is calculated and discussed.