Vacuum induced spin-1/2 Berry's phase.

Journal article

We calculate the Berry phase of a spin-1/2 particle in a magnetic field considering the quantum nature of the field. The phase reduces to the standard Berry phase in the semiclassical limit and the eigenstate of the particle acquires a phase in the vacuum. We also show how to generate a vacuum induced Berry phase considering two quantized modes of the field which has an interesting physical interpretation.

Authors: Fuentes-Guridi, I; Carollo, A; Bose, S; Vedral, V

• Publication status: Published
• Journal: Physical Review Letters
• Volume: 89
• Issue: 22
• Pages: 220404
• Publication date: 2002-11-01
• DOI: 10.1103/physrevlett.89.220404
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English