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Nonadiabatic geometric phase induced by a counterpart of the Stark shift | | E. I. Duzzioni
; C. J. Villas-Boas
; S. S. Mizrahi
; M. H. Y. Moussa
; R. M. Serra
; | | Date: |
13 Jul 2004 | | Journal: | Europhysics Letters 72, 21 (2005) DOI: 10.1209/epl/i2005-10209-9 | | Subject: | quant-ph | | Abstract: | We analyse the geometric phase due to the Stark shift in a system composed of a bosonic field, driven by time-dependent linear amplification, interacting dispersively with a two-level (fermionic) system. We show that a geometric phase factor in the joint state of the system, which depends on the fermionic state (resulting form the Stark shift), is introduced by the amplification process. A clear geometrical interpretation of this phenomenon is provided. We also show how to measure this effect in an interferometric experiment and to generate geometric "Schrodinger cat"-like states. Finally, considering the currently available technology, we discuss a feasible scheme to control and measure such geometric phases in the context of cavity quantum electrodynamics. | | Source: | arXiv, quant-ph/0407093 | | Services: | Forum | Review | PDF | Favorites | |
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