Geometric phase induced by a cyclically evolving squeezed vacuum reservoir

Details Geometric phase induced by a cyclically evolving squeezed vacuum reservoir Geometric phase induced by a cyclically evolving squeezed vacuum reservoir

2005-07-11

arxiv.org/abs/quant-ph/0507101v2

Phys. Rev. Lett. 96, 150403 (2006)

Physics

Quantum Physics

4 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.96.150403

We propose a new way to generate an observable geometric phase by means of a completely incoherent phenomenon. We show how to imprint a geometric phase to a system by "adiabatically" manipulating the environment with which it interacts. As a specific scheme we analyse a multilevel atom interacting with a broad-band squeezed vacuum bosonic bath. As the squeezing parameters are smoothly changed in time along a closed loop, the ground state of the system acquires a geometric phase. We propose also a scheme to measure such geometric phase by means of a suitable polarization detection.

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