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 analyze a multilevel atom interacting with a broadband 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 also propose a scheme to measure such a geometric phase by means of a suitable polarization detection.
Carollo, A., Palma, G.M., Łozinski, A., Santos, M.F., Vedral, V. (2006). Geometric phase induced by a cyclically evolving squeezed vacuum reservoir. PHYSICAL REVIEW LETTERS, 96(15), 1-4 [10.1103/PhysRevLett.96.150403].
Geometric phase induced by a cyclically evolving squeezed vacuum reservoir
Carollo, Angelo;PALMA, Gioacchino Massimo;
2006-01-01
Abstract
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 analyze a multilevel atom interacting with a broadband 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 also propose a scheme to measure such a geometric phase by means of a suitable polarization detection.File | Dimensione | Formato | |
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