Quasienergy anholonomy and its application to adiabatic quantum state manipulation

Details Quasienergy anholonomy and its application to adiabatic quantum state manipulation Quasienergy anholonomy and its application to adiabatic quantum state manipulation

2007-04-17

arxiv.org/abs/0704.2117v1

Phys. Rev. Lett. 98, 160407 (2007)

Physics

Quantum Physics

10pages, 1figure. To be published in Phys. Rev. Lett.

Scientific paper

10.1103/PhysRevLett.98.160407

The parametric dependence of a quantum map under the influence of a rank-1 perturbation is investigated. While the Floquet operator of the map and its spectrum have a common period with respect to the perturbation strength $\lambda$, we show an example in which none of the quasienergies nor the eigenvectors obey the same period: After a periodic increment of $\lambda$, the quasienergy arrives at the nearest higher one, instead of the initial one, exhibiting an anholonomy, which governs another anholonomy of the eigenvectors. An application to quantum state manipulations is outlined.

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