A Berry phase can be added to the wave function of an isolated quantum dot by adiabatically modulating a nonuniform orthogonal electric field along a time cycle. The dot is tuned close to a three-level degeneracy, which provides a wide range of possibilities of control. We propose to detect the accumulated phase by capacitively coupling the dot to a double-path interferometer. The effective Hamiltonian for the phase sensitive coupling is discussed in detail.
Adiabatic Control of the Electron Phase in a Quantum Dot
GIULIANO, Domenico;
2003-01-01
Abstract
A Berry phase can be added to the wave function of an isolated quantum dot by adiabatically modulating a nonuniform orthogonal electric field along a time cycle. The dot is tuned close to a three-level degeneracy, which provides a wide range of possibilities of control. We propose to detect the accumulated phase by capacitively coupling the dot to a double-path interferometer. The effective Hamiltonian for the phase sensitive coupling is discussed in detail.File in questo prodotto:
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