Coherent control of localization, entanglement, and state superpositions in a double quantum dot with two electros.

G. E. MURGIDA; D. A. WISNIACKI; P. I. TAMBORENEA

PHYSICAL REVIEW B - CONDENSED MATTER AND MATERIALS PHYSICS

APS

Lugar: New York; Año: 2009 vol. 79 p. 353261 - 353266

0163-1829

We have recently proposed a quantum control method based on the knowledge of  the energy spectrum as a function of an external control parameter  [Phys. Rev. Lett. {f 99}, 036806 (2007)]. So far, our method has been applied to connect the ground state to target states that were in all cases energy eigenstates. In this paper we extend that method in order to obtain more general  target states, working, for concreteness, with a system of two interacting  electrons confined in semiconductor double quantum wells. Namely, we have shown that the same basic method can be employed to obtain localization, entanglement, and general superpositions of eigenstates  of the system.