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Using quantum state protection via dissipation in a quantum-dot molecule to solve the Deutsch problem

2012; American Physical Society; Volume: 85; Issue: 3 Linguagem: Inglês

10.1103/physreva.85.032323

ISSN

1538-4446

Autores

M. M. Santos, F. O. Prado, H. S. Borges, A. M. Alcalde, J. M. Villas-Bôas, Eduardo I. Duzzioni,

Tópico(s)

Semiconductor Quantum Structures and Devices

Resumo

The wide set of control parameters and reduced size scale make semiconductor quantum dots attractive candidates to implement solid-state quantum computation. Considering an asymmetric double quantum dot coupled by tunneling, we combine the action of a laser field and the spontaneous emission of the excitonic state to protect an arbitrary superposition state of the indirect exciton and ground state. As a by-product we show how to use the protected state to solve the Deutsch problem.

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