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arXiv · 1203.4444

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

M. M. Santos·F. O. Prado·H. S. Borges·A. M. Alcalde·J. M. Villas-Bôas·E. I. Duzzioni
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Abstract

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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M. M. Santos, F. O. Prado, H. S. Borges, A. M. Alcalde, J. M. Villas-Bôas, E. I. Duzzioni. 2012-03-20. Using quantum state protection via dissipation in a quantum-dot molecule to solve the Deutsch problem. https://doi.org/10.1103/physreva.85.032323

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