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

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

2012-03-20

arxiv.org/abs/1203.4444v1

Phys. Rev. A 85, 032323 (2012)

Physics

Quantum Physics

8 pages, 1 figure, 2 tables

Scientific paper

10.1103/PhysRevA.85.032323

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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