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Discrete quantum Fourier transform in coupled semiconductor double quantum dot molecules

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arxiv 0704.2091 v2 pith:POV4YJ4V submitted 2007-04-17 quant-ph

Discrete quantum Fourier transform in coupled semiconductor double quantum dot molecules

classification quant-ph
keywords quantumcoupleddiscretedoublefourierschemesemiconductorsystem
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In this Letter, we present a physical scheme for implementing the discrete quantum Fourier transform in a coupled semiconductor double quantum dot system. The main controlled-R gate operation can be decomposed into many simple and feasible unitary transformations. The current scheme would be a useful step towards the realization of complex quantum algorithms in the quantum dot system.

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