Spin-based quantum information processing with semiconductor quantum dots and cavity QED

Abstract

A quantum information processing scheme is proposed with semiconductor quantum dots located in a high-Q single mode QED cavity. The spin degrees of freedom of one excess conduction electron of the quantum dots are employed as qubits. Excitonic states, which can be produced ultrafastly with optical operation, are used as auxiliary states in the realization of quantum gates. We show how properly tailored ultrafast laser pulses and Pauli-blocking effects, can be used to achieve a universal encoded quantum computing.

RevTex, 2 figures

References in corpus (3)

• Electro-optical properties of semiconductor quantum dots: Application to quantum information processing
• Reducing Constraints on Quantum Computer Design by Encoded Selective Recoupling
• Quantum Computing with Quantum Dots on Linear Supports

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