Decoherence-free manipulation of photonic memories for quantum computation

Abstract

We present a protocol to construct an arbitrary quantum circuit. The quantum bits (qubits) are encoded in polarisation states of single photons. They are stored in spatially separated dense media deposed in an optical cavity. Specific sequences of pulses address individually the storage media to encode the qubits and to implement a universal set of gates. The proposed protocol is decoherence-free in the sense that spontaneous emission and cavity damping are avoided. We discuss a coupling scheme for experimental implementation in Neon atoms.

5 pages, 4 figures, submitted to Phys. Rev

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• Geometric Manipulation of Trapped Ions for Quantum Computation
• Qubit Rotation by STIRAP
• Fast SWAP gate by adiabatic passage
• A geometric phase gate without dynamical phases
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Cited by in corpus (1)

• Decoherence-free linear quantum subsystems