Quantum Computing on Multi-atomic Ensembles in Quantum Electrodynamics Cavity

Details Quantum Computing on Multi-atomic Ensembles in Quantum Electrodynamics Cavity Quantum Computing on Multi-atomic Ensembles in Quantum Electrodynamics Cavity

2011-11-14

arxiv.org/abs/1111.3133v1

Physics

Quantum Physics

6 pages, 1 figure

Scientific paper

We propose an effective realization of a complete set of elementary quantum gates in the solid-state quantum computer based on the multi-atomic coherent (MAC-) ensembles in the QED cavity. Here, we use the two-ensemble qubit encoding and swapping-based operations that together provide implementation of any encoded single-qubit operation by three elementary gates and the encoded controlled-NOT operation is performed in a single step. This approach simplifies a physical realization of universal quantum computing and adds the immunity to a number of errors. We also demonstrate that the proposed architecture of quantum computer satisfies DiVincenzo criteria.

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