A scalable quantum computer with an ultranarrow optical transition of ultracold neutral atoms in an optical lattice

Details A scalable quantum computer with an ultranarrow optical transition of ultracold neutral atoms in an optical lattice A scalable quantum computer with an ultranarrow optical transition of ultracold neutral atoms in an optical lattice

2009-04-29

arxiv.org/abs/0904.4523v1

Physics

Quantum Physics

6 pages, 6 figures

Scientific paper

We propose a new quantum-computing scheme using ultracold neutral ytterbium atoms in an optical lattice. The nuclear Zeeman sublevels define a qubit. This choice avoids the natural phase evolution due to the magnetic dipole interaction between qubits. The Zeeman sublevels with large magnetic moments in the long-lived metastable state are also exploited to address individual atoms and to construct a controlled-multiqubit gate. Estimated parameters required for this scheme show that this proposal is scalable and experimentally feasible.

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