Schemes for robust quantum computation with polar molecules

Details Schemes for robust quantum computation with polar molecules Schemes for robust quantum computation with polar molecules

2006-02-02

arxiv.org/abs/quant-ph/0602030v2

Physics

Quantum Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevA.74.050301

We propose to use a new platform - ultracold polar molecules - for quantum computing with switchable interactions. The on/off switch is accomplished by selective excitation of one of the "0" or "1" qubits - long-lived molecular states - to an "excited" molecular state with a considerably different dipole moment. We describe various schemes based on this switching of dipolar interactions where the selective excitation between ground and excited states is accomplished via optical, micro-wave, or electric fields. We also generalize the schemes to take advantage of the dipole blockade mechanism when dipolar interactions are very strong. These schemes can be realized in several recently proposed architectures.

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