Quantum computation with trapped polar molecules

Details Quantum computation with trapped polar molecules Quantum computation with trapped polar molecules

2001-09-18

arxiv.org/abs/quant-ph/0109083v2

Physics

Quantum Physics

4 pages, RevTeX 4, 2 figures. Edited for length and converted to RevTeX, but no substantial changes from earlier pdf version

Scientific paper

10.1103/PhysRevLett.88.067901

We propose a novel physical realization of a quantum computer. The qubits are electric dipole moments of ultracold diatomic molecules, oriented along or against an external electric field. Individual molecules are held in a 1-D trap array, with an electric field gradient allowing spectroscopic addressing of each site. Bits are coupled via the electric dipole-dipole interaction. Using technologies similar to those already demonstrated, this design can plausibly lead to a quantum computer with $\gtrsim 10^4$ qubits, which can perform $\sim 10^5$ CNOT gates in the anticipated decoherence time of $\sim 5$ s.

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