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Phys Chem Chem Phys. 2011 Oct 14;13(38):17115-21. doi: 10.1039/c1cp21476d. Epub 2011 Aug 24.

Rydberg atom mediated polar molecule interactions: a tool for molecular-state conditional quantum gates and individual addressability.

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  • 1Department of Physics, University of Connecticut, Storrs, CT 06269, USA. lenak@phys.uconn.edu

Abstract

We study the possibility to use interaction between a polar molecule in the ground electronic and vibrational state and a Rydberg atom to construct two-qubit gates between molecular qubits and to coherently control molecular states. A polar molecule within the electron orbit in a Rydberg atom can either shift the Rydberg state, or form a Rydberg molecule. Both the atomic shift and the Rydberg molecule states depend on the initial internal state of the polar molecule, resulting in molecular state dependent van der Waals or dipole-dipole interaction between Rydberg atoms. Rydberg atoms mediated interaction between polar molecules can be enhanced up to 10(3) times. We describe how the coupling between a polar molecule and a Rydberg atom can be applied to coherently control molecular states, and specifically, to individually address molecules in an optical lattice, and to non-destructively readout molecular qubits.

PMID:
21869969
[PubMed]
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