Schemes for robust quantum computation with polar molecules

Abstract

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.

4 pages, 4 figures

References in corpus (2)

• Approaching Unit Visibility for Control of a Superconducting Qubit with Dispersive Readout
• Quantum Computation with Diatomic Bits in Optical Lattices

Cited by in corpus (6)

• A High Phase-Space-Density Gas of Polar Molecules
• Giant formation rates of ultracold molecules via Feshbach Optimized Photoassociation
• Quantum computing with a single molecular ensemble and a Cooper pair box
• Structure and melting behavior of classical bilayer crystals of dipoles
• Comparative study of the rovibrational properties of heteronuclear alkali dimers in electric fields
• Formation of Ultracold Heteronuclear Dimers in Electric Fields