Unconventional geometric quantum computation

Abstract

We propose a new class of unconventional geometric gates involving nonzero dynamic phases, and elucidate that geometric quantum computation can be implemented by using these gates. Comparing with the conventional geometric gate operation, in which the dynamic phase shift must be removed or avoided, the gates proposed here may be operated more simply. We illustrate in detail that unconventional nontrivial two-qubit geometric gates with built-in fault tolerant geometric features can be implemented in real physical systems.

4 pages

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• Preparation of entanglement between atoms in spatially separated cavities via fiber loss
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• Implementation of local and high-fidelity quantum conditional phase gates in a scalable two-dimensional ion trap
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