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Nature Research, Scientific Reports, 1(4), 2014

DOI: 10.1038/srep06814

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Universal Nonadiabatic Geometric Gates in Two-Qubit Decoherence-Free Subspaces

Journal article published in 2014 by Guofu Xu, Guilu Long ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Geometric quantum computation in decoherence-free subspaces is of great practical importance because it can protect quantum information from both control errors and collective dephasing. However, previous proposed schemes have either states leakage or four-body interactions problems. Here, we propose a feasible scheme without these two problems. Our scheme is realized in two-qubit decoherence-free subspaces. Since the Hamiltonian we use is generic, our scheme looks promising to be demonstrated experimentally in different systems, including superconducting charge qubits.