title: Implementation of adiabatic geometric gates with superconducting phase qubits.
abstract: We present an adiabatic geometric quantum computation strategy based on the non-degenerate energy eigenstates in (but not limited to) superconducting phase qubit systems. The fidelity of the designed quantum gate was evaluated in the presence of simulated thermal fluctuations in a superconducting phase qubits circuit and was found to be quite robust against random errors. In addition, it was elucidated that the Berry phase in the designed adiabatic evolution may be detected directly via the quantum state tomography developed for superconducting qubits. We also analyze the effects of control parameter fluctuations on the experimental detection of the Berry phase.
authors.affiliation: National Laboratory for Superconductivity, Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China.
authors.forename: Z H
authors.initials: ZH
authors.lastname: Peng
authors.forename: H F
authors.initials: HF
authors.lastname: Chu
authors.forename: Z D
authors.initials: ZD
authors.lastname: Wang
authors.forename: D N
authors.initials: DN
authors.lastname: Zheng