Holonomic quantum computation in the ultrastrong-coupling regime of circuit QED

Yimin Wang, Jiang Zhang, Chunfeng Wu, J. Q. You, and G. Romero
Phys. Rev. A 94, 012328 – Published 18 July 2016

Abstract

We present an experimentally feasible scheme to implement holonomic quantum computation in the ultrastrong-coupling regime of light-matter interaction. The large anharmonicity and the Z2 symmetry of the quantum Rabi model allow us to build an effective three-level Λ-structured artificial atom for quantum computation. The proposed physical implementation includes two gradiometric flux qubits and two microwave resonators where single-qubit gates are realized by a two-tone driving on one physical qubit, and a two-qubit gate is achieved with a time-dependent coupling between the field quadratures of both resonators. Our work paves the way for scalable holonomic quantum computation in ultrastrongly coupled systems.

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  • Received 19 May 2016

DOI:https://doi.org/10.1103/PhysRevA.94.012328

©2016 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & Technology

Authors & Affiliations

Yimin Wang1,2, Jiang Zhang1, Chunfeng Wu3, J. Q. You1,*, and G. Romero4

  • 1Quantum Physics and Quantum Information Division, Beijing Computational Science Research Center, Beijing 100193, China
  • 2College of Communications Engineering, PLA University of Science and Technology, Nanjing 210007, China
  • 3Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372
  • 4Departamento de Física, Universidad de Santiago de Chile (USACH), Avenida Ecuador 3493, 9170124, Santiago, Chile

  • *jqyou@csrc.ac.cn

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Vol. 94, Iss. 1 — July 2016

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