Entangling two oscillators with arbitrary asymmetric initial states

Chui-Ping Yang, Qi-Ping Su, Shi-Biao Zheng, Franco Nori, and Siyuan Han
Phys. Rev. A 95, 052341 – Published 23 May 2017

Abstract

We present a Hamiltonian which can be used to convert any asymmetric state |φa|ϕb of two oscillators a and b into an entangled state via a single-step operation. Furthermore, with this Hamiltonian and only local operations, two oscillators, initially in any asymmetric initial states, can be entangled with a third oscillator. The prepared entangled states can be engineered with an arbitrary degree of entanglement. A discussion of the realization of this Hamiltonian is given. Numerical simulations show that, with current circuit QED technology, it is feasible to generate high-fidelity entangled states of two microwave optical fields, such as entangled coherent states, entangled squeezed states, entangled coherent-squeezed states, and entangled cat states. Our finding opens a avenue for creating not only wavelike or particlelike entanglement but also wavelike and particlelike hybrid entanglement.

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  • Received 23 June 2016

DOI:https://doi.org/10.1103/PhysRevA.95.052341

©2017 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & Technology

Authors & Affiliations

Chui-Ping Yang1, Qi-Ping Su1, Shi-Biao Zheng2, Franco Nori3,4,*, and Siyuan Han5,†

  • 1Department of Physics, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China
  • 2Department of Physics, Fuzhou University, Fuzhou 350002, China
  • 3CEMS, RIKEN, Saitama 351-0198, Japan
  • 4Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
  • 5Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045, USA

  • *fnori@riken.jp
  • han@ku.edu

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Issue

Vol. 95, Iss. 5 — May 2017

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