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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 11 — Jun. 1, 2014
  • pp: 3312–3315

Single-step implementation of a multiple-target-qubit controlled phase gate without need of classical pulses

Chui-Ping Yang, Qi-Ping Su, Feng-Yang Zhang, and Shi-Biao Zheng  »View Author Affiliations


Optics Letters, Vol. 39, Issue 11, pp. 3312-3315 (2014)
http://dx.doi.org/10.1364/OL.39.003312


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Abstract

We propose a simple method for achieving a multiqubit phase gate of one qubit simultaneously controlling n target qubits, by using three-level quantum systems (i.e., qutrits) coupled to a cavity or resonator. The gate can be realized via one operational step, without need of classical pulses, and by a virtual photon process. Thus, the gate operation is greatly simplified and decoherence from the cavity decay is much reduced, when compared with previous proposals. In addition, the operation time is independent of the number of qubits and no adjustment of the qutrit level spacings or the cavity frequency is needed during the operation.

© 2014 Optical Society of America

OCIS Codes
(270.5580) Quantum optics : Quantum electrodynamics
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

History
Original Manuscript: February 28, 2014
Revised Manuscript: April 22, 2014
Manuscript Accepted: April 27, 2014
Published: May 29, 2014

Citation
Chui-Ping Yang, Qi-Ping Su, Feng-Yang Zhang, and Shi-Biao Zheng, "Single-step implementation of a multiple-target-qubit controlled phase gate without need of classical pulses," Opt. Lett. 39, 3312-3315 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-11-3312


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