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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 6 — Mar. 15, 2014
  • pp: 1489–1492

One-step implementation of a multiqubit phase gate with one control qubit and multiple target qubits in coupled cavities

Hong-Fu Wang, Ai-Dong Zhu, and Shou Zhang  »View Author Affiliations


Optics Letters, Vol. 39, Issue 6, pp. 1489-1492 (2014)
http://dx.doi.org/10.1364/OL.39.001489


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Abstract

We propose a one-step scheme to implement a multiqubit controlled phase gate with one qubit simultaneously controlling multiple qubits with three-level atoms at distant nodes in coupled cavity arrays. Selective qubit–qubit couplings are achieved by adiabatically eliminating the atomic excited states and photonic states, and the required phase shifts between the control qubit and any target qubit can be realized through suitable choices of the parameters of the external fields. Moreover, the effective model is robust against decoherence because neither the atoms nor the field modes are excited during the gate operation, leading to a useful step toward scalable quantum computing networks.

© 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: November 29, 2013
Revised Manuscript: January 16, 2014
Manuscript Accepted: January 31, 2014
Published: March 11, 2014

Citation
Hong-Fu Wang, Ai-Dong Zhu, and Shou Zhang, "One-step implementation of a multiqubit phase gate with one control qubit and multiple target qubits in coupled cavities," Opt. Lett. 39, 1489-1492 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-6-1489


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