In this paper we propose a scheme for creating a three photons Greenberger-Horne-Zeilinger-type (GHZ) state using only linear optics elements and single-photon detectors. We furthermore generalize the scheme for producing any GHZ-like state of n photons. The input state of the scheme consists of a nonentangled state of n photons. Experimental aspects regarding the implementation of the scheme are presented. Finally, the role of such schemes in quantum information processing with photons is discussed.In this paper we propose a scheme for creating a three photons Greenberger-Horne-Zeilinger-type (GHZ) state using only linear optics elements and single-photon detectors. We furthermore generalize the scheme for producing any GHZ-like state of n photons. The input state of the scheme consists of a nonentangled state of n photons. Experimental aspects regarding the implementation of the scheme are presented. Finally, the role of such schemes in quantum information processing with photons is discussed.

arXiv:quant-ph/0307097Physical Review AOct 20, 200325 citations

Experimental generation of an eight-photon Greenberger–Horne–Zeilinger state

Yun‐Feng Huang, Bi‐Heng Liu, Liang Peng +4 more

Nature CommunicationsNov 22, 2011198 citations

Scheme for generation of four-atom Greenberger–Horne–Zeilinger states in an optical cavity

Wei Xiong, Liu Ye

Optics CommunicationsApr 19, 20113 citations

Fast generation of three-qubit Greenberger-Horne-Zeilinger state based on the Lewis-Riesenfeld invariants in coupled cavities

Xiao-Bin Huang, Ye‐Hong Chen, Zhe Wang

In this paper, we propose an efficient scheme to fast generate three-qubit Greenberger-Horne-Zeilinger (GHZ) state by constructing shortcuts to adiabatic passage (STAP) based on the "Lewis-Riesenfeld (LR) invariants" in spatially separated cavities connected by optical fibers. Numerical simulations illustrate that the scheme is not only fast, but robust against the decoherence caused by atomic spontaneous emission, cavity losses and the fiber photon leakages. This might be useful to realize fast and noise-resistant quantum information processing for multi-qubit systems.In this paper, we propose an efficient scheme to fast generate three-qubit Greenberger-Horne-Zeilinger (GHZ) state by constructing shortcuts to adiabatic passage (STAP) based on the "Lewis-Riesenfeld (LR) invariants" in spatially separated cavities connected by optical fibers. Numerical simulations illustrate that the scheme is not only fast, but robust against the decoherence caused by atomic spontaneous emission, cavity losses and the fiber photon leakages. This might be useful to realize fast and noise-resistant quantum information processing for multi-qubit systems.

Scientific ReportsMay 24, 201614 citations

Robust preparation of Greenberger-Horne-Zeilinger and W states of three distant atoms

Chang‐shui Yu, X. X. Yi, He‐Shan Song +1 more

Schemes to generate Greenberger-Horne-Zeilinger (GHZ) and $W$ states of three distant atoms are proposed in this paper. The schemes use the effects of quantum statistics of indistinguishable photons emitted by the atoms inside optical cavities. The advantages of the schemes are their robustness against detection inefficiency and asynchronous emission of the photons. Moreover, in Lamb-Dicke limit, the schemes do not require the simultaneous click of the detectors. This makes the schemes more realizable in experiments.Schemes to generate Greenberger-Horne-Zeilinger (GHZ) and $W$ states of three distant atoms are proposed in this paper. The schemes use the effects of quantum statistics of indistinguishable photons emitted by the atoms inside optical cavities. The advantages of the schemes are their robustness against detection inefficiency and asynchronous emission of the photons. Moreover, in Lamb-Dicke limit, the schemes do not require the simultaneous click of the detectors. This makes the schemes more realizable in experiments.

arXiv:0709.0802Physical Review AApr 6, 200789 citations

Greenberger–Horne–Zeilinger state generation with linear optical elements

Bertúlio de Lima Bernardo, Máté Lencsés, Samuraí Brito +1 more

Quantum Information ProcessingSep 10, 20190 citations

Schemes to generate Greenberger-Horne-Zeilinger (GHZ) and

W

states of three distant atoms are proposed in this paper. The schemes use the effects of quantum statistics of indistinguishable photons emitted by the atoms inside optical cavities. The advantages of the schemes are their robustness against detection inefficiency and asynchronous emission of the photons. Moreover, in Lamb-Dicke limit, the schemes do not require the simultaneous click of the detectors. This makes the schemes more realizable in experiments.