Angular two-photon interference and angular two-qubit states

Anand Kumar Jha; Jonathan Leach; Barry Jack; Sonja Franke-Arnold; Stephen M. Barnett; Robert W. Boyd; Miles J.  Padgett

doi:10.1103/PhysRevLett.104.010501

Angular two-photon interference and angular two-qubit states

Anand Kumar Jha, Jonathan Leach, Barry Jack, Sonja Franke-Arnold, Stephen M. Barnett, Robert W. Boyd, Miles J. Padgett

Physics

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

269 Downloads (Pure)

Abstract

Using angular-position-orbital-angular-momentum entangled photons, we study angular two-photon interference in a scheme in which entangled photons are made to pass through apertures in the form of double angular slits, and using this scheme, we demonstrate an entangled two-qubit state that is based on the angular-position correlations of entangled photons. The entanglement of the two-qubit state is quantified in terms of concurrence. These results provide an additional means for preparing entangled quantum states for use in quantum information protocols.

Original language	English
Article number	010501
Number of pages	4
Journal	Physical Review Letters
Volume	104
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.104.010501
Publication status	Published - 2010

Keywords

angular two-photon interference
quantum states
two quibit states

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10.1103/PhysRevLett.104.010501

Ang2PhotIntSubmitted manuscript, 515 KB

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abstract = "Using angular-position-orbital-angular-momentum entangled photons, we study angular two-photon interference in a scheme in which entangled photons are made to pass through apertures in the form of double angular slits, and using this scheme, we demonstrate an entangled two-qubit state that is based on the angular-position correlations of entangled photons. The entanglement of the two-qubit state is quantified in terms of concurrence. These results provide an additional means for preparing entangled quantum states for use in quantum information protocols.",

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AU - Jha, Anand Kumar

AU - Leach, Jonathan

AU - Jack, Barry

AU - Franke-Arnold, Sonja

AU - Barnett, Stephen M.

AU - Boyd, Robert W.

AU - Padgett, Miles J.

PY - 2010

Y1 - 2010

N2 - Using angular-position-orbital-angular-momentum entangled photons, we study angular two-photon interference in a scheme in which entangled photons are made to pass through apertures in the form of double angular slits, and using this scheme, we demonstrate an entangled two-qubit state that is based on the angular-position correlations of entangled photons. The entanglement of the two-qubit state is quantified in terms of concurrence. These results provide an additional means for preparing entangled quantum states for use in quantum information protocols.

AB - Using angular-position-orbital-angular-momentum entangled photons, we study angular two-photon interference in a scheme in which entangled photons are made to pass through apertures in the form of double angular slits, and using this scheme, we demonstrate an entangled two-qubit state that is based on the angular-position correlations of entangled photons. The entanglement of the two-qubit state is quantified in terms of concurrence. These results provide an additional means for preparing entangled quantum states for use in quantum information protocols.

KW - angular two-photon interference

KW - quantum states

KW - two quibit states

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JO - Physical Review Letters

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Angular two-photon interference and angular two-qubit states

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Keywords

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Full-field Coherent Quantum Imaging

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Angular two-photon interference and angular two-qubit states

Abstract

Keywords

Access to Document

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Full-field Coherent Quantum Imaging

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