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

Research output: Contribution to journalArticle

32 Citations (Scopus)

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.
LanguageEnglish
Article number010501
Number of pages4
JournalPhysical Review Letters
Volume104
Issue number1
DOIs
Publication statusPublished - 2010

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interference
photons
slits
angular momentum
apertures
orbitals

Keywords

  • angular two-photon interference
  • quantum states
  • two quibit states

Cite this

Jha, A. K., Leach, J., Jack, B., Franke-Arnold, S., Barnett, S. M., Boyd, R. W., & Padgett, M. J. (2010). Angular two-photon interference and angular two-qubit states. Physical Review Letters, 104(1), [010501]. https://doi.org/10.1103/PhysRevLett.104.010501
Jha, Anand Kumar ; Leach, Jonathan ; Jack, Barry ; Franke-Arnold, Sonja ; Barnett, Stephen M. ; Boyd, Robert W. ; Padgett, Miles J. . / Angular two-photon interference and angular two-qubit states. In: Physical Review Letters. 2010 ; Vol. 104, No. 1.
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Jha, AK, Leach, J, Jack, B, Franke-Arnold, S, Barnett, SM, Boyd, RW & Padgett, MJ 2010, 'Angular two-photon interference and angular two-qubit states' Physical Review Letters, vol. 104, no. 1, 010501. https://doi.org/10.1103/PhysRevLett.104.010501

Angular two-photon interference and angular two-qubit states. / Jha, Anand Kumar; Leach, Jonathan; Jack, Barry; Franke-Arnold, Sonja; Barnett, Stephen M.; Boyd, Robert W.; Padgett, Miles J. .

In: Physical Review Letters, Vol. 104, No. 1, 010501, 2010.

Research output: Contribution to journalArticle

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AU - Jha, Anand Kumar

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AU - Jack, Barry

AU - Franke-Arnold, Sonja

AU - Barnett, Stephen M.

AU - Boyd, Robert W.

AU - Padgett, Miles J.

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Jha AK, Leach J, Jack B, Franke-Arnold S, Barnett SM, Boyd RW et al. Angular two-photon interference and angular two-qubit states. Physical Review Letters. 2010;104(1). 010501. https://doi.org/10.1103/PhysRevLett.104.010501