Entanglement of polarization and orbital angular momentum Academic Article uri icon


  • 2015 American Physical Society. We investigate two-photon entangled states using two important degrees of freedom of the electromagnetic field, namely orbital angular momentum (OAM) and spin angular momentum. For photons propagating in the same direction we apply the idea of entanglement duality and develop schemes to do entanglement sorting based on either OAM or polarization. In each case the entanglement is tested using appropriate witnesses. We finally present generalizations of these ideas to three- and four-photon entangled states.

published proceedings

  • Physical Review A

altmetric score

  • 0.75

author list (cited authors)

  • Bhatti, D., von Zanthier, J., & Agarwal, G. S.

citation count

  • 47

complete list of authors

  • Bhatti, D||von Zanthier, J||Agarwal, GS

publication date

  • June 2015