Valley entanglement of excitons in monolayers of transition-metal dichalcogenides Academic Article uri icon


  • 2015 American Physical Society. We show that excitons in K and K valleys of transition metal dichalcogenide monolayers can be entangled with respect to their valley degree of freedom by absorbing linearly polarized single photons. This effect does not require any interaction between K and K excitons in contrast to conventional mechanisms of entanglement that are mediated by coupling between quantum systems (e.g., entanglement of photons in nonlinear optical interactions). The valley entanglement of excitons and free carriers can be verified by measuring the polarization of their photoluminescence or fluctuations of the photocurrent under an applied in-plane dc bias.

published proceedings

  • Physical Review B

altmetric score

  • 0.25

author list (cited authors)

  • Tokman, M., Wang, Y., & Belyanin, A.

citation count

  • 12

complete list of authors

  • Tokman, Mikhail||Wang, Yongrui||Belyanin, Alexey

publication date

  • August 2015