Influence of coincidence detection through free-space atmospheric turbulence using partial spatial coherence
arXiv:2006.12911 · doi:10.1103/PhysRevA.102.033732
Abstract
The development of a quantum network relies on the advances of hybrid systems which includes ground to ground communication. However, the atmospheric turbulence of the environment poses a severe challenge to the optical quantum link. In this paper, we outline a theoretical and experimental investigation of the influence of atmospheric turbulence on the coincidence detection of the entangled photon pairs using a fully and partially spatially coherent pump beam. A spatial light modulator is encoded with Kolmogorov model to mimic the atmospheric turbulence strength. The results show that the photon pairs generated using a partially spatially coherent pump are more robust towards varying atmospheric turbulence strengths than the photon pairs produced by a fully spatially coherent pump beam.
References in corpus (4)
- Satellite-to-ground quantum key distribution
- Free-Space distribution of entanglement and single photons over 144 km
- Quantum teleportation and entanglement distribution over 100-kilometre free-space channels
- The influence of pump coherence on the generation of position-momentum entanglement in down-conversion
Cited by in corpus (5)
- Measurement of two-photon position-momentum EPR correlations through single-photon intensity measurements
- Experimental generation of polarization entanglement from spontaneous parametric down-conversion pumped by spatiotemporally highly incoherent light
- Evaluation of Twisted Gaussian Schell Model beams produced with phase randomized coherent fields
- Full time-dependent counting statistics of highly entangled biphoton states
- Violation of local realism with spatially multimode parametric down-conversion pumped by spatially incoherent light