scholarly journals Limits and security of free-space quantum communications

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Stefano Pirandola
Keyword(s):  
Free Space ◽  
Quantum Communications

scholarly journals Correction of Wavefront Tilt Caused by Atmospheric Turbulence Using Quadrant Detectors for Enabling Fast Free-Space Quantum Communications in Daylight

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 3336-3345 ◽  
Author(s):  
Veronica Fernandez ◽  
Jorge Gomez-Garcia ◽  
Alejandro Ocampos-Guillen ◽  
Alberto Carrasco-Casado
Keyword(s):  
Atmospheric Turbulence ◽  
Free Space ◽  
Quantum Communications

Dynamic polarization-basis compensation for free-space quantum communications

2013 ◽  
Vol 10 (2) ◽  
pp. 27-32 ◽  
Author(s):  
Zhang Guangyu ◽  
Yang Zhe ◽  
Zhang Chenglong ◽  
Zhu Zhihan ◽  
Wang Zhenhua
Keyword(s):  
Free Space ◽  
Dynamic Polarization ◽  
Quantum Communications

scholarly journals Free-Space Quantum Communications based on Orbital Angular Momentum

2015 ◽  
Author(s):  
Giuseppe Vallone ◽  
Vincenzo D’Ambrosio ◽  
Giorgio Zarantonello ◽  
Anna Sponselli ◽  
Lorenzo Marrucci ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Free Space ◽  
Quantum Communications

Review of representative free-space quantum communications experiments

2010 ◽  
Author(s):  
Arnold Tunick ◽  
Tyrnita Moore ◽  
Keith Deacon ◽  
Ronald Meyers
Keyword(s):  
Free Space ◽  
Quantum Communications

scholarly journals Entanglement performance of light through the composite free space channel

2021 ◽  
Vol 53 (2) ◽  
Author(s):  
Shujing Zhang ◽  
Jianhong Shi ◽  
Jiancheng Zhao ◽  
Hailong Zhang ◽  
Wansu Bao
Keyword(s):  
Free Space ◽  
Quantum Communication ◽  
Incident Angle ◽  
Chlorophyll Concentration ◽  
Reference Value ◽  
Sea Surface ◽  
Natural Environments ◽  
Quantum Communications ◽  
Beam Wandering ◽  
Entanglement State

AbstractEntanglement transmission is utilized widely in quantum communication. In this paper we establish a model, which characterizes the performance of entanglement state passing through the composite free space channel. This free space channel is compounded with atmosphere, sea surface and underwater channel. Based on the model, the entanglement photon pairs transmitted through composite channel are simulated. Simulation results show that the beam wandering, the incident angle of the beam on the sea surface, the concentration of chlorophyll in the seawater and other factors will lead to the degradation of the entanglement and these factors have a nonlinear relationship with transmittance. Moreover, the increase of the chlorophyll concentration is found to be a relatively heavy impact on the entanglement. In addition, expanding the aperture size of the receiving telescope will improve entanglement. The research of this paper has momentous meaning to the transmission of quantum entanglement in free space. What’s more, the results have an extremely vital reference value for quantum communications in diverse natural environments.

scholarly journals Towards quantum communications in free-space seawater

2017 ◽  
Vol 25 (17) ◽  
pp. 19795 ◽  
Author(s):  
Ling Ji ◽  
Jun Gao ◽  
Ai-Lin Yang ◽  
Zhen Feng ◽  
Xiao-Feng Lin ◽  
...  
Keyword(s):  
Free Space ◽  
Quantum Communications
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