scholarly journals Quantum correlations of two-photon polarization states in the parametric down-conversion in the presence of white and colored noise

2009 ◽  
Vol 282 (14) ◽  
pp. 2889-2893 ◽  
Author(s):  
Ivan S. Dotsenko ◽  
Volodymyr G. Voronov
Keyword(s):  
Colored Noise ◽  
Quantum Correlations ◽  
Photon Polarization ◽  
Two Photon ◽  
Parametric Down Conversion ◽  
White And Colored Noise ◽  
Polarization States ◽  
Down Conversion

scholarly journals Generation of Pure State Photon Triplets in the C-Band

Micromachines ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 775 ◽  
Author(s):  
Xi-Rong Su ◽  
Yi-Wen Huang ◽  
Tong Xiang ◽  
Yuan-Hua Li ◽  
Xian-Feng Chen
Keyword(s):  
Pure State ◽  
Schmidt Number ◽  
Second Order ◽  
Conversion Process ◽  
Gaussian Filter ◽  
Periodically Poled ◽  
Two Photon ◽  
Parametric Down Conversion ◽  
Photon States ◽  
Down Conversion

In this work, the cascaded second-order spontaneous parametric down-conversion (SPDC) is considered to produce pure state photon triplets in periodically poled lithium niobite (PPLN) doped with 5% MgO. A set of parameters are optimized through calculating the Schmidt number of two-photon states generated by each down-conversion process with different pump durations and crystal lengths. We use a Gaussian filter in part and obtain three photons with 100% purity in spectrum. We provide a feasible and unprecedented scheme to manipulate the spectrum purity of photon triplets in the communication band (C-band).

Arbitrary Transformation of Two-Photon Polarization States with Metasurfaces

2020 ◽  
Author(s):  
Shaun Lung ◽  
Kai Wang ◽  
Khosro Zangeneh Kamali ◽  
Mohsen Rahmani ◽  
Dragomir N. Neshev ◽  
...  
Keyword(s):  
Photon Polarization ◽  
Two Photon ◽  
Polarization States

Robust quantum key distribution with two-photon polarization states

2006 ◽  
Vol 359 (2) ◽  
pp. 126-128 ◽  
Author(s):  
Ming Gao ◽  
Lin-Mei Liang ◽  
Cheng-Zu Li ◽  
Chen-Lin Tian
Keyword(s):  
Quantum Key Distribution ◽  
Key Distribution ◽  
Photon Polarization ◽  
Two Photon ◽  
Polarization States
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