All-optical scheme for implementation of tri-state Pauli-X, Y and Z quantum gates using phase encoding

2021 ◽  
Vol 17 (12) ◽  
pp. 746-750
Author(s):  
Mir Nadim Sarfaraj ◽  
Sourangshu Mukhopadhyay
2017 ◽  
Vol 46 (2) ◽  
pp. 143-148 ◽  
Author(s):  
Baishali Sarkar ◽  
Sourangshu Mukhopadhyay

Optik ◽  
2013 ◽  
Vol 124 (16) ◽  
pp. 2376-2378
Author(s):  
Subhendu Biswas ◽  
Sourangshu Mukhopadhyay
Keyword(s):  

2019 ◽  
Vol 48 (4) ◽  
pp. 520-526 ◽  
Author(s):  
Shuvra Dey ◽  
Sourangshu Mukhopadhyay

2000 ◽  
Author(s):  
Sourangshu Mukhopadhay ◽  
Debendra N. Das ◽  
Partha P. Das ◽  
Partha Ghosh

1999 ◽  
Vol 162 (4-6) ◽  
pp. 291-298 ◽  
Author(s):  
A.R.D Somervell ◽  
C.Y Wu ◽  
T.G Haskell ◽  
T.H Barnes

2017 ◽  
Vol 15 (08) ◽  
pp. 1740018
Author(s):  
Alan Kanapin ◽  
Alexander Duplinskiy ◽  
Alexander Sokolov ◽  
Sergey Vorobey ◽  
Alexander Miller ◽  
...  

In this work, the results of quantum key distribution through an urban fiber communication line with a length of 30.6[Formula: see text]km and losses of 11.7[Formula: see text]dB, obtained by both phase and polarization encoding-based devices, are presented. For phase encoding, a two-pass auto-compensating optical scheme, commonly called “plug&play”, was used. For polarization encoding, a self-developed unconventional optical scheme was made. A continuous key distribution with a sifted key generation rate of 1.0[Formula: see text]kbit/s and a quantum bit error rate of 5.7% was implemented when using “plug&play” device, whereas 0.1[Formula: see text]kbit/s and 5.5% was observed when using one with polarization encoding. The features and conveniences of both implementations are discussed.


Optik ◽  
2012 ◽  
Vol 123 (11) ◽  
pp. 1022-1025 ◽  
Author(s):  
Sutanu Kumar Chandra ◽  
Sourangshu Mukhopadhyay

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