Title :
Simple and efficient detection scheme for continuous variable quantum key distribution with m-ary phase-shift-keying
Author :
Kleis, Sebastian ; Herschel, Reinhold ; Schaeffer, Christian G.
Author_Institution :
Dept. of High-Freq. Technol., Helmut Schmidt Univ. Hamburg, Hamburg, Germany
Abstract :
A detection scheme for discriminating coherent states in quantum key distribution systems employing PSK is proposed. It is simple and uses only standard components. Its applicability at extremely low power levels of as low as 0.045 photons per symbol is experimentally verified.
Keywords :
light coherence; optical modulation; phase shift keying; photodetectors; quantum cryptography; quantum optics; PSK; coherent states discrimination; continuous variable quantum key distribution; detection scheme; m-ary phase-shift-keying; Modulation; Optical mixing; Optical receivers; Optical transmitters; Photonics; Signal to noise ratio;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
