Quantum-to-the-Home: Achieving Gbits/s Secure Key Rates via Commercial Off-the-Shelf Telecommunication Equipment

Table 1

Overview of recent CV-QKD demonstrations.

Sr #	Reference	Protocol	Receiver bandwidth	Repetition rate	Transmission distance	Secure key rates
	J. Lodewyck et al. (2005)	Gaussian	10 MHz	1 MHz	55 km	Raw key rate up to 1 Mbits/s
	Qi et al. (2007)	Gaussian	1 MHz	100 kHz	5 km	30 kbits/s
	Y. Shen et al. (2010)	Four-state	100 MHz	10 MHz	50 km	46.8 kbits/s
	W. Xu-Yang et al. (2013)	Four-state	N/A	500 kHz	32 km	1 kbits/s
	Jouguet et al. (2013)	Gaussian	N/A	1 MHz	80.5 km	0.7 kbits/s
	S. Kleis et al. (2015)	Four-state	350 MHz	40 MHz	110 km	40 kbits/s
	R. Kumar et al. (2015)	Gaussian + classical	10 MHz	1 MHz	75 km	0.49 kbits/s
	Huang et al. (2016)	Gaussian	5 MHz	2 MHz	100 km	500 bits/s
	S. Kleis et al. (2016)	Four-state	350 MHz	50 MHz	100 km	40 kbits/s
	Qu et al. (2016)	Four-state	23 GHz	20 GHz	Back-to-back	≥12 Mbits/s