5 papers
Daylight quantum key distribution over 1.6 km
W. T. Buttler, R. J. Hughes, S. K. Lamoreaux +3
Quantum key distribution (QKD) has been demonstrated over a point-to-point -km atmospheric optical path in full daylight. This record transmission distance brings QKD a st…
Practical quantum cryptography for secure free-space communications
Richard J. Hughes, William T. Buttler, Paul G. Kwiat +4
Quantum cryptography is an emerging technology in which two parties may simultaneously generate shared, secret cryptographic key material using the transmission of quantum states o…
Practical quantum key distribution over a 48-km optical fiber network
Richard J. Hughes, George L. Morgan, C. Glen Peterson
The secure distribution of the secret random bit sequences known as "key" material, is an essential precursor to their use for the encryption and decryption of confidential communi…
Practical free-space quantum key distribution over 1 km
W. T. Buttler, R. J. Hughes, P. G. Kwiat +6
A working free-space quantum key distribution (QKD) system has been developed and tested over an outdoor optical path of ~1 km at Los Alamos National Laboratory under nighttime con…
Free-space quantum key distribution
W. T. Buttler, R. J. Hughes, P. G. Kwiat +5
A working free-space quantum key distribution (QKD) system has been developed and tested over a 205-m indoor optical path at Los Alamos National Laboratory under fluorescent lighti…