Quantum cryptography with polarization, phase and time encoding (2008)
Buttler, W. T., Lamoreaux, S. K.
We develop and present a quantum cryptography concept in which phase determinations are made from the time that a photon is detected, as opposed to where the photon is detected, and hence is a...
Buttler, W. T., Lamoreaux, S. K., Omenetto, F. G., Torgerson, J. R.
This work considers current potential uses of laser Doppler velocimetry. A discussion of other optical velocimetry techniques is presented and compared with their practical application to modern...
Lamoreaux, S. K., Buttler, W. T.
A general analysis of thermal noise in torsion pendulums is presented. The specific case where the torsion angle is kept fixed by electronic feedback is analyzed. This analysis is applied to a recent...
Fast, efficient error reconciliation for quantum cryptography (2002)
Buttler, W. T., Lamoreaux, S. K., Torgerson, J. R., Nickel, G. H., Donahue, C. H., Peterson, C. G.
We describe a new error reconciliation protocol {\it Winnow} based on the exchange of parity and Hamming's ``syndrome'' for $N-$bit subunits of a large data set. {\it Winnow} was developed in the...
Lamoreaux, S. K., Archibald, G., Barnes, P. D., Buttler, W. T., Clark, D. J., Cooper, M. D., ...
We have measured the mass diffusion coefficient D of 3He in superfluid 4He at temperatures lower than were previously possible. The experimental technique utilizes scintillation light produced when...
Daylight quantum key distribution over 1.6 km (2000)
Buttler, W. T., Hughes, R. J., Lamoreaux, S. K., Morgan, G. L., Nordholt, J. E., Peterson, C. G.
Quantum key distribution (QKD) has been demonstrated over a point-to-point $\sim1.6$-km atmospheric optical path in full daylight. This record transmission distance brings QKD a step closer to...
Practical free-space quantum key distribution over 1 km (1998)
Buttler, W. T., Hughes, R. J., Kwiat, P. G., Lamoreaux, S. K., Luther, G. G., Morgan, G. L., ...
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 conditions. Results...
Free-space quantum key distribution (1998)
Buttler, W. T., Hughes, R. J., Kwiat, P. G., Luther, G. G., Morgan, G. L., Nordholt, J. E., ...
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 lighting conditions....