Securing QKD Links in the Full Hilbert Space (2004)
Jackson, Deborah J., Hockney, George M.
Many quantum key distribution analyses examine the link security in a subset of the full Hilbert space that is available to describe the system. In reality, information about the photon state can be...
Detector Efficiency Limits on Quantum Improvement (2004)
Jackson, Deborah J., Hockney, George M.
Although the National Institute of Standards and Technology has measured the intrinsic quantum efficiency of Si and InGaAs APD materials to be above 98 % by building an efficient compound detector,...
Towards photostatistics from photon-number discriminating detectors (2003)
Lee, Hwang, Yurtsever, Ulvi H., Kok, Pieter, Hockney, George M., Adami, Christoph, Braunstein, Samuel L., ...
We study the properties of a photodetector that has a number-resolving capability. In the absence of dark counts, due to its finite quantum efficiency, photodetection with such a detector can only...
Optical Communication Noise Rejection Using Correlated Photons (2003)
Jackson, Deborah J., Hockney, George M., Dowling, Jonathan P.
This paper describes a completely new way to perform noise rejection using a two-photon sensitive detector and taking advantage of the properties of correlated photons to improve an optical...
Suitability versus fidelity for rating single-photon guns (2002)
Hockney, George M., Kok, Pieter, Dowling, Jonathan P.
The creation of specified quantum states is important for most, if not all, applications in quantum computation and communication. The quality of the state preparation is therefore an essential...
The Light Quark Masses from Lattice Gauge Theory (1996)
Gough, Brian J., Hockney, George M., El-Khadra, Aida X., Kronfeld, Andreas S., Mackenzie, Paul B., Mertens, Bart P., ...
We investigate the masses of the light quarks with lattice QCD. We show that most of the large dependence on the lattice spacing, a, observed in previous determinations using Wilson fermions is...