226 citations · 957 across the 21 of their papers we have counts for
21 papers
Signaling, Entanglement, and Quantum Evolution Beyond Cauchy Horizons
Ulvi Yurtsever, George Hockney
Consider a bipartite entangled system half of which falls through the event horizon of an evaporating black hole, while the other half remains coherently accessible to experiments…
Securing QKD Links in the Full Hilbert Space
Deborah J. Jackson, George M. Hockney
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 p…
Detector Efficiency Limits on Quantum Improvement
Deborah J. Jackson, George M. Hockney
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 c…
Signaling and the Black Hole Final State
Ulvi Yurtsever, George Hockney
In an attempt to restore the unitarity of the evaporation process, Horowitz and Maldacena recently proposed a boundary-condition constraint for the final quantum state of an evapor…
Causality, Entanglement, and Quantum Evolution Beyond Cauchy Horizons
Ulvi Yurtsever, George Hockney
We consider a bipartite entangled system half of which falls through the event horizon of an evaporating black hole, while the other half remains coherently accessible to experimen…
Towards photostatistics from photon-number discriminating detectors
Hwang Lee, Ulvi H. Yurtsever, Pieter Kok +4
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 d…