John Jeffers

TL;DR: The electromagnetic field is quantized in dielectric media that show both loss and dispersion in the form of Langevin forces in the forms of noise current operators.

TL;DR: It is shown that while the absorption of photons from a travelling wave is probabilistic, standing wave absorption can be observed deterministically, with nearly unitary probability of coupling a photon into a mode of the material, for example, a localized plAsmon when this is a metamaterial excited at the plasmon resonance.

TL;DR: In this paper, the authors generalized the input-output relations for an optical beam splitter to allow linear absorption by the medium forming the mirror, and showed that the degree of second-order coherence of antibunched light can be maintained on transmission through the beam-splitter but any amplitude squeezing in the incident light is degraded.

TL;DR: This work demonstrates an experimental system, which distributes quantum signatures from one sender to two receivers and enables message sending ensured against forging and repudiation, and analyzes the security of the system in some typical scenarios.

TL;DR: This work presents the first realization of a scheme that does not need quantum memory and which also uses only standard linear optical components and photodetectors, and significantly advances quantum digital signatures as a quantum technology with potential for real applications.