25 citations · 71 across the 7 of their papers we have counts for
7 papers
Compensation of polarization dependent loss using noiseless amplification and attenuation
R. A. Brewster, B. T. Kirby, J. D. Franson +1
Polarization dependent loss (PDL) is a serious problem that hinders the transfer of polarization qubits through quantum networks. Recently it has been shown that the detrimental ef…
Optical attenuation without absorption
I. C. Nodurft, R. A. Brewster, T. B. Pittman +1
We consider a coherent state of light propagating through an ensemble of two-level atoms where all the atoms are initially in their ground state. In ordinary absorption, the transi…
Limitations on the use of the Heisenberg picture in quantum optics
J. D. Franson, R. A. Brewster
The Schrodinger and Heisenberg pictures are equivalent formulations of quantum mechanics. Here we use the Schrodinger picture to calculate the decoherence that occurs when an optic…
Reduced decoherence using squeezing, amplification, and anti-squeezing
R. A. Brewster, T. B. Pittman, J. D. Franson
Loss and decoherence are a major problem in the transmission of non-classical states of light over large distances. It was recently shown that the effects of decoherence can be red…
Noiseless attenuation using an optical parametric amplifier
R. A. Brewster, I. C. Nodurft, T. B. Pittman +1
The process of heralded noiseless amplification, and the inverse process of heralded noiseless attenuation, have potential applications in the context of quantum communications. Al…
Effects of entanglement in an ideal optical amplifier
J. D. Franson, R. A. Brewster
In an ideal linear amplifier, the output signal is linearly related to the input signal with an additive noise that is independent of the input. The decoherence of a quantum-mechan…
Generalized Delta Functions and Their Use in Quantum Optics
R. A. Brewster, J. D. Franson
The Dirac delta function is widely used in many areas of physics and mathematics. Here we consider the generalization of a Dirac delta function to allow the use of complex argument…