21 citations · 41 across the 4 of their papers we have counts for
10 papers · 1 filter
Quantum gates and decoherence
Stefan Scheel, Jiannis Pachos, E. A. Hinds +1
In the lectures we will be concerned with some aspects of physical implementations of quantum gate operations which are necessary for quantum information processing. We will discus…
Post-processing with linear optics for improving the quality of single-photon sources
Dominic W. Berry, Stefan Scheel, Casey R. Myers +3
Triggered single-photon sources produce the vacuum state with non-negligible probability, but produce a much smaller multiphoton component. It is therefore reasonable to approximat…
On improving single photon sources via linear optics and photodetection
Dominic W. Berry, Stefan Scheel, Barry C. Sanders +1
In practice, single photons are generated as a mixture of vacuum with a single photon with weights 1-p and p, respectively; here we are concerned with increasing p by directing mul…
Non-classical Gaussian states in noisy environments
Stefan Scheel, Dirk-Gunnar Welsch
In this article we review properties of Gaussian states and describe operations on them. The interaction of the electromagnetic field with an absorbing dielectric as a special type…
Entanglement degradation in continuous-variable quantum teleportation
Dirk-Gunnar Welsch, Stefan Scheel, Aleksej V. Chizhov
The influence of losses in the transmission of continuous-variable entangled light through linear devices such as optical fibers is studied, with special emphasis on Gaussian state…
3D input-output relations of quantized light at dispersing and absorbing multilayer dielectric plates
Stefan Scheel, Dirk-Gunnar Welsch
The theory developed by Gruner and Welsch [Phys. Rev. A 54, 1661 (1996)] for calculating the 1D input-output relations of the quantized electromagnetic field at dispersing and abso…