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5 papers · 2 filters
Schroedinger cat-like states by conditional measurements on a beam-splitter
M. Dakna, T. Anhut, T. Opartny +2
A scheme for generating Schrödinger cat-like states of a single-mode optical field by means of conditional measurement is proposed. Feeding into a beam splitter a squeezed vacuum a…
Direct sampling of the Susskind-Glogower phase distributions
M. Dakna, L. Knoll, D. -G. Welsch
Coarse-grained phase distributions are introduced that approximate to the Susskind--Glogower cosine and sine phase distributions. The integral relations between the phase distribut…
Photon tunneling through absorbing dielectric barriers
Toralf Gruner, Dirk-Gunnar Welsch
Using a recently developed formalism of quantization of radiation in the presence of absorbing dielectric bodies, the problem of photon tunneling through absorbing barriers is stud…
Multi-mode density matrices of light via amplitude and phase control
T. Opatrny, D. -G. Welsch, W. Vogel
A new method is described for determining the quantum state of correlated multimode radiation by interfering the modes and measuring the statistics of the superimposed fields in fo…
Homodyne detection for measuring internal quantum correlations of optical pulses
T. Opatrny, D. -G. Welsch, W. Vogel
A new method is described for determining the quantum correlations at different times in optical pulses by using balanced homodyne detection. The signal pulse and sequences of ultr…