5 papers · 1 filter
Anomalies of Wave-Particle Duality due to Translational-Internal Entanglement
Michal Kolar, Tomas Opatrny, Nir Bar-Gill +1
We predict that if internal and momentum states of an interfering object are correlated (entangled), then by measuring its internal state we may infer both path (corpuscular) and p…
Entanglement transformation at dielectric four-port devices
S. Scheel, L. Knoll, T. Opatrny +1
Quantum communication schemes widely use dielectric four-port devices as basic elements for constructing optical quantum channels. Since for causality reasons the permittivity is n…
Homodyne measurement of exponential phase moments for quantum-phase reconstruction
M. Dakna, G. Breitenbach, J. Mlynek +3
We directly sample the exponential moments of the canonical phase for various quantum states from the homodyne output. The method enables us to study the phase properties experimen…
Photon adding and subtracting and Schroedinger-cat generation in conditional output measurement on a beam splitter
D. -G. Welsch, M. Dakna, L. Knoll +1
The problem of photon adding and subtracting is studied, using conditional output measurement on a beam splitter. It is shown that for various classes of states the corresponding p…
Exponential Moments of Canonical Phase: Homodyne Measurements
T. Opatrny, M. Dakna, D. -G. Welsch
A method for direct sampling of the exponential moments of canonical phase from the data recorded in balanced homodyne detection is presented. Analytical expressions for the sampli…