5 papers · 1 filter
Generating and monitoring Schrödinger cats in conditional measurement on a beam splitter
M. Dakna, J. Clausen, L. Knoll +1
Preparation of Schrödinger-cat-like states via conditional output measurement on a beam splitter is studied. In the scheme, a mode prepared in a squeezed vacuum is mixed with a mod…
Quantum state engineering using conditional measurement on a beam splitter
M. Dakna, L. Knoll, D. -G. Welsch
State preparation via conditional output measurement on a beam splitter is studied, assuming the signal mode is mixed with a mode prepared in a Fock state and photon numbers are me…
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…