72 citations · 406 across the 16 of their papers we have counts for
17 papers
Tripartite quantum correlations obtained by post-selection from twin beams
Pavel Pavlicek, Jan Perina, Vaclav Michalek +2
Spatially-resolved photon counting of a twin beam performed by an iCCD camera allows for versatile tailoring the properties of the beams formed by parts of the original twin beam.…
Non-classicality criteria for N-dimensional optical fields detected by quadratic detectors
Jan Perina, Pavel Pavlicek, Vaclav Michalek +2
Non-classicality criteria for general N-dimensional optical fields are derived. They involve intensity moments, the probabilities of photon-number distributions or combinations of…
Two-beam light with simultaneous anticorrelations in photon-number fluctuations and sub-Poissonian statistics
Jan Perina, Vaclav MIchalek, Radek Machulka +1
Two twin beams with a shared signal beam and separated idler beams are used together with the photon-number-resolving postselection in the signal beam to arrive at two coupled beam…
Non-classicality and entanglement criteria for bipartite optical fields characterized by quadratic detectors II: Criteria based on probabilities
Jan Perina, Vaclav Michalek, Ondrej Haderka
Numerous non-classicality criteria based on the probabilities of experimental photocount or theoretical photon-number distributions are derived using several approaches. Relations…
Experimental quantification of the entanglement of noisy twin beams
Vaclav Michalek, Jan Perina, Ondrej Haderka
Gradual loss of the entanglement of a twin beam containing around 25 photon pairs with the increasing external noise is experimentally investigated. The entanglement is quantified…
Reconstruction of joint photon-number distributions of twin beams incorporating spatial noise reduction
Jan Perina, Vaclav Michalek, Ondrej Haderka
A method for reconstructing joint photon-number distributions of twin beams from the experimental photocount histograms is suggested and experimentally implemented. Contrary to the…
Noise reduction in photon counting by exploiting spatial correlations
Jan Perina, Vaclav Michalek, Ondrej Haderka
Joint photocount distributions of a weak twin beam acquired by an iCCD camera are analyzed with respect to the beam spatial correlations. A method for extracting these correlations…
Nonclassicality and entanglement criteria for bipartite optical fields characterized by quadratic detectors
Jan Perina, Ievgen I. Arkhipov, Vaclav Michalek +1
Numerous inequalities involving moments of integrated intensities and revealing nonclassicality and entanglement in bipartite optical fields are derived using the majorization theo…
Higher-order sub-Poissonian-like nonclassical fields: Theoretical and experimental comparison
Jan Perina, Vaclav Michalek, Ondrej Haderka
Criteria defining higher-order sub-Poissonian-like fields are given using five different quantities: moments of (I) integrated intensity, (II) photon number, (III) integrated-inten…
Experimental detection of nonclassicality of single-mode fields via intensity moments
Ievgen I. Arkhipov, Jan Peřina, Ondřej Haderka +1
Nonclassicality criteria based on intensity moments and derived from the usual matrix approach are compared to those provided by the majorization theory. The majorization theory is…
Characterizing the non-classicality of mesoscopic optical twin-beam states
Alessia Allevi, Marco Lamperti, Maria Bondani +4
We present a robust tool to analyze nonclassical properties of multimode twin-beam states in the mesoscopic photon-number domain. The measurements are performed by direct detection…
Optimal sub-Poissonian light generation from twin beams by photon-number resolving detectors
Marco Lamperti, Alessia Allevi, Maria Bondani +4
We generate nonclassical conditional states by exploiting the quantum correlations of multi-mode twin-beam states endowed with a sizeable number of photons. A strong relation betwe…
State reconstruction of a multimode twin beam using photodetection
Jan Perina, Ondrej Haderka, Vaclav Michalek +1
Robust and reliable method for reconstructing quasi-distributions of integrated intensities of twin beams generated in spontaneous parametric down-conversion and entangled in photo…
Absolute detector calibration using twin beams
Jan Perina, Ondrej Haderka, Vaclav Michalek +1
A method for the determination of absolute quantum detection efficiency is suggested based on the measurement of photocount statistics of twin beams. The measured histograms of joi…
Photon-number distributions of twin beams generated in spontaneous parametric down-conversion and measured by an intensified CCD camera
Jan Perina, Ondrej Haderka, Martin Hamar +1
The measurement of photon-number statistics of fields composed of photon pairs, generated in spontaneous parametric down-conversion and detected by an intensified CCD camera is des…
Transverse coherence of photon pairs generated in spontaneous parametric down-conversion
Martin Hamar, Jan Perina, Ondrej Haderka +1
Coherence properties of the down-converted beams generated in spontaneous parametric down-conversion are investigated in detail using an iCCD camera. Experimental results are compa…
Angular uncertainty of momentum correlations in parametric fluorescence
Martin Hamar, Jan Perina, Vaclav Michalek +1
Uncertainty in the determination of emission angles of signal and idler photons is investigated. The role of divergence of the pump beam, width of the pump spectrum, and size of th…