85 citations · 1.5k across the 77 of their papers we have counts for
80 papers
The effect of thermal photons on exceptional points in coupled resonators
Grzegorz Chimczak, Anna Kowalewska-Kudłaszyk, Ewelina Lange +2
We analyse two quantum systems with hidden parity-time (PT) symmetry: one is an optical device, whereas another is a superconducting microwave-frequency device. To investigate thei…
Unavoidability of nonclassicality loss in PT-symmetric systems
Jan Perina, Adam Miranowicz, Joanna K. Kalaga +1
We show that the loss of nonclassicality (including quantum entanglement) cannot be compensated by the (incoherent) amplification of PT-symmetric systems. We address this problem b…
Quantification of Quantum Correlations in Two-Beam Gaussian States Using Photon-Number Measurements
Artur Barasinski, Jan Perina, Antonin Cernoch
Identification, and subsequent quantification of quantum correlations, is critical for understanding, controlling, and engineering quantum devices and processes. We derive and impl…
Hybrid photon-phonon blockade
Shilan Abo, Grzegorz Chimczak, Anna Kowalewska-Kudlaszyk +3
We describe a novel type of blockade in a hybrid mode generated by linear coupling of photonic and phononic modes. We refer to this effect as hybrid photon-phonon blockade and show…
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…