6 papers
Maximum heralding probabilities of nonclassical-state generation from a two-mode Gaussian state via photon-counting measurements
JaromÃr Fiurášek
Highly nonclassical states of light - such as the approximate Gottesman-Kitaev-Preskill states, states exhibiting cubic nonlinear squeezing, or cat-like states - can be generated f…
Witnesses of non-Gaussian features as lower bounds of stellar rank
Jan ProvaznÃk, Å imon Bräuer, VojtÄch Kala +2
Quantum non-Gaussian states and operations serve as fundamental resources for universal quantum computation, error correction, and high-precision metrology, extending beyond the Ga…
Certification of stellar ranks of quantum states of light with a pair of click detectors
JaromÃr Fiurášek
Stellar rank of quantum state of light quantifes the amount of non-Gaussian resources required for its generation. One popular and practical approach to certification of stellar ra…
Fundamental limits on determination of photon number statistics from measurements with multiplexed on/off detectors
JaromÃr Fiurášek
We investigate fundamental bounds on the ability to determine photon number distribution and other related quantities from tomographically incomplete measurements with an array of…
Storage and retrieval of two unknown unitary channels
Michal Sedlák, Robert Stárek, Nikola Horová +3
We address the fundamental task of converting uses of an unknown unitary transformation into a quantum state (i.e., storage) and later retrieval of the transformation. Specific…
Experimental investigation of heralded Gaussification of phase-randomized coherent states of light
Martin Dostál, Miroslav Ježek, JaromÃr Fiurášek +1
Probabilistic heralded Gaussification of quantum states of light is an important ingredient of protocols for distillation of continuous variable entanglement and squeezing. An elem…