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- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicCZ73 papers
- Czech Academy of SciencesCZ56 papers
- Argonne National LaboratoryUS52 papers
- Centre National de la Recherche ScientifiqueFR52 papers
- Radboud University NijmegenNL52 papers
- Slovak Academy of SciencesSK52 papers
- Charles UniversityCZ51 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR51 papers
- National Institute for Subatomic PhysicsNL51 papers
- New York UniversityUS51 papers
- Sorbonne UniversitéFR51 papers
- The Ohio State UniversityUS51 papers
15 papers · 2 filters
Nonlinear potential of quantum oscillator induced by single photons
Kimin Park, Petr Marek, Radim Filip
Experimental investigation of the nonlinear dynamics of a quantum oscillator is a long standing goal of quantum physics. We propose a conditional method for inducing an arbitrary n…
Entanglement-based continuous-variable quantum key distribution with multimode states and detectors
Vladyslav C. Usenko, Laszlo Ruppert, Radim Filip
Secure quantum key distribution with multimode Gaussian entangled states and multimode homodyne detectors is proposed. In general the multimode character of both the sources of ent…
Extremal states for photon number and quadratures as gauges for nonclassicality
Z. Hradil, J. Rehacek, P. de la Hoz +2
Rotated quadratures carry the phase-dependent information of the electromagnetic field, so they are somehow conjugate to the photon number. We analyze this noncanonical pair, findi…
Long-distance continuous-variable quantum key distribution with efficient channel estimation
László Ruppert, Vladyslav C. Usenko, Radim Filip
We investigate the main limitations which prevent the continuous-variable quantum key distribution protocols from achieving long distances in the finite-size setting. We propose a…
Quantumness of Gaussian Discord: Experimental Evidence and Role of System-Environment Correlations
Vanessa Chille, Niall Quinn, Christian Peuntinger +5
We provide experimental evidence of quantum features in bi-partite states classified as entirely classical according to a conventional criterion based on the Glauber P-function but…
Knowing "where the photons have been"
Karol Bartkiewicz, Antonín Černoch, Dalibor Javůrek +3
Linear-optical interferometers play a key role in designing circuits for quantum information processing and quantum communications. Even though nested Mach-Zehnder interferometers…