Search Results - "Fiurásek, Jaromír"

Analysis of continuous-variable quantum teleportation enhanced by measurement-based noiseless quantum amplification by Fiurášek, Jaromír

“…Continuous-variable quantum teleportation enables deterministic teleportation of quantum states of optical modes. However, the state transfer is imperfect and…”
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Teleportation-based noiseless quantum amplification of coherent states of light by Fiurášek, Jaromír

“…We propose and theoretically analyze a teleportation-based scheme for the high-fidelity noiseless quantum amplification of coherent states of light. In our…”
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Efficient construction of witnesses of the stellar rank of nonclassical states of light by Fiurášek, Jaromír

“…The stellar hierarchy of quantum states of light classifies the states according to the Fock-state resources that are required for their generation together…”
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No-go theorem for gaussian quantum error correction by Niset, Julien, Fiurásek, Jaromír, Cerf, Nicolas J

“…We prove that Gaussian operations are of no use for protecting Gaussian states against Gaussian errors in quantum communication protocols. Specifically, we…”
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Gaussian transformations and distillation of entangled Gaussian states by Fiurásek, Jaromír

“…We prove that it is impossible to distill more entanglement from a single copy of a two-mode bipartite entangled Gaussian state via local Gaussian operations…”
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Quantum non-Gaussianity criteria based on vacuum probabilities of original and attenuated state by Fiurášek, Jaromír, Lachman, Lukáš, Filip, Radim

“…Quantum non-Gaussian states represent an important class of highly non-classical states whose preparation requires quantum operations or measurements beyond…”
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Direct Experimental Certification of Quantum Non-Gaussian Character and Wigner Function Negativity of Single-Photon Detectors by Hloušek, Josef, Ježek, Miroslav, Fiurášek, Jaromír

“…Highly nonclassical character of optical quantum detectors, such as single-photon detectors, is essential for preparation of quantum states of light and a vast…”
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Quantum non-Gaussianity certification of photon number-resolving detectors by Grygar, Jan, Hloušek, Josef, Fiurášek, Jaromír, Ježek, Miroslav

“…We report on direct experimental certification of the quantum non-Gaussian character of a photon number-resolving detector. The certification protocol is based…”
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Preparation of distilled and purified continuous-variable entangled states by Schnabel, Roman, Hage, Boris, Samblowski, Aiko, DiGuglielmo, James, Franzen, Alexander, Fiurášek, Jaromír

“…The distribution of entangled states of light over long distances is a major challenge in the field of quantum information. Optical losses, phase diffusion and…”
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Efficient entanglement distillation without quantum memory by Abdelkhalek, Daniela, Syllwasschy, Mareike, Cerf, Nicolas J., Fiurášek, Jaromír, Schnabel, Roman

“…Entanglement distribution between distant parties is an essential component to most quantum communication protocols. Unfortunately, decoherence effects such as…”
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Deterministic controlled enhancement of local quantum coherence by Horová, Nikola, Stárek, Robert, Mičuda, Michal, Kolář, Michal, Fiurášek, Jaromír, Filip, Radim

“…We investigate assisted enhancement of quantum coherence in a bipartite setting with control and target systems, which converts the coherence of the control…”
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Experimental entanglement distribution by separable states by Vollmer, Christina E, Schulze, Daniela, Eberle, Tobias, Händchen, Vitus, Fiurášek, Jaromír, Schnabel, Roman

“…Distribution of entanglement between macroscopically separated parties is crucial for future quantum information networks. Surprisingly, it has been…”
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Measurement-Induced Strong Kerr Nonlinearity for Weak Quantum States of Light by Costanzo, Luca S, Coelho, Antonio S, Biagi, Nicola, Fiurášek, Jaromír, Bellini, Marco, Zavatta, Alessandro

“…Strong nonlinearity at the single photon level represents a crucial enabling tool for optical quantum technologies. Here we report on experimental…”
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Experimental entanglement-assisted weak measurement of phase shift by Stárek, Robert, Mičuda, Michal, Hošák, Radim, Ježek, Miroslav, Fiurášek, Jaromír

“…Weak value amplification is a popular method in quantum metrology for enhancing the sensitivity at the expense of the signal intensity. Recently, it was…”
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Feedforward-enhanced Fock state conversion with linear optics by Švarc, Vojtěch, Hloušek, Josef, Nováková, Martina, Fiurášek, Jaromír, Ježek, Miroslav

“…Engineering quantum states of light represents a crucial task in the vast majority of photonic quantum technology applications. Direct manipulation of the…”
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Quantum up-conversion of squeezed vacuum states from 1550 to 532 nm by Vollmer, Christina E, Baune, Christoph, Samblowski, Aiko, Eberle, Tobias, Händchen, Vitus, Fiurášek, Jaromír, Schnabel, Roman

“…Squeezed vacuum states constitute a particularly useful resource in quantum information as well as in quantum metrology. The frequency conversion of these…”
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Experimental realization of SWAP operation on hyper-encoded qubits by Stárek, Robert, Miková, Martina, Straka, Ivo, Dušek, Miloslav, Ježek, Miroslav, Fiurášek, Jaromír, Mičuda, Michal

“…Hyper-encoding enables storing several qubits in a single photon using its different degrees of freedom like polarization and spatial ones. This approach…”
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Experimental test of the quantum non-Gaussian character of a heralded single-photon state by Ježek, Miroslav, Straka, Ivo, Mičuda, Michal, Dušek, Miloslav, Fiurášek, Jaromír, Filip, Radim

“…We report on the experimental verification of quantum non-Gaussian character of a heralded single-photon state with a positive Wigner function. We…”
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Experimental quantum decoherence control by dark states of the environment by Stárek, Robert, Mičuda, Michal, Straka, Ivo, Nováková, Martina, Dušek, Miloslav, Ježek, Miroslav, Fiurášek, Jaromír, Filip, Radim

“…Coherent interaction of a quantum system with environment usually induces quantum decoherence. However, remarkably, in certain configurations the coherent…”
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Experimental preparation of multiphoton-added coherent states of light by Fadrný, Jiří, Neset, Michal, Bielak, Martin, Ježek, Miroslav, Bílek, Jan, Fiurášek, Jaromír

“…Conditional addition of photons represents a crucial tool for optical quantum state engineering and it forms a fundamental building block of advanced quantum…”
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