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author = "Filip, AT"
<< < 3 4 5 6 7 > >>

Found 2,364 documents, displaying page 5 of 237

Squeezing concentration for Gaussian states with unknown parameter

Author(s) : Filip, Radim , Mišta Jr, Ladislav
Description : A continuous-variable analog of the Deutsch's distillation protocol locally operating with two copies of the same Gaussian state is suggested. Irrespectively of the impossibility of Gaussian state distillation, we reveal that this protocol is able to perform a squeezing concentration of the Gaussi...
Repository : arXiv
Language(s) : Undetermined

Improved storage of coherent and squeezed states in imperfect ring cavity

Author(s) : Marek, Petr , Filip, Radim
Description : We propose a method of an improving quality of a ring cavity which is imperfect due to non-unit mirror reflectivity. The method is based on using squeezed states of light pulses illuminating the mirror and gradual homodyne detection of a radiation escaping from the cavity followed by single displa...
Repository : arXiv
Language(s) : Undetermined

Partial deterministic non-demolition Bell measurement

Author(s) : Mišta Jr., Ladislav , Filip, Radim
Description : We propose the scheme implementing partial deterministic non-demolition Bell measurement. When it is used in quantum teleportation the information about an unknown input state is optimally distributed among three outgoing qubits. The optimality means that the output fidelities saturate the asymmet...
Repository : arXiv
Language(s) : Undetermined

Improving teleportation of continuous variables by local operations

Author(s) : Mišta Jr, Ladislav , Filip, Radim
Description : We study a continuous-variable (CV) teleportation protocol based on a shared entangled state produced by the quantum-nondemolition (QND) interaction of two vacuum states. The scheme utilizes the QND interaction or an unbalanced beam splitter in the Bell measurement. It is shown that in the non-uni...
Repository : arXiv
Language(s) : Undetermined

Probabilistic purification of noisy coherent states

Author(s) : Marek, Petr , Filip, Radim
Description : A basic feasible probabilistic purification of unknown noisy coherent states, outgoing from different state preparations with unknown mean number of thermal photons, is proposed. The scheme is based only on a linear-optical network with an avalanche photo-diode or heterodyne (homodyne) detection u...
Repository : arXiv
Language(s) : Undetermined

Quantum adaptation of noisy channels

Author(s) : Gavenda, Miroslav , Filip, Radim
Description : Probabilistic quantum filtering is proposed to properly adapt sequential independent quantum channels in order to stop sudden death of entanglement. In the adaptation, the quantum filtering does not distill or purify more entanglement, it rather properly prepares entangled state to the subsequent ...
Repository : arXiv
Language(s) : Undetermined

Coherent-state phase concentration by quantum probabilistic amplification

Author(s) : Marek, Petr , Filip, Radim
Description : We propose novel coherent-state phase concentration by probabilistic measurement-induced ampli- fication. The amplification scheme uses novel architecture, thermal noise addition (instead of single photon addition) followed by feasible multiple photon subtraction using realistic photon-number reso...
Repository : arXiv
Language(s) : Undetermined

Noise resilient quantum interface based on QND interaction

Author(s) : Marek, Petr , Filip, Radim
Description : We propose a quantum interface protocol based on two quantum-non-demolition interactions (QND) arranged either in sequence or in parallel. Since the QND coupling arises naturally in interactions between light and a macroscopic ensemble of atoms, or between light and a micro-mechanical oscillator, ...
Repository : arXiv
Language(s) : Undetermined

Solutii pentru masurarea calitatii informatiei contabile

Author(s) : Deaconu, Adela , Filip, Crina , Buiga, Anuta
Description : There are many studies confirming the theory according to which the decisions of the users of the accounting information depend on the quality of this very information, namely its intrinsic quality, as well as its impact through publication. We undertake to test the extent to which the intrinsic qu...
Repository : Munich RePEc Personal Archive
Language(s) : Undetermined

Legitimacy to develop fair value measurement standards: The Case of the IVSC Discussion Paper – Determination of fair value of intangible assets for IFRS reporting purposes

Author(s) : Deaconu, Adela , Nistor, Cristina Silvia , Filip, Crina
Description : This research studies, through a content analysis of the comment letters to the IVSC project on fair value determination of intangible assets, the legitimacy of this professional body, or of the accounting associations, to develop measurement standards specific to this accounting concept. At present...
Repository : Munich RePEc Personal Archive
Language(s) : Undetermined
<< < 3 4 5 6 7 > >>

Found 2,364 documents, displaying page 5 of 237