3.4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Slovak Academy of SciencesSK625 papers
- Czech Academy of SciencesCZ82 papers
- Masaryk UniversityCZ80 papers
- Centre National de la Recherche ScientifiqueFR78 papers
- Joint Institute for Nuclear ResearchRU74 papers
- University of Pavol Jozef ŠafárikSK62 papers
- Institute of Chemistry of the Slovak Academy of SciencesSK60 papers
- Charles UniversityCZ54 papers
- Comenius University BratislavaSK46 papers
- RIKEN Center for Emergent Matter ScienceJP45 papers
- University of BaselCH43 papers
- Université Paris-SudFR38 papers
7 papers · 2 filters
Dynamics of open quantum systems initially entangled with environment: Beyond the Kraus representation
Peter Stelmachovic, Vladimir Buzek
We present a general analysis of the role of initial correlations between the open system and an environment on quantum dynamics of the open system.
Discrimination of the Bell states of qudits by means of linear optics
Miloslav Dusek
The question of the discrimination of the Bell states of two qudits (i.e., d-dimensional quantum systems) by means of passive linear optical elements and conditional measurements i…
Wigner-function description of quantum teleportation in arbitrary dimensions and continuous limit
M. Koniorczyk, V. Buzek, J. Janszky
We present a unified approach to quantum teleportation in arbitrary dimensions based on the Wigner-function formalism. This approach provides us with a clear picture of all manipul…
Entanglement by a beam splitter: nonclassicality as a prerequisite for entanglement
M. S. Kim, W. Son, V. Bu{ž}ek +1
A beam splitter is a simple, readily available device which can act to entangle the output optical fields. We show that a necessary condition for the fields at the output of the be…
Bell-inequality violation with "thermal" radiation
Radim Filip, Miloslav Dusek, Jaromir Fiurasek +1
The model of a quantum-optical device for a conditional preparation of entangled states from input mixed states is presented. It is demonstrated that even thermal or pseudo-thermal…
Singlet states and the estimation of eigenstates and eigenvalues of an unknown Controlled-U gate
Mark Hillery, Vladimir Buzek
We consider several problems that involve finding the eigenvalues and generating the eigenstates of unknown unitary gates. We first examine Controlled-U gates that act on qubits, a…
Multiparticle entanglement with quantum logic networks: Application to cold trapped ions
Marek Sasura, Vladimir Buzek
We show how to construct a multi-qubit control gate on a quantum register of an arbitrary size N. This gate performs a single-qubit operation on a specific qubit conditioned by the…