856 citations
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicCZ16 papers
- Leibniz University HannoverDE6 papers
- Max Planck Institute for Gravitational PhysicsDE6 papers
- Max Planck Institute for the Science of LightDE6 papers
- Queen's University BelfastGB6 papers
- Slovak Academy of SciencesSK6 papers
- Max Planck SocietyDE4 papers
- Université Libre de BruxellesBE4 papers
- Sapienza University of RomeIT3 papers
- Universidad Complutense de MadridES3 papers
- Czech Academy of SciencesCZ2 papers
- Friedrich-Alexander-Universität Erlangen-NürnbergDE2 papers
16 papers · 1 filter
Fibre-optics implementation of asymmetric phase-covariant quantum cloner
Lucie Bartuskova, Miloslav Dusek, Antonin Cernoch +2
We present the experimental realization of optimal symmetric and asymmetric phase-covariant 1->2 cloning of qubit states using fiber optics. State of each qubit is encoded into a s…
Diluted maximum-likelihood algorithm for quantum tomography
Jaroslav Rehacek, Zdenek Hradil, E. Knill +1
We propose a refined iterative likelihood-maximization algorithm for reconstructing a quantum state from a set of tomographic measurements. The algorithm is characterized by a very…
Marginal intermediate statistics in the excited spectra of E\otimes (b_1+b_2) Jahn-Teller systems
E. Majernikova, Serge Shpyrko
The long-range spectral density correlations (spectral rigidities and related spectral compressibilities) of the Jahn-Teller model are found…
Optimal multicopy asymmetric Gaussian cloning of coherent states
Jaromir Fiurasek, Nicolas J. Cerf
We investigate the asymmetric Gaussian cloning of coherent states which produces M copies from N input replicas, such that the fidelity of all copies may be different. We show that…
Quantum chaos, localized states and clustering in excited spectra of Jahn-Teller models
E. Majernikova, S. Shpyrko
We studied complex spectra of spin-two boson systems represented by Ee and E Jahn-Teller models. For Ee, at particular rotation quantum numbers…
Experimental phase-covariant cloning of polarization states of single photons
A. Cernoch, L. Bartuskova, J. Soubusta +3
The experimental realization of optimal symmetric phase-covariant 1->2 cloning of qubit states is presented. The qubits are represented by polarization states of photons generated…