- Max Planck Institute for Gravitational PhysicsDE902 papers
- Centre National de la Recherche ScientifiqueFR408 papers
- University of BirminghamGB324 papers
- University of GlasgowGB320 papers
- California Institute of TechnologyUS313 papers
- University of Wisconsin–MilwaukeeUS307 papers
- Stanford UniversityUS280 papers
- Cardiff UniversityGB277 papers
- Massachusetts Institute of TechnologyUS277 papers
- University of FloridaUS277 papers
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- Goddard Space Flight CenterUS273 papers
11 papers · 2 filters
Separability in 2xN composite quantum systems
B. Kraus, J. I. Cirac, S. Karnas +1
We analyze the separability properties of density operators supported on $\C^2\otimes \C^N$ whose partial transposes are positive operators. We show that if the rank of equals…
Construction of quantum states with bound entanglement
Dagmar Bruss, Asher Peres
We present a new family of bound-entangled quantum states in 3x3 dimensions. Their density matrix depends on 7 independent parameters and has 4 different non-vanishing eigenvalues.
A Schmidt number for density matrices
Barbara M. Terhal, Pawel Horodecki
We introduce the notion of a Schmidt number of a bipartite density matrix, characterizing the minimum Schmidt rank of the pure states that are needed to construct the density matri…
Distillability and partial transposition in bipartite systems
W. Dür, J. I. Cirac, M. Lewenstein +1
We study the distillability of a certain class of bipartite density operators which can be obtained via depolarization starting from an arbitrary one. Our results suggest that non-…
Scattering of short laser pulses from trapped fermions
T. Wong, Ozgur Mustecaplioglu, L. You +1
We investigate the scattering of intense short laser pulses off trapped cold fermionic atoms. We discuss the sensitivity of the scattered light to the quantum statistics of the ato…
Phase covariant quantum cloning
D. Bruss, M. Cinchetti, G. M. D'Ariano +1
We consider an N -> M quantum cloning transformation acting on pure two-level states lying on the equator of the Bloch sphere. An upper bound for its fidelity is presented, by esta…