2.1k citations · 35.5k across the 437 of their papers we have counts for
8 papers · 2 filters
Quantum Correlations in Two-Fermion Systems
John Schliemann, J. Ignacio Cirac, Marek Kus +2
We characterize and classify quantum correlations in two-fermion systems having 2K single-particle states. For pure states we introduce the Slater decomposition and rank (in analog…
Schmidt number witnesses and bound entanglement
Anna Sanpera, Dagmar Bruss, Maciej Lewenstein
The Schmidt number of a mixed state characterizes the minimum Schmidt rank of the pure states needed to construct it. We investigate the Schmidt number of an arbitrary mixed state…
Entangling operations and their implementation using a small amount of entanglement
J. I. Cirac, W. Dür, B. Kraus +1
We study when a physical operation can produce entanglement between two systems initially disentangled. The formalism we develop allows to show that one can perform certain non-loc…
Continuous optical loading of a Bose-Einstein Condensate
L. Santos, F. Floegel, T. Pfau +1
The continuous pumping of atoms into a Bose-Einstein condensate via spontaneous emission from a thermal reservoir is analyzed. We consider the case of atoms with a three-level …
Separability and distillability in composite quantum systems -a primer-
M. Lewenstein, D. Bruss, J. I. Cirac +5
Quantum mechanics is already 100 years old, but remains alive and full of challenging open problems. On one hand, the problems encountered at the frontiers of modern theoretical ph…
Laser Induced Condensation of Bosonic Gases in Traps
L. Santos, Z. Idziaszek, J. I. Cirac +1
We consider collective laser cooling of atomic gas in the Festina lente regime, when the heating effects associated with photon reabsorptions are suppressed. We demonstrate that an…
Operational criterion and constructive checks for the separability of low rank density matrices
Pawel Horodecki, Maciej Lewenstein, Guifré Vidal +1
We consider low rank density operators supported on a Hilbert space for arbitrary and () and with a positive partial transpose (PPT) $\varrho…
Bound entanglement and continuous variables
Pawel Horodecki, Maciej Lewenstein
We introduce the definition of generic bound entanglement for the case of continuous variables. We provide some examples of bound entangled states for that case, and discuss their…