Gdańsk University of Technology

output

19962026

most citedSeparability of Mixed States: Necessary and Sufficient Conditions

3.6k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 1999 · quant-phShow all

7 papers · 2 filters

quant-ph1999★ 178 cited

Local environment can enhance fidelity of quantum teleportation

Piotr Badziag, Michal Horodecki, Pawel Horodecki +1

We show how an interaction with the environment can enhance fidelity of quantum teleportation. To this end, we present examples of states which cannot be made useful for teleportat…

quant-ph1999★ 428 cited

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…

quant-ph1999★ 4 cited

Rank Two Bipartite Bound Entangled States Do Not Exist

Pawel Horodecki, John A. Smolin, Barbara M. Terhal +1

We explore the relation between the rank of a bipartite density matrix and the existence of bound entanglement. We show a relation between the rank, marginal ranks, and distillabil…

quant-ph1999★ 344 cited

Limits for entanglement measures

Michal Horodecki, Pawel Horodecki, Ryszard Horodecki

We show that {\it any} entanglement measure $E$ suitable for the regime of high number of entangled pairs satisfies $E_{D} \leq E \leq E_{F}$ where $E_{D}$ and $E_{F}$ are entanglement of di…

quant-ph1999★ 6 cited

Von Neumann equations with time-dependent Hamiltonians and supersymmetric quantum mechanics

Marek Czachor, Heinz-Dietrich Doebner, Monika Syty +1

Starting with a time-independent Hamiltonian $h$ and an appropriately chosen solution of the von Neumann equation $i ρ ˙ (t) = [h, ρ (t)]$ we construct its binary-Darboux partner $h_1…

quant-ph1999★ 14 cited

Nonlinear von Neumann-type equations

Marek Czachor, Maciej Kuna, Sergiej B. Leble +1

We review some recent developments in the theory of nonlinear von Neumann equations. We distinguish between the von Neumann equation (which can be nonlinear) and the Liouville equa…

quant-ph1999★ 58 cited

Binding entanglement channels

Pawel Horodecki, Michal Horodecki, Ryszard Horodecki

We define the binding entanglement channel as the quantum channel through which quantum information cannot be reliably transmitted, but which can be used to share bound entanglemen…