activity
19992022
most citedEntanglement detection

2.4k citations · 9.3k across the 64 of their papers we have counts for

collaborators

73 papers

quant-ph2022★ 4 cited

Stretching the limits of multiparticle entanglement

Géza Tóth

This is a perspective on "k-stretchability of entanglement, and the duality of k-separability and k-producibility" by Szilárd Szalay, published in Quantum 3, 204 (2019).

math.CO2022

Crossing lemma for the odd-crossing number

János Karl, Géza Tóth

A graph is -planar, if it can be drawn in the plane such that there is at most one crossing on every edge. It is known, that -planar graphs have at most edges. We prov…

quant-ph2019★ 36 cited

Activating hidden metrological usefulness

Géza Tóth, Tamás Vértesi, Paweł Horodecki +1

We consider bipartite entangled states that cannot outperform separable states in any linear interferometer. Then, we show that these states can still be more useful metrologically…

math.CO2018

The number of crossings in multigraphs with no empty lens

Michael Kaufmann, Janos Pach, Geza Toth +1

Let be a multigraph with vertices and edges, drawn in the plane such that any two parallel edges form a simple closed curve with at least one vertex in its interior…

math.CO2018

A crossing lemma for multigraphs

Janos Pach, Geza Toth

Let be a drawing of a graph with vertices and edges, in which no two adjacent edges cross and any pair of independent edges cross at most once. According to the cele…

quant-ph2017★ 76 cited

Quantum states with a positive partial transpose are useful for metrology

Géza Tóth, Tamás Vértesi

We show that multipartite quantum states that have a positive partial transpose with respect to all bipartitions of the particles can outperform separable states in linear interfer…