output
20022013
most citedQuantum ESPRESSO: a modular and open-source software project for quantum simulations of materials

29.3k citations

Showing quant-phShow all

53 papers · 1 filter

quant-ph201128 cited

Bounds for Non-Locality Distillation Protocols

Manuel Forster

Non-locality can be quantified by the violation of a Bell inequality. Since this violation may be amplified by local operations an alternative measure has been proposed - distillab…

quant-ph2011408 cited

Observation of Resonant Photon Blockade at Microwave Frequencies using Correlation Function Measurements

C. Lang, D. Bozyigit, C. Eichler +8

Creating a train of single photons and monitoring its propagation and interaction is challenging in most physical systems, as photons generally interact very weakly with other syst…

quant-ph201120 cited

Highly Entangled States With Almost No Secrecy

Matthias Christandl, Norbert Schuch, Andreas Winter

In this paper we illuminate the relation between entanglement and secrecy by providing the first example of a quantum state that is highly entangled, but from which, nevertheless,…

quant-ph201091 cited

Multi-mode mediated exchange coupling in cavity QED

S. Filipp, M. Göppl, J. M. Fink +4

Microwave cavities with high quality factors enable coherent coupling of distant quantum systems. Virtual photons lead to a transverse exchange interaction between qubits, when the…

quant-ph201032 cited

A quasipolynomial-time algorithm for the quantum separability problem

Fernando G. S. L. Brandao, Matthias Christandl, Jon Yard

We present a quasipolynomial-time algorithm for solving the weak membership problem for the convex set of separable, i.e. non-entangled, bipartite density matrices. The algorithm d…

quant-ph201084 cited

Probing the negative Wigner function of a pulsed single photon point by point

Kaisa Laiho, Katiuscia N. Cassemiro, David Gross +1

We investigate quantum properties of pulsed light fields point by point in phase space. We probe the negative region of the Wigner function of a single photon generated by the mean…