Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2k papers
- Vrije Universiteit BrusselBE1.8k papers
- University of Maryland, College ParkUS1.7k papers
- RWTH Aachen UniversityDE1.6k papers
- Massachusetts Institute of TechnologyUS1.6k papers
- University of Wisconsin–MadisonUS1.5k papers
- The Ohio State UniversityUS1.5k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.5k papers
- University of KansasUS1.5k papers
- UCLouvainBE1.5k papers
- Sungkyunkwan UniversityKR1.5k papers
- Universität HamburgDE1.5k papers
11 papers · 2 filters
Optimal cloning of coherent states with a linear amplifier and beam splitters
Samuel L. Braunstein, Nicolas J. Cerf, Sofyan Iblisdir +2
A transformation achieving the optimal symmetric N-to-M cloning of coherent states is presented. Its implementation only requires a phase-insensitive linear amplifier and a network…
Phase Conjugation of Continuous Quantum Variables
N. J. Cerf, S. Iblisdir
The phase conjugation of an unknown Gaussian state cannot be realized perfectly by any physical process. A semi-classical argument is used to derive a tight lower bound on the nois…
On the level spacing distribution in quantum graphs
F. Barra, P. Gaspard
We derive a formula for the level spacing probability distribution in quantum graphs. We apply it to simple examples and we discuss its relation with previous work and its possible…
Classical simulation of quantum entanglement without local hidden variables
Serge Massar, Dave Bacon, Nicolas Cerf +1
Recent work has extended Bell's theorem by quantifying the amount of communication required to simulate entangled quantum systems with classical information. The general scenario i…
Quantum Distribution of Gaussian Keys with Squeezed States
N. J. Cerf, M. Levy, G. Van Assche
A continuous key distribution scheme is proposed that relies on a pair of canonically conjugate quantum variables. It allows two remote parties to share a secret Gaussian key by en…
A logical description for perfect measurements
Bob Coecke, Sonja Smets
We reconsider the description for property transitions due to perfect measurements, viewing them as a special case of general transitions that are due to an externally imposed chan…
The Liar-paradox in a Quantum Mechanical Perspective
Diederik Aerts, Jan Broekaert, Sonja Smets
In this paper we concentrate on the nature of the liar paradox as a cognitive entity; a consistently testable configuration of properties. We elaborate further on a quantum mechani…
Collective versus local measurements on two parallel or antiparallel spins
S. Massar
We give a complete analysis of covariant measurements on two spins. We consider the cases of two parallel and two antiparallel spins, and we consider both collective measurements o…
Optimal N-to-M Cloning of Quantum Coherent States
N. J. Cerf, S. Iblisdir
The cloning of continuous quantum variables is analyzed based on the concept of Gaussian cloning machines, i.e., transformations that yield copies that are Gaussian mixtures center…
PT-symmetric sextic potentials
B. Bagchi, F. Cannata, C. Quesne
The family of complex PT-symmetric sextic potentials is studied to show that for various cases the system is essentially quasi-solvable and possesses real, discrete energy eigenval…
"Interaction-free" discrimination between semi-transparent objects
Graeme Mitchison, Serge Massar
Absorption-free (also known as ``interaction-free'') measurement aims to detect the presence of an opaque object using a test particle without that particle being absorbed by the o…