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
12 papers · 2 filters
Quantum cloning a pair of orthogonally polarized photons with linear optics
Jaromir Fiurasek, Nicolas J. Cerf
A linear optical probabilistic scheme for the optimal cloning of a pair of orthogonally-polarized photons is devised, based on single- and two-photon interferences. It consists in…
Experimentally feasible quantum erasure-correcting code for continuous variables
J. Niset, U. L. Andersen, N. J. Cerf
We devise a scheme that protects quantum coherent states of light from probabilistic losses, thus achieving the first continuous-variable quantum erasure-correcting code. If the oc…
A complex periodic QES potential and exceptional points
B. Bagchi, C. Quesne, R. Roychoudhury
We show that the complex -symmetric periodic potential , where is real and is a positive integer, is quasi-exactly solvable. For…
Uncertainty Relation for the Discrete Fourier Transform
Serge Massar, Philippe Spindel
We derive an uncertainty relation for two unitary operators which obey a commutation relation of the form UV=exp[i phi] VU. Its most important application is to constrain how much…
Exactly-solvable coupled-channel potential models of atom-atom magnetic Feshbach resonances from supersymmetric quantum mechanics
Andrey M. Pupasov, Boris F. Samsonov, Jean-Marc Sparenberg
Starting from a system of radial Schrödinger equations with a vanishing potential and finite threshold differences between the channels, a coupled exactly-solvable…
Adiabatic quantum search with atoms in a cavity driven by lasers
D. Daems, S. Guérin
We propose an implementation of the quantum search algorithm of a marked item in an unsorted list of N items by adiabatic passage in a cavity-laser-atom system. We use an ensemble…
Heisenberg-limited eavesdropping on the continuous-variable quantum cryptographic protocol with no basis switching is impossible
J. Sudjana, L. Magnin, R. Garcia-Patron +1
The Gaussian quantum key distribution protocol based on coherent states and heterodyne detection [Phys. Rev. Lett. 93, 170504 (2004)] has the advantage that no active random basis…
Quantum key distribution over 25 km with an all-fiber continuous-variable system
Jerome Lodewyck, Matthieu Bloch, Raul Garcia-Patron +8
We report on the implementation of a reverse-reconciliated coherent-state continuous-variable quantum key distribution system, with which we generated secret keys at a rate of more…
Tight bounds on the concurrence of quantum superpositions
J. Niset, N. J. Cerf
The entanglement content of superpositions of quantum states is investigated based on a measure called {\it concurrence}. Given a bipartite pure state in arbitrary dimension writte…
Uncertainty Relations for Positive Operator Valued Measures
Serge Massar
How much unavoidable randomness is generated by a Positive Operator Valued Measure (POVM)? We address this question using two complementary approaches. First we study the variance…
Device-independent security of quantum cryptography against collective attacks
Antonio Acin, Nicolas Brunner, Nicolas Gisin +3
We present the optimal collective attack on a Quantum Key Distribution (QKD) protocol in the "device-independent" security scenario, where no assumptions are made about the way the…
Experimental implementation of non-Gaussian attacks on a continuous-variable quantum key distribution system
Jerome Lodewyck, Thierry Debuisschert, Raul Garcia-Patron +3
An intercept-resend attack on a continuous-variable quantum-key-distribution protocol is investigated experimentally. By varying the interception fraction, one can implement a fami…