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
13 papers · 2 filters
Optical implementation of Deutsch-Jozsa and Bernstein-Vazirani quantum algorithms in eight dimensions
E. Brainis, L. -P. Lamoureux, N. J. Cerf +3
We report on a fiber-optics implementation of the Deutsch-Jozsa and Bernstein-Vazirani quantum algorithms for 8-point functions. The measured visibility of the 8-path interferomete…
Violation of local realism vs detection efficiency
Serge Massar, Stefano Pironio
We put bounds on the minimum detection efficiency necessary to violate local realism in Bell experiments. These bounds depends of simple parameters like the number of measurement s…
Frequency down conversion through Bose condensation of light
Patrick Navez
We propose an experimental set up allowing to convert an input light of wavelengths about into an output light of a lower frequency. The basic principle of operating relie…
Combinatorics and Quantum Nonlocality
Harry Buhrman, Peter Hoyer, Serge Massar +1
We use techniques for lower bounds on communication to derive necessary conditions (in terms of detector efficiency or amount of super-luminal communication) for being able to repr…
Security of Quantum Key Distribution with Entangled Qutrits
Thomas Durt, Nicolas J. Cerf, Nicolas Gisin +1
The study of quantum cryptography and quantum non-locality have traditionnally been based on two-level quantum systems (qubits). In this paper we consider a generalisation of Ekert…
PT-symmetric square well and the associated SUSY hierarchies
B. Bagchi, S. Mallik, C. Quesne
The PT-symmetric square well problem is considered in a SUSY framework. When the coupling strength lies below the critical value where PT symmetry becomes sp…
New q-deformed coherent states with an explicitly known resolution of unity
C. Quesne
We construct a new family of q-deformed coherent states , where . These states are normalizable on the whole complex plane and continuous in their label . They…
A Zoology of Bell inequalities resistant to detector inefficiency
Serge Massar, Stefano Pironio, Jeremie Roland +1
We derive both numerically and analytically Bell inequalities and quantum measurements that present enhanced resistance to detector inefficiency. In particular we describe several…
Pseudo-Hermiticity, weak pseudo-Hermiticity and eta-orthogonality condition
B. Bagchi, C. Quesne
We discuss certain features of pseudo-Hermiticity and weak pseudo-Hermiticity conditions and point out that, contrary to a recent claim, there is no inconsistency if the correct or…
Multipartite Classical and Quantum Secrecy Monotones
N. J. Cerf, S. Massar, S. Schneider
In order to study multipartite quantum cryptography, we introduce quantities which vanish on product probability distributions, and which can only decrease if the parties carry out…
Countering Quantum Noise with Supplementary Classical Information
Jonathan Barrett
We consider situations in which i) Alice wishes to send quantum information to Bob via a noisy quantum channel, ii) Alice has a classical description of the states she wishes to se…
PT-symmetric non-polynomial oscillators and hyperbolic potential with two known real eigenvalues in a SUSY framework
B. Bagchi, C. Quesne
Extending the supersymmetric method proposed by Tkachuk to the complex domain, we obtain general expressions for superpotentials allowing generation of quasi-exactly solvable PT-sy…
Equivalence of the Siegert-pseudostate and Lagrange-mesh R-matrix methods
D. Baye, J. Goldbeter, J. -M. Sparenberg
Siegert pseudostates are purely outgoing states at some fixed point expanded over a finite basis. With discretized variables, they provide an accurate description of scattering in…