3.4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Slovak Academy of SciencesSK625 papers
- Czech Academy of SciencesCZ82 papers
- Masaryk UniversityCZ80 papers
- Centre National de la Recherche ScientifiqueFR78 papers
- Joint Institute for Nuclear ResearchRU74 papers
- University of Pavol Jozef ŠafárikSK62 papers
- Institute of Chemistry of the Slovak Academy of SciencesSK60 papers
- Charles UniversityCZ54 papers
- Comenius University BratislavaSK46 papers
- RIKEN Center for Emergent Matter ScienceJP45 papers
- University of BaselCH43 papers
- Université Paris-SudFR38 papers
31 papers · 1 filter
Non-linear spin to charge conversion in mesoscopic structures
Peter Stano, Jaroslav Fabian, Philippe Jacquod
Motivated by recent experiments [Vera-Marun et al., arXiv:1109.5969], we formulate a non-linear theory of spin transport in quantum coherent conductors. We show how a mesoscopic co…
Exactly solvable models and spontaneous symmetry breaking
Lubomir Martinovic
We study a few two-dimensional models with massive and massless fermions in the hamiltonian framework and in both conventional and light-front forms of field theory. The new ingred…
Hamiltonian formulation of exactly solvable models and their physical vacuum states
Lubomir Martinovic, Pierre Grange
We clarify a few conceptual problems of quantum field theory on the level of exactly solvable models with fermions. The ultimate goal of our study is to gain a deeper understanding…
Strong-coupling theory for a polarizable planar colloid
L. Samaj, E. Trizac
We propose a strong-coupling analysis of a polarizable planar interface, in the spirit of a recently introduced Wigner-Crystal formulation. The system is made up of two moieties: a…
Theory of Spin Relaxation in Two-Electron Lateral Coupled Quantum Dots
Martin Raith, Peter Stano, Fabio Baruffa +1
A global quantitative picture of the phonon-induced two-electron spin relaxation in GaAs double quantum dots is presented using highly accurate numerical calculations. Wide regimes…
Achieving perfect completeness in classical-witness quantum Merlin-Arthur proof systems
Stephen P. Jordan, Hirotada Kobayashi, Daniel Nagaj +1
This paper proves that classical-witness quantum Merlin-Arthur proof systems can achieve perfect completeness. That is, QCMA = QCMA1. This holds under any gate set with which the H…
Low-temperature structure of xi'-Al-Pd-Mn optimized by ab-initio methods
Benjamin Frigan, Alejandro Santana, Michael Engel +3
We have studied and resolved occupancy correlations in the existing average structure model of the complex metallic alloy xi'-Al-Pd-Mn [Boudard et al., Phil. Mag. A, 74, 939 (1996)…
Local two-qubit entanglement-annihilating channels
Sergey N. Filippov, Tomas Rybar, Mario Ziman
We address the problem of the robustness of entanglement of bipartite systems (qubits) interacting with dynamically independent environments. In particular, we focus on characteriz…
Empirical oscillating potentials for alloys from ab-initio fits and the prediction of quasicrystal-related structures in the Al-Cu-Sc system
M. Mihalkovic, C. L. Henley
By fitting to a database of ab-initio forces and energies, we can extract pair potentials for alloys, with a simple six-parameter analytic form including Friedel oscillations, whic…
Two-photon exchange and elastic scattering of longitudinally polarized electron on polarized deuteron
Alexander P. Kobushkin, Yaroslav D. Krivenko-Emetov, Stanislav Dubnicka +1
Structure functions and polarization observables in elastic scattering of longitudinally polarized electron on polarized deuteron are considered within approximation of one-photon…
Oscillations of simple networks
Jean-Guy Caputo, Arnaud Knippel, Elie Simo
To describe the flow of a miscible quantity on a network, we introduce the graph wave equation where the standard continuous Laplacian is replaced by the graph Laplacian. This is a…
Yang-Mills Theory in lambda-Gauges
Axel Maas, Tereza Mendes, Stefan Olejnik
The gauge-independent phenomenon of color confinement in Yang-Mills theory manifests itself differently in different gauges. Therefore, the gauge dependence of quantities related t…
Optimized t-expansion method for the Rabi Hamiltonian
Igor Travenec, Ladislav Samaj
A polemic arose recently about the applicability of the -expansion method to the calculation of the ground state energy of the Rabi model. For specific choices of the tria…
Exclusive production of the BSM Higgs bosons at the LHC
S. Heinemeyer, V. A. Khoze, M. G. Ryskin +2
We review the prospects for Central Exclusive Production (CEP) of BSM Higgs bosons at the LHC using forward proton detectors proposed to be installed at 220 m and 420 m from the AT…
Monopoles in the Plaquette Formulation of the 3D SU(2) Lattice Gauge Theory
O. Borisenko, S. Voloshyn, J. Boháčik
Using a plaquette formulation for lattice gauge models we describe monopoles of the three dimensional SU(2) theory which appear as configurations in the complete axial gauge and vi…
Scavenging quantum information: Multiple observations of quantum systems
Peter Rapcan, John Calsamiglia, Ramon Munoz-Tapia +2
Given an unknown state of a qudit that has already been measured optimally, can one still extract any information about the original unknown state? Clearly, after a maximally infor…
Survival probability (heat content) and the lowest eigenvalue of Dirichlet Laplacian
P. Kalinay, L. Samaj, I. Travenec
We study the survival probability of a particle diffusing in a two-dimensional domain, bounded by a smooth absorbing boundary. The short-time expansion of this quantity depends on…
Effective one-dimensional description of confined diffusion biased by a transverse gravitational force
Pavol Kalinay
Diffusion of point-like non interacting particles in a two-dimensional (2D) channel of varying cross section is considered. The particles are biased by a constant force in the tran…
Adjoint torelons, and the persistence of color electric flux tubes in the deconfined phase
J. Greensite, S. Olejnik
It is argued that the adjoint torelon loop, i.e. a Polyakov loop in the adjoint representation running in a spatial, rather than temporal, direction, is an observable which is sens…
One-photon decay of the tetraquark state in a relativistic constituent quark model with infrared confinement
Stanislav Dubnicka, Anna Z. Dubnickova, Mikhail A. Ivanov +3
We further explore the consequences of treating the X(3872) meson as a tetraquark bound state by analyzing its one-photon decay X => γ+ J/psi in the framework of our approach devel…
Measuring Spin Accumulations with Current Noise
Jonathan Meair, Peter Stano, Philippe Jacquod
We investigate the time-dependent fluctuations of the electric current injected from a reservoir with a non-equilibrium spin accumulation into a mesoscopic conductor. We show how t…
The Entropic Uncertainty Principle for Decaying Systems and CP violation
Beatrix C. Hiesmayr
Employing an effective formalism for decaying system we are able to investigate Heisenberg's uncertainty relation for observables measured at accelerator facilities. In particular…
The Nuclear Science References (NSR) Database and Web Retrieval System
B. Pritychenko, E. Betak, M. A. Kellett +2
The Nuclear Science References (NSR) database together with its associated Web interface, is the world's only comprehensive source of easily accessible low- and intermediate-energy…
Purification of genuine multipartite entanglement
Marcus Huber, Martin Plesch
In tasks, where multipartite entanglement plays a central role, state purification is, due to inevitable noise, a crucial part of the procedure. We consider a scenario exploiting t…