947 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Chalmers University of TechnologySE951 papers
- Centre National de la Recherche ScientifiqueFR125 papers
- KTH Royal Institute of TechnologySE116 papers
- Nicolaus Copernicus Astronomical CenterPL57 papers
- Stockholm UniversitySE53 papers
- Uppsala UniversitySE46 papers
- Lund UniversitySE42 papers
- Silesian University in OpavaCZ38 papers
- Heriot-Watt UniversityGB37 papers
- University College LondonGB33 papers
- B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of UkraineUA32 papers
- The Open UniversityGB30 papers
55 papers · 1 filter
Theory of non-Abelian Fabry-Perot interferometry in topological insulators
Johan Nilsson, A. R. Akhmerov
Interferometry of non-Abelian edge excitations is a useful tool in topological quantum computing. In this paper we present a theory of a non-Abelian edge state interferometer in a…
Oscillatory transient regime in the forced dynamics of a spin torque nano-oscillator
Yan Zhou, Vasil Tiberkevich, Ezio Iacocca +2
We demonstrate that the transient non-autonomous dynamics of a spin torque nano-oscillator (STNO) under a radio-frequency (rf) driving signal is qualitatively different from the dy…
Some recursive formulas for Selberg-type integrals
Sergio Iguri, Toufik Mansour
A set of recursive relations satisfied by Selberg-type integrals involving monomial symmetric polynomials are derived, generalizing previously known results. These formulas provide…
Extracting strong measurement noise from stochastic series: applications to empirical data
Pedro G. Lind, Maria Haase, Frank Böttcher +3
It is a big challenge in the analysis of experimental data to disentangle the unavoidable measurement noise from the intrinsic dynamical noise. Here we present a general operationa…
Sums and differences of four k-th powers
Oscar Marmon
We prove an upper bound for the number of representations of a positive integer as the sum of four -th powers of integers of size at most , using a new version of the Det…
Sample genealogies and genetic variation in populations of variable size
A. Eriksson, B. Mehlig, M. Rafajlovic +1
We consider neutral evolution of a large population subject to changes in its population size. For a population with a time-variable carrying capacity we have computed the distribu…
The structure of thin accretion discs around magnetised stars
Solomon Belay Tessema, Ulf Torkelsson
Aims: We determine the steady-state of an axisymmetric thin accretion disc with an internal dynamo around a magnetised star. Methods: Starting from the vertically integrated equati…
Schur and operator multipliers
I. G. Todorov, L. Turowska
Schur multipliers were introduced by Schur in the early 20th century and have since then found a considerable number of applications in Analysis and enjoyed an intensive developmen…
Variational approach to transport in quantum dots
Nicola Lanatà
We have derived a variational principle that defines the nonequilibrium steady-state transport across a correlated impurity mimicking, e.g., a quantum dot coupled to biased leads.…
Conjugacy of real diffeomorphisms. A survey
Anthony G. O'Farrell, Maria Roginskaya
Given a group G, the conjugacy problem in G is the problem of giving an effective procedure for determining whether or not two given elements f, g of G are conjugate, i.e. whether…
The three-colour model with domain wall boundary conditions
Hjalmar Rosengren
We study the partition function for the three-colour model with domain wall boundary conditions. We express it in terms of certain special polynomials, which can be constructed rec…
Emergent order in rheoscopic swirls
Michael Wilkinson, Vlad Bezuglyy, Bernhard Mehlig
We discuss the reflection of light by a rheoscopic fluid (a suspension of microscopic rod-like crystals) in a steady two-dimensional flow. This is determined by an order parameter…
New -Matrices for Lie Bialgebra Structures over Polynomials
Iulia Pop, Julia Yermolova-Magnusson
For a finite dimensional simple complex Lie algebra , Lie bialgebra structures on and were classified by Montaner, Stolin and Ze…
Formation of trapped surfaces for the spherically symmetric Einstein-Vlasov system
Hakan Andreasson, Gerhard Rein
We consider the spherically symmetric, asymptotically flat, non-vacuum Einstein equations, using as matter model a collisionless gas as described by the Vlasov equation. We find ex…
Residue currents associated with weakly holomorphic functions
Richard Lärkäng
We construct Coleff-Herrera products and Bochner-Martinelli type residue currents associated with a tuple of weakly holomorphic functions, and show that these currents satisfy…
Non-linear frequency and amplitude modulation of a nano-contact spin torque oscillator
P. K. Muduli, Ye. Pogoryelov, S. Bonetti +3
We study the current controlled modulation of a nano-contact spin torque oscillator. Three principally different cases of frequency non-linearity ( being zero,…
Modeling a striped pseudogap state
M. Granath, B. M. Andersen
We study the electronic structure within a system of phase-decoupled one-dimensional superconductors coexisting with stripe spin and charge density wave order. This system has a no…
Radio emission from the high-mass X-ray binary BP Cru: first detection
M. Pestalozzi, U. Torkelsson, G. Hobbs +1
BP Cru is a well known high-mass X-ray binary composed of a late B hypergiant (Wray 977) and a neutron star, also observed as the X-ray pulsar GX 301-2. No information about emissi…
Poisson structures compatible with the cluster algebra structure in Grassmannians
Michael Gekhtman, Michael Shapiro, Alexander Stolin +1
We describe all Poisson brackets compatible with the natural cluster algebra structure in the open Schubert cell of the Grassmannian and show that any such bracket endows…
Correlation Dimension of Inertial Particles in Random Flows
Michael Wilkinson, Bernhard Mehlig, Kristian Gustavsson
We obtain an implicit equation for the correlation dimension of dynamical systems in terms of an integral over a propagator. We illustrate the utility of this approach by evaluatin…
Experimental evidence of self-localized and propagating spin wave modes in obliquely magnetized current-driven nanocontacts
Stefano Bonetti, Vasyl S. Tiberkevich, Giancarlo Consolo +5
Through detailed experimental studies of the angular dependence of spin wave excitations in nanocontact-based spin-torque oscillators, we demonstrate that two distinct spin wave mo…
The expected number of inversions after n adjacent transpositions
Mireille Bousquet-Mélou
We give a new expression for the expected number of inversions in the product of n random adjacent transpositions in the symmetric group S_{m+1}. We then derive from this expressio…
Equivariant quantization of Poisson homogeneous spaces and Kostant's problem
E. Karolinsky, A. Stolin, V. Tarasov
Let be a finite dimensional split semisimple Lie algebra and a weight of . Let be the algebra of quantized regular functions on the connected sim…
A variational approach to complex Monge-Ampere equations
R. J. Berman, S. Boucksom, V. Guedj +1
We show that degenerate complex Monge-Ampere equations in a big cohomology class of a compact Kaehler manifold can be solved using a variational method independent of Yau's theorem…