1.3k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Polish Academy of SciencesPL175 papers
- Institute of PhysicsPL21 papers
- ETH ZurichCH17 papers
- B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of UkraineUA15 papers
- Laboratory for Solid State PhysicsCH14 papers
- Institute of Molecular Physics of the Polish Academy of SciencesPL13 papers
- University of Central FloridaUS11 papers
- Karlsruhe Institute of TechnologyDE10 papers
- University of ZurichCH10 papers
- Los Alamos National LaboratoryUS9 papers
- AGH University of KrakowPL8 papers
- International Laboratory of High Magnetic Fields and Low TemperaturesPL8 papers
14 papers · 1 filter
Density of states and excitonic condensation in the double layer correlated systems
V. Apinyan, T. K. Kopeć
We consider the single-particle density of states (DOS) in the strongly correlated double layer (DL) system, without applied external fields. We demonstrate an unusual collapse eff…
An Explicit Rate Bound for the Over-Relaxed ADMM
Guilherme França, José Bento
The framework of Integral Quadratic Constraints of Lessard et al. (2014) reduces the computation of upper bounds on the convergence rate of several optimization algorithms to semi-…
Finite temperature superfluid transition of strongly-correlated lattice bosons in various geometries
T. A. Zaleski, T. K. Kopec
We study finite-temperature properties of the strongly interacting bosons in three-dimensional lattices by employing the combined Bogoliubov method and the quantum rotor approach.…
Temperature-dependent excitation spectra of ultra-cold bosons in optical lattices
T. A. Zaleski, T. K. Kopec
Trapping ultra-cold atoms in optical lattices provides a unique environment for investigating quantum phase transitions between strongly correlated superfluid and Mott insulator ph…
Measure and collapse of participatory democracy in a two-party system
Jozef Sznajd
Measure what is measurable, and make measurable what is not so (Galileo Galilei). According to the above sentence we do not ask why we need to measure democracy but if it is possib…
Quasi-two-dimensional Fermi surfaces of the heavy-fermion superconductor CePdIn
K. Götze, J. Klotz, D. Gnida +7
We report low-temperature de Haas-van Alphen (dHvA) effect measurements in magnetic fields up to 35 T of the heavy-fermion superconductor CePdIn. The comparison of the expe…
Change of the charge modulation during superconducting transition in SmFeAsO(0.91)F(0.09) seen by 57Fe Mössbauer spectroscopy
A. K. Jasek, K. Komedera, A. Blachowski +4
Iron-based superconductor SmFeAsO(0.91)F(0.09) has been investigated by the 57Fe Moessbauer spectroscopy versus temperature with the special attention paid to the region of the sup…
Excitonic gap formation in neutral bilayer structures
V. Apinyan, T. K. Kopeć
We consider the pairing between conduction band electrons, and the valence band holes in the neutral bilayer-type structures. By employing the bilayer Hubbard model, we show the po…
Probing phase coherence via density of states for strongly correlated excitons
V. Apinyan, T. K. Kopeć
We present the calculation of the coherent spectral functions and density of states (DOS) for excitonic systems in the frame of the three dimensional extended Falicov-Kimball model…
The superfluid phase transition in two-dimensional excitonic systems
V. Apinyan, T. K. Kopeć
We study the superfluid phase transition in the two-dimensional (2D) excitonic system. Employing the extended Falicov-Kimball model (EFKM) and considering the local quantum correla…
Anisotropy of electric resistance and upper critical field in magnetic superconductor DyYRhRuB
A. V. Terekhov, I. V. Zolochevskii, E. V. Khristenko +5
We have measured temperature dependencies of the electric resistance and upper critical magnetic field of a magnetic superconductor DyYRhRu$_{…
Violation of the Wiedemann-Franz law as an evidence of the pseudogap in the iron-based superconductor Ba(Fe1-xCox)2As2
Marcin Matusiak, Thomas Wolf
Longitudinal and transverse transport coefficients of the Ba(Fe1-xCox)2As2 single crystals with x = 0, 0.045, 0.06 and 0.244 were measured in the temperature range 1.4 - 300 K and…
Direct evidence for the emergence of a pressure induced nodal superconducting gap in the iron-based superconductor Ba_0.65Rb_0.35Fe_2As_2
Zurab Guguchia, Alex Amato, Jian Kang +10
Identifying the superconducting (SC) gap structure of the iron-based high-temperature superconductors (Fe-HTS's) remains a key issue for the understanding of superconductivity in t…
Wiedemann-Franz law in the underdoped cuprate superconductor YBa2Cu3Oy
G. Grissonnanche, F. Laliberte, S. Dufour-Beausejour +16
The recent detection of charge-density modulations in YBa2Cu3Oy and other cuprate superconductors raises new questions about the normal state of underdoped cuprates. In one class o…