Institute of Physics of the Slovak Academy of Sciences

output

19942026

most citedQuantum secret sharing

3.4k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2021Show all

39 papers · 1 filter

cond-mat.stat-mech2021★ 1 cited

XY model with competing higher-order interactions

Milan Žukovič, Georgii Kalagov

We study effects of competing pairwise higher-order interactions (HOI) with alternating signs and exponentially decreasing intensity on critical behavior of the XY model. It is fou…

quant-ph2021★ 5 cited

Random access test as an identifier of nonclassicality

Teiko Heinosaari, Leevi Leppäjärvi

Random access codes are an intriguing class of communication tasks that reveal an operational and quantitative difference between classical and quantum information processing. We f…

quant-ph2021★ 1 cited

Best-practice aspects of quantum-computer calculations: A case study of hydrogen molecule

Ivana Miháliková, Martin Friák, Matej Pivoluska +3

Quantum computers are reaching one crucial milestone after another. Motivated by their progress in quantum chemistry, we have performed an extensive series of simulations of quantu…

hep-ph2021★ 1 cited

Coupled-channel analysis of the process $γ γ \to π^{0} π^{0}$

Yury S. Surovtsev, Petr Bydžovský, Thomas Gutsche +3

We study the process $γ γ \to π^{0} π^{0}$ involving the principle mechanisms, the structure of its cross section and the role of individual isoscalar-tensor resonances in the saturation o…

cond-mat.stat-mech2021

Ising ferromagnets and antiferromagnets in an imaginary magnetic field

Roman Krčmár, Andrej Gendiar, Ladislav Šamaj

We study classical Ising spin- $\frac{1}{2}$ models on the 2D square lattice with ferromagnetic or antiferromagnetic nearest-neighbor interactions, under the effect of a pure imagin…

quant-ph2021★ 18 cited

Self-testing quantum states via nonmaximal violation in Hardy's test of nonlocality

Ashutosh Rai, Matej Pivoluska, Souradeep Sasmal +3

Self-testing protocols enable certification of quantum devices without demanding full knowledge about their inner workings. A typical approach in designing such protocols is based…

physics.optics2021★ 7 cited

Bound state in the continuum in an anisotropic photonic crystal supported by full-wave phase plate

Pavel S. Pankin, Dmitrii N. Maksimov, Ivan V. Timofeev

We consider bound states in the continuum (BICs) in a 1D multilayered system of an anisotropic defect layer embedded into an anisotropic photonic crystal. We analytically demonstra…

nucl-th2021★ 16 cited

Isoscalar giant monopole resonance in $^{24}$ Mg and $^{28}$ Si: Effect of coupling between the isoscalar monopole and quadrupole strength

A. Bahini, V. O. Nesterenko, I. T. Usman +25

Background: In highly deformed nuclei, there is a noticeable coupling of the Isoscalar Giant Monopole Resonance (ISGMR) and the $K = 0$ component of the Isoscalar Giant Quadrupole…

cond-mat.mtrl-sci2021★ 45 cited

Origin of relaxor behavior in barium-titanate based lead-free perovskites

Vignaswaran Veerapandiyan, Maxim N. Popov, Florian Mayer +12

It is well known that disordered relaxor ferroelectrics exhibit local polar correlations. The origin of localized fields that disrupt long range polar order for different substitut…

quant-ph2021★ 25 cited

The Cost of Improving the Precision of the Variational Quantum Eigensolver for Quantum Chemistry

Ivana Miháliková, Matej Pivoluska, Martin Plesch +3

Quantum computing brings a promise of new approaches into computational quantum chemistry. While universal, fault-tolerant quantum computers are still not available, we want to uti…

hep-ex2021★ 60 cited

Three-year annual modulation search with COSINE-100

100 Collaboration, G. Adhikari, E. Barbosa de Souza +55

COSINE-100 is a direct detection dark matter experiment that aims to test DAMA/LIBRA's claim of dark matter discovery by searching for a dark matter-induced annual modulation signa…

quant-ph2021★ 9 cited

Measurement disturbance and conservation laws in quantum mechanics

M. Hamed Mohammady, Takayuki Miyadera, Leon Loveridge

Measurement error and disturbance, in the presence of conservation laws, are analysed in general operational terms. We provide novel quantitative bounds demonstrating necessary con…

hep-ex2021★ 3 cited

Searching for low-mass dark matter via Migdal effect in COSINE-100

G. Adhikari, N. Carlin, J. J. Choi +53

We report on the search for weakly interacting massive particle (WIMP) dark matter candidates in the galactic halo that interact with sodium and iodine nuclei in the COSINE-100 exp…

cond-mat.str-el2021★ 2 cited

Energy Scale Deformation on Regular Polyhedra

Takuya Eguchi, Satoshi Oga, Hosho Katsura +2

A variant of energy scale deformation is considered for the S = 1/2 antiferromagnetic Heisenberg model on polyhedra. The deformation is induced by the perturbations to the uniform…

astro-ph.EP2021★ 16 cited

Properties of slowly rotating asteroids from the Convex Inversion Thermophysical Model

A. Marciniak, J. Ďurech, V. Alí-Lagoa +73

Results from the TESS mission showed that previous studies strngly underestimated the number of slow rotators, revealing the importance of studying those asteroids. For most slowly…

cond-mat.str-el2021★ 7 cited

Charge ordering mechanism in silver fluoride AgF $_{2}$

Mariana Derzsi, Kamil Tokár, Przemysław Piekarz +1

Using Density Functional Theory, competition between Mott-Hubbard and intervalence charge transfer mechanism of electron localization is revealed in AgF $_{2}$ , an important silver an…

cond-mat.mtrl-sci2021★ 1 cited

Planar defect in approximant: the case of Cu-Al-Sc alloy

Tsutomu Ishimasa, Yeong-Gi So, Marek Mihalkovič

The {110} planar defect formed in the Cu-Al-Sc 1/1 approximant has been studied by means of electron microscopy and 6-dimensional analysis. As the displacement vector of the planar…

quant-ph2021★ 5 cited

Geometric Bloch Vector Solution to Minimum Error Discriminations of Mixed Qubit States

Mahdi Rouhbakhsh N., Seyed Arash Ghoreishi

We investigate minimum-error (ME) discrimination for mixed qubit states using a geometric approach. By analyzing positive operator-valued measure (POVM) solutions and introducing L…

cond-mat.mes-hall2021★ 97 cited

Twist-angle dependent proximity induced spin-orbit coupling in graphene/transition-metal dichalcogenide heterostructures

Thomas Naimer, Klaus Zollner, Martin Gmitra +1

We investigate the proximity-induced spin-orbit coupling in heterostructures of twisted graphene and monolayers of transition-metal dichalcogenides (TMDCs) MoS $_{2}$ , WS $_{2}$ , MoSe$_2…

astro-ph.SR2021★ 19 cited

Spectroscopic and photometric analysis of symbiotic candidates -- I. Ten candidates on classical symbiotic stars

J. Merc, R. Gális, M. Wolf +10

Symbiotic stars belong to a group of interacting binaries that display a wide variety of phenomena, including prominent outbursts connected with mass transfer, as well as stellar w…

math-ph2021★ 7 cited

Three-dimensional lattice ground states for Riesz and Lennard-Jones type energies

Laurent Bétermin, Ladislav Šamaj, Igor Travěnec

The Riesz potential $f_{s} (r) = r^{- s}$ is known to be an important building block of many interactions, including Lennard-Jones type potentials $f_{n,m}^{\rm{LJ}}(r):=a r^{-n}-b r^{-m…

cond-mat.mes-hall2021★ 43 cited

Helical Liquids in Semiconductors

Chen-Hsuan Hsu, Peter Stano, Jelena Klinovaja +1

One-dimensional helical liquids can appear at boundaries of certain condensed matter systems. Two prime examples are the edge of a quantum spin Hall insulator and the hinge of a th…