419 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Massachusetts Institute of TechnologyUS181 papers
- Vilnius UniversityLT180 papers
- Boğaziçi UniversityTR178 papers
- Deutsches Elektronen-Synchrotron DESYDE178 papers
- University of Nebraska–LincolnUS178 papers
- Bulgarian Academy of SciencesBG176 papers
- Sofia University "St. Kliment Ohridski"BG175 papers
- University of BristolGB175 papers
- University of HelsinkiFI175 papers
- University of AntwerpBE174 papers
- University of BelgradeRS174 papers
- University of Notre DameUS174 papers
21 papers · 1 filter
Symmetry-assisted adversaries for quantum state generation
Andris Ambainis, Loïck Magnin, Martin Roetteler +1
We introduce a new quantum adversary method to prove lower bounds on the query complexity of the quantum state generation problem. This problem encompasses both, the computation of…
Quantum property testing for bounded-degree graphs
Andris Ambainis, Andrew M. Childs, Yi-Kai Liu
We study quantum algorithms for testing bipartiteness and expansion of bounded-degree graphs. We give quantum algorithms that solve these problems in time O(N^(1/3)), beating the O…
Quantum computation with devices whose contents are never read
Abuzer Yakaryilmaz, Rusins Freivalds, A. C. Cem Say +1
In classical computation, a "write-only memory" (WOM) is little more than an oxymoron, and the addition of WOM to a (deterministic or probabilistic) classical computer brings no ad…
Cascade coherence transfer and magneto-optical resonances at 455 nm excitation of Cesium
Marcis Auzinsh, Ruvin Ferber, Florian Gahbauer +3
We present and experimental and theoretical study of nonlinear magneto-optical resonances observed in the fluorescence to the ground state from the 7P_{3/2} state of cesium, which…
Generation of energy selective excitations in quantum Hall edge states
C. Leicht, P. Mirovsky, B. Kaestner +7
We operate an on-demand source of single electrons in high perpendicular magnetic fields up to 30T, corresponding to a filling factor below 1/3. The device extracts and emits singl…
Energy oscillations and a possible route to chaos in a modified Riga dynamo
Frank Stefani, Agris Gailitis, Gunter Gerbeth
Starting from the present version of the Riga dynamo experiment with its rotating magnetic eigenfield dominated by a single frequency we ask for those modifications of this set-up…
Chemisorption of a molecular oxygen on the UN (001) surface: ab initio calculations
Yuri F. Zhukovskii, Dmitry Bocharov, Eugene A. Kotomin
The results of DFT GGA calculations on oxygen molecules adsorbed upon the (001) surface of uranium mononitride (UN) are presented and discussed. We demonstrate that O2 molecules or…
First principles calculations of oxygen adsorption on the UN (001) surface
Yuri F. Zhukovskii, Dmitry Bocharov, Eugene Kotomin +2
Fabrication, handling and disposal of nuclear fuel materials require comprehensive knowledge of their surface morphology and reactivity. Due to unavoidable contact with air compone…
Quantum chemistry studies of the O K-edge X-ray absorption in WO3 and AWO3
Dmitry Bocharov, Alexei Kuzmin, Juris Purans +1
In this work we present an interpretation of experimental O K-edge x-ray absorption near edge structure (XANES) in perovskite-type WO3 and AWO3 compounds (A = H and Na) using three…
Phonon Calculations in Cubic and Tetragonal Phases of SrTiO3: a Comparative LCAO and Plane Wave Study
Robert A. Evarestov, Evgeny Blokhin, Denis Gryaznov +2
The atomic, electronic structure and phonon frequencies have been calculated in a cubic and low-temperature tetragonal SrTiO3 phases at the ab initio level. We demonstrate that the…
Ab initio modeling of oxygen impurity atom incorporation into uranium mononitride surface and subsurface vacancies
Dmitry Bocharov, Denis Gryaznov, Yuri F. Zhukovskii +1
The incorporation of oxygen atoms has been simulated into either nitrogen or uranium vacancy at the UN(001) surface, sub-surface or central layers. For calculations on the correspo…
DFT calculations of point defects on UN(001) surface
Dmitry Bocharov, Denis Gryaznov, Yuri F. Zhukovskii +1
The density functional theory (DFT) is used in a study of point defects on both UN (001) surface and sub-surface layers. We compare results for slabs of different thicknesses (both…
Exact non-Hookean scaling of cylindrically bent elastic sheets and the large-amplitude pendulum
Vyacheslavs Kashcheyevs
A sheet of elastic foil rolled into a cylinder and deformed between two parallel plates acts as a non-Hookean spring if deformed normally to the axis. For large deformations the el…
Sensitivity versus block sensitivity of Boolean functions
Madars Virza
Determining the maximal separation between sensitivity and block sensitivity of Boolean functions is of interest for computational complexity theory. We construct a sequence of Boo…
Identification of Deeply Bound Heteronuclear Molecules Using Pulsed Laser Depletion Spectroscopy
P. Zabawa, A. Wakim, A. Neukirch +6
We demonstrate that a near-dissociation photoassociation resonance can be used to create a deeply bound molecular sample of ultracold NaCs. To probe the resulting vibrational distr…
New Developments in Quantum Algorithms
Andris Ambainis
In this survey, we describe two recent developments in quantum algorithms. The first new development is a quantum algorithm for evaluating a Boolean formula consisting of AND and O…
Quantum algorithms for formula evaluation
Andris Ambainis
We survey the recent sequence of algorithms for evaluating Boolean formulas consisting of NAND gates.
Density functional theory calculations on magnetic properties of actinide compounds
Denis Gryaznov, Eugene Heifets, David Sedmidubsky
We have performed a detailed analysis of the magnetic (collinear and noncollinear) order and atomic and the electron structures of UO2, PuO2 and UN on the basis of density function…
First-principles modeling of oxygen interaction with SrTiO3(001) surface: Comparative density-functional LCAO and plane-wave study
Vitaly Alexandrov, Sergei Piskunov, Yuri F. Zhukovskii +2
Large scale first-principles calculations based on density functional theory (DFT) employing two different methods (atomic orbitals and plane wave basis sets) were used to study th…
Rubidium dimers in paraffin-coated cells
V. M. Acosta, A. Jarmola, D. Windes +7
Measurements were made to determine the density of rubidium dimer vapor in paraffin-coated cells. The number density of dimers and atoms in similar paraffin-coated and uncoated cel…
Helium Behavior in Oxide Nuclear Fuels: First Principles Modeling
D. Gryaznov, S. Rashkeev, E. A. Kotomin +2
UO2 and (U,Pu)O2 solid solutions (the so-called MOX) nowadays are used as commercial nuclear fuels in many countries. One of the safety issues during the storage of these fuels is…