Zobrazeno 1 - 10
of 250
pro vyhledávání: '"Yudin, D. A."'
Publikováno v:
Phys. Rev. A 109, 012436 (2024)
We propose a technique for optimizing parameterized circuits in variational quantum algorithms based on the probabilistic tensor sampling optimization. This method allows one to relax random initialization issues or heuristics for generating initial
Externí odkaz:
http://arxiv.org/abs/2310.10360
Publikováno v:
Phys. Chem. Chem. Phys. 25, 5501 (2023)
Employing density functional theory calculations we explore initial stage of competitive alloying of co-deposited silver and indium atoms into a silicon surface. Particularly, we identify respective adsorption positions and activation barriers govern
Externí odkaz:
http://arxiv.org/abs/2209.10463
Publikováno v:
Phys. Chem. Chem. Phys. 24, 24317 (2022)
In itinerant magnets, the indirect exchange coupling of Ruderman-Kittel-Kasuya-Yosida type is known to stabilize incommensurate spin spiral. Whereas an account of higher order spin interactions favors the formation of a noncoplanar magnetic texture.
Externí odkaz:
http://arxiv.org/abs/2207.00284
Publikováno v:
Phys. Rev. B 104, 235156 (2021)
The Shastry-Sutherland model and its generalizations have been shown to capture emergent complex magnetic properties from geometric frustration in several quasi-two-dimensional quantum magnets. Using an $sd$ exchange model, we show here that metallic
Externí odkaz:
http://arxiv.org/abs/2109.07973
Publikováno v:
Phys. Rev. B 104, 245102 (2021)
We provide a systematic analysis of finite-temperature magnetic properties of random alloys Fe$_x$Ni$_{1-x}$ with the face-centered-cubic structure over a broad concentration range $x$. By means of the spin-polarized relativistic Korringa-Kohn-Rostok
Externí odkaz:
http://arxiv.org/abs/2106.08765
Publikováno v:
J. Phys. Complex. 1 (2020) 03LT01
The numerical emulation of quantum systems often requires an exponential number of degrees of freedom which translates to a computational bottleneck. Methods of machine learning have been used in adjacent fields for effective feature extraction and d
Externí odkaz:
http://arxiv.org/abs/2005.02104
Autor:
Baglai, M., Sokolewicz, R. J., Pervishko, A., Katsnelson, M. I., Eriksson, O., Yudin, D., Titov, M.
Publikováno v:
Phys. Rev. B 101, 104403 (2020)
Giant Gilbert damping anisotropy is identified as a signature of strong Rashba spin-orbit coupling in a two-dimensional antiferromagnet on a honeycomb lattice. The phenomenon originates in spin-orbit induced splitting of conduction electron subbands
Externí odkaz:
http://arxiv.org/abs/1911.03408
Publikováno v:
Phys. Rev. B 100, 214403 (2019)
Recent experiments on switching antiferromagnetic domains by electric current pulses have attracted a lot of attention to spin-orbit torques in antiferromagnets. In this work, we employ the tight-binding model solver, kwant, to compute spin-orbit tor
Externí odkaz:
http://arxiv.org/abs/1908.11354
Publikováno v:
Phys. Rev. B 97, 235121 (2018)
Recently, it was shown both theoretically and experimentally that certain three-dimensional (3D) materials have Dirac points in the Brillouin zone, thus being 3D analogs of graphene. Moreover, it was suggested that under specific conditions a pair of
Externí odkaz:
http://arxiv.org/abs/1801.04448
Publikováno v:
Phys. Rev. B 99, 140411 (2019)
The two-dimensional Heisenberg exchange model with out-of-plane anisotropy and a Dzyaloshinskii-Moriya interaction is employed to investigate the lifetime and stability of antiferromagnetic (AFM) skyrmions as a function of temperature and external ma
Externí odkaz:
http://arxiv.org/abs/1709.04454