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pro vyhledávání: '"Kim, Bom Soo"'
Autor:
Kim, Bom Soo
Publikováno v:
2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers)
We observe significant, 6.5 - 12%, differences between skyrmion and antiskyrmion Hall angles in existing experimental data. To account for them, the Thiele equation is generalized with the transverse velocity component in the collective coordinate of
Externí odkaz:
http://arxiv.org/abs/2310.13646
Autor:
Kim, Bom Soo
Publikováno v:
J. Phys.: Condens. Matter, 2023
We generalize the Thiele equation with a transverse velocity to the skyrmion motion described by the collective coordinate of magnetization vector. It is applied to investigate significant disparity in the existing data sets of skyrmion and antiskyrm
Externí odkaz:
http://arxiv.org/abs/2307.07006
Autor:
Kim, Bom Soo
Publikováno v:
Phys. Lett. B 825 (2022) 136876
Entanglement and the R\'enyi entropies for Dirac fermions on 2 dimensional torus in the presence of chemical potential, current source, and topological Wilson loop are unified in a single framework by exhausting all the ingredients of the electromagn
Externí odkaz:
http://arxiv.org/abs/2201.02722
Autor:
Kim, Bom Soo
Publikováno v:
Phys. Rev. Research 2 (2020) 013268
Magnetic skyrmions are topologically stable objects that are made with a bunch of spins tightly arranged in a smooth fashion. Their topological nature provides unusual and complex transport properties, such as the skyrmion Hall effect. Extensive Hall
Externí odkaz:
http://arxiv.org/abs/2004.07326
Autor:
Kim, Bom Soo
Publikováno v:
J. Phys.: Condens. Matter 31 (2019) 383001
We review recent progresses towards an understanding of the Skyrmion Hall transport in insulating as well as conducting materials. First, we consider a theoretical breakthrough based on the quantum field theory Ward identity, a first principle analys
Externí odkaz:
http://arxiv.org/abs/1907.07696
Autor:
Kim, Bom Soo
Publikováno v:
Nucl. Phys. B 948 (2019) 114771
We study both entanglement and the R\'enyi entropies for the 2 dimensional massless Dirac fermions in the presence of topological Wilson loops, which are qualitatively different from those with a chemical potential and a current source. In the langua
Externí odkaz:
http://arxiv.org/abs/1808.09976
Publikováno v:
In Foot and Ankle Surgery October 2022 28(7):944-949
Autor:
Kim, Bom Soo
Publikováno v:
AIP Advances 8, 055601 (2018)
We discuss the contribution of magnetic Skyrmions to the Hall viscosity and propose a simple way to identify it in experiments. The topological Skyrmion charge density has a distinct signature in the electric Hall conductivity that is identified in e
Externí odkaz:
http://arxiv.org/abs/1712.05032
Autor:
Kim, Bom Soo
Publikováno v:
JHEP 1708 (2017) 041
We study the entanglement entropy, the R\'enyi entropy, and the mutual (R\'enyi) information of Dirac fermions on a 2 dimensional torus in the presence of constant gauge fields. We derive their general formulas using the equivalence between twisted b
Externí odkaz:
http://arxiv.org/abs/1706.07110