Matches in SemOpenAlex for { <https://semopenalex.org/work/W2888049786> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W2888049786 endingPage "257" @default.
- W2888049786 startingPage "239" @default.
- W2888049786 abstract "We study the role of zero-point quantum fluctuations in a range of magnetic states which on the classical level are close to spin-aligned ferromagnets. These include Skyrmion textures characterized by non-zero topological charge, and topologically-trivial spirals arising from the competition of the Heisenberg and Dzyaloshinskii-Moriya interactions. For the former, we extend our previous results on quantum exactness of classical Bogomolny-Prasad-Sommerfield (BPS) ground-state degeneracies to the general case of Kahler manifolds, with a specific example of Grassmann manifolds $mathrm{Gr(M,N)}$. These are relevant to quantum Hall ferromagnets with $mathrm{N}$ internal states and integer filling factor $mathrm{M}$. A promising candidate for their experimental implementation is monolayer graphene with $mathrm{N=4}$ corresponding to spin and valley degrees of freedom at the charge neutrality point with $mathrm{M=2}$ filled Landau levels. We find that the vanishing of the zero-point fluctuations in taking the continuum limit occurs differently in the case of BPS states compared to the case of more general smooth textures, with the latter exhibiting more pronounced lattice effects. This motivates us to consider the vanishing of zero-point fluctuations in such near-ferromagnets more generally. We present a family of lattice spin models for which the vanishing of zero-point fluctuations is evident, and show that some spirals can be thought of as having nonzero but weak zero-point fluctuations on account of their closeness to this family. Between them, these instances provide concrete illustrations of how the Casimir energy, dependent on the full UV-structure of the theory, evolves as the continuum limit is taken." @default.
- W2888049786 created "2018-08-31" @default.
- W2888049786 creator A5021929803 @default.
- W2888049786 creator A5042711934 @default.
- W2888049786 creator A5043804822 @default.
- W2888049786 date "2018-12-01" @default.
- W2888049786 modified "2023-10-13" @default.
- W2888049786 title "Zero point fluctuations for magnetic spirals and Skyrmions, and the fate of the Casimir energy in the continuum limit" @default.
- W2888049786 cites W1986671847 @default.
- W2888049786 cites W2003022923 @default.
- W2888049786 cites W2019201560 @default.
- W2888049786 cites W2032680462 @default.
- W2888049786 cites W2048639010 @default.
- W2888049786 cites W2057381843 @default.
- W2888049786 cites W2111408625 @default.
- W2888049786 cites W2263371084 @default.
- W2888049786 doi "https://doi.org/10.1016/j.aop.2018.10.008" @default.
- W2888049786 hasPublicationYear "2018" @default.
- W2888049786 type Work @default.
- W2888049786 sameAs 2888049786 @default.
- W2888049786 citedByCount "3" @default.
- W2888049786 countsByYear W28880497862020 @default.
- W2888049786 countsByYear W28880497862021 @default.
- W2888049786 countsByYear W28880497862023 @default.
- W2888049786 crossrefType "journal-article" @default.
- W2888049786 hasAuthorship W2888049786A5021929803 @default.
- W2888049786 hasAuthorship W2888049786A5042711934 @default.
- W2888049786 hasAuthorship W2888049786A5043804822 @default.
- W2888049786 hasBestOaLocation W28880497864 @default.
- W2888049786 hasConcept C106881136 @default.
- W2888049786 hasConcept C115260700 @default.
- W2888049786 hasConcept C121332964 @default.
- W2888049786 hasConcept C141886431 @default.
- W2888049786 hasConcept C200369452 @default.
- W2888049786 hasConcept C26873012 @default.
- W2888049786 hasConcept C37914503 @default.
- W2888049786 hasConcept C50899005 @default.
- W2888049786 hasConcept C53104380 @default.
- W2888049786 hasConcept C62520636 @default.
- W2888049786 hasConcept C84114770 @default.
- W2888049786 hasConcept C88020606 @default.
- W2888049786 hasConceptScore W2888049786C106881136 @default.
- W2888049786 hasConceptScore W2888049786C115260700 @default.
- W2888049786 hasConceptScore W2888049786C121332964 @default.
- W2888049786 hasConceptScore W2888049786C141886431 @default.
- W2888049786 hasConceptScore W2888049786C200369452 @default.
- W2888049786 hasConceptScore W2888049786C26873012 @default.
- W2888049786 hasConceptScore W2888049786C37914503 @default.
- W2888049786 hasConceptScore W2888049786C50899005 @default.
- W2888049786 hasConceptScore W2888049786C53104380 @default.
- W2888049786 hasConceptScore W2888049786C62520636 @default.
- W2888049786 hasConceptScore W2888049786C84114770 @default.
- W2888049786 hasConceptScore W2888049786C88020606 @default.
- W2888049786 hasFunder F4320320879 @default.
- W2888049786 hasFunder F4320334627 @default.
- W2888049786 hasLocation W28880497861 @default.
- W2888049786 hasLocation W28880497862 @default.
- W2888049786 hasLocation W28880497863 @default.
- W2888049786 hasLocation W28880497864 @default.
- W2888049786 hasLocation W28880497865 @default.
- W2888049786 hasLocation W28880497866 @default.
- W2888049786 hasOpenAccess W2888049786 @default.
- W2888049786 hasPrimaryLocation W28880497861 @default.
- W2888049786 hasRelatedWork W132624750 @default.
- W2888049786 hasRelatedWork W1540608546 @default.
- W2888049786 hasRelatedWork W2021663868 @default.
- W2888049786 hasRelatedWork W2143704435 @default.
- W2888049786 hasRelatedWork W2380326873 @default.
- W2888049786 hasRelatedWork W3092864203 @default.
- W2888049786 hasRelatedWork W3215349535 @default.
- W2888049786 hasRelatedWork W4225920808 @default.
- W2888049786 hasRelatedWork W823605370 @default.
- W2888049786 hasRelatedWork W2026407404 @default.
- W2888049786 hasVolume "399" @default.
- W2888049786 isParatext "false" @default.
- W2888049786 isRetracted "false" @default.
- W2888049786 magId "2888049786" @default.
- W2888049786 workType "article" @default.