Matches in SemOpenAlex for { <https://semopenalex.org/work/W4280642013> ?p ?o ?g. }
Showing items 1 to 95 of
95
with 100 items per page.
- W4280642013 endingPage "085701" @default.
- W4280642013 startingPage "085701" @default.
- W4280642013 abstract "Abstract We generalize the Heisenberg star consisting of a spin-1/2 central spin and a homogeneously coupled spin bath modeled by the XXX ring [Richter J and Voigt A 1994 J. Phys. A: Math. Gen. 27 1139-1149] to the case of arbitrary central-spin size S < N /2, where N is the number of bath spins. We describe how to block-diagonalize the model based on the Bethe ansatz solution of the XXX ring, with the dimension of each block Hamiltonian ≤ 2 S + 1. We obtain all the eigenenergies and explicit expressions of the sub-ground states in each l -subspace with l being the total angular momentum of the bath. Both the eigenenergies and the sub-ground states have distinct structures depending whether S ≤ l or l < S . The absolute ground-state energy and the corresponding l as functions of the intrabath coupling are numerically calculated for N = 16 and S = 1, 2, ⋯ ,7 and their behaviors are quantitatively explained in the weak and strong intrabath coupling limits. We then study the dynamics of the antiferromagnetic order within an XXX bath prepared in the Néel state. Effects of the initial state of the central spin, the value of S , and the system-bath coupling strength on the staggered magnetization dynamics are investigated. By including a Zeeman term for the central spin and the anisotropy in the intrabath coupling, we also study the polarization dynamics of the central spin for a bath prepared in the spin coherent state. Under the resonant condition and at the isotropic point of the bath, the polarization dynamics for S > 1/2 exhibit collapse-revival behaviors with fine structures. However, the collapse-revival phenomena are found to be fragile with respect to the anisotropy of the intrabath coupling." @default.
- W4280642013 created "2022-05-22" @default.
- W4280642013 creator A5011921417 @default.
- W4280642013 creator A5023371171 @default.
- W4280642013 date "2022-08-01" @default.
- W4280642013 modified "2023-10-17" @default.
- W4280642013 title "Ground-state and dynamical properties of a spin-S Heisenberg star" @default.
- W4280642013 cites W1972619021 @default.
- W4280642013 cites W1976671548 @default.
- W4280642013 cites W1999240349 @default.
- W4280642013 cites W2017154611 @default.
- W4280642013 cites W2032992206 @default.
- W4280642013 cites W2126100726 @default.
- W4280642013 cites W2146325398 @default.
- W4280642013 cites W27243674 @default.
- W4280642013 cites W2781846025 @default.
- W4280642013 cites W2895271897 @default.
- W4280642013 cites W2896618857 @default.
- W4280642013 cites W2994877072 @default.
- W4280642013 cites W3006020645 @default.
- W4280642013 cites W3029287585 @default.
- W4280642013 cites W3031561442 @default.
- W4280642013 cites W3081648057 @default.
- W4280642013 cites W3103869002 @default.
- W4280642013 cites W3111231459 @default.
- W4280642013 cites W3111326275 @default.
- W4280642013 cites W3152158897 @default.
- W4280642013 cites W3206699860 @default.
- W4280642013 cites W4284699570 @default.
- W4280642013 doi "https://doi.org/10.1088/1572-9494/ac7b17" @default.
- W4280642013 hasPublicationYear "2022" @default.
- W4280642013 type Work @default.
- W4280642013 citedByCount "0" @default.
- W4280642013 crossrefType "journal-article" @default.
- W4280642013 hasAuthorship W4280642013A5011921417 @default.
- W4280642013 hasAuthorship W4280642013A5023371171 @default.
- W4280642013 hasBestOaLocation W42806420132 @default.
- W4280642013 hasConcept C115260700 @default.
- W4280642013 hasConcept C121332964 @default.
- W4280642013 hasConcept C126255220 @default.
- W4280642013 hasConcept C130787639 @default.
- W4280642013 hasConcept C147120987 @default.
- W4280642013 hasConcept C155355069 @default.
- W4280642013 hasConcept C155675718 @default.
- W4280642013 hasConcept C16853830 @default.
- W4280642013 hasConcept C201665358 @default.
- W4280642013 hasConcept C21690051 @default.
- W4280642013 hasConcept C25227350 @default.
- W4280642013 hasConcept C26873012 @default.
- W4280642013 hasConcept C2778870898 @default.
- W4280642013 hasConcept C33923547 @default.
- W4280642013 hasConcept C42704618 @default.
- W4280642013 hasConcept C62520636 @default.
- W4280642013 hasConcept C69523127 @default.
- W4280642013 hasConcept C97355855 @default.
- W4280642013 hasConceptScore W4280642013C115260700 @default.
- W4280642013 hasConceptScore W4280642013C121332964 @default.
- W4280642013 hasConceptScore W4280642013C126255220 @default.
- W4280642013 hasConceptScore W4280642013C130787639 @default.
- W4280642013 hasConceptScore W4280642013C147120987 @default.
- W4280642013 hasConceptScore W4280642013C155355069 @default.
- W4280642013 hasConceptScore W4280642013C155675718 @default.
- W4280642013 hasConceptScore W4280642013C16853830 @default.
- W4280642013 hasConceptScore W4280642013C201665358 @default.
- W4280642013 hasConceptScore W4280642013C21690051 @default.
- W4280642013 hasConceptScore W4280642013C25227350 @default.
- W4280642013 hasConceptScore W4280642013C26873012 @default.
- W4280642013 hasConceptScore W4280642013C2778870898 @default.
- W4280642013 hasConceptScore W4280642013C33923547 @default.
- W4280642013 hasConceptScore W4280642013C42704618 @default.
- W4280642013 hasConceptScore W4280642013C62520636 @default.
- W4280642013 hasConceptScore W4280642013C69523127 @default.
- W4280642013 hasConceptScore W4280642013C97355855 @default.
- W4280642013 hasFunder F4320321001 @default.
- W4280642013 hasIssue "8" @default.
- W4280642013 hasLocation W42806420131 @default.
- W4280642013 hasLocation W42806420132 @default.
- W4280642013 hasOpenAccess W4280642013 @default.
- W4280642013 hasPrimaryLocation W42806420131 @default.
- W4280642013 hasRelatedWork W1990317660 @default.
- W4280642013 hasRelatedWork W1991408205 @default.
- W4280642013 hasRelatedWork W2171095647 @default.
- W4280642013 hasRelatedWork W2216038281 @default.
- W4280642013 hasRelatedWork W2333341431 @default.
- W4280642013 hasRelatedWork W2594044448 @default.
- W4280642013 hasRelatedWork W2949684274 @default.
- W4280642013 hasRelatedWork W2981502862 @default.
- W4280642013 hasRelatedWork W3099663038 @default.
- W4280642013 hasRelatedWork W4210391685 @default.
- W4280642013 hasVolume "74" @default.
- W4280642013 isParatext "false" @default.
- W4280642013 isRetracted "false" @default.
- W4280642013 workType "article" @default.