Controlling quantum breathers in Heisenberg ferromagnetic spin chains via an oblique magnetic field

Controlling quantum breathers in Heisenberg ferromagnetic spin chains via an oblique magnetic field

An analytical study on controlling quantum breathers in one‐dimensional ferromagnetic XXZ spin chains through an oblique magnetic field is presented in this paper. Based on the time‐dependent Hartree approximation and the semidiscrete multiple‐scale method, we prove the existence of quantum breather...

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Veröffentlicht in:Physica Status Solidi. B: Basic Solid State Physics 2014-05, Vol.251 (5), p.1063-1068
Hauptverfasser: Tang, Bing, Li, De-Jun, Tang, Yi
Format: Artikel
Sprache:eng
Schlagworte:
Breathers
Ferromagnetism
Hartree approximation
Magnetic fields
Mathematical analysis
quantum breathers
Solid state physics
spin chains
time-dependence
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Zusammenfassung:An analytical study on controlling quantum breathers in one‐dimensional ferromagnetic XXZ spin chains through an oblique magnetic field is presented in this paper. Based on the time‐dependent Hartree approximation and the semidiscrete multiple‐scale method, we prove the existence of quantum breathers, analyze conditions for their appearance, and discuss their properties. Our results show that the appearance and features of quantum breathers can be controlled by varying the value of the oblique angle θ.
ISSN:0370-1972
1521-3951
DOI:10.1002/pssb.201350353