Academic Journal
Variational matrix product ansatz for nonuniform dynamics in the thermodynamic limit
| العنوان: | Variational matrix product ansatz for nonuniform dynamics in the thermodynamic limit |
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| المؤلفون: | Milsted, Ashley, Haegeman, Jutho, Osborne, Tobias J, Verstraete, Frank |
| المصدر: | PHYSICAL REVIEW B ; ISSN: 1098-0121 |
| سنة النشر: | 2013 |
| المجموعة: | Ghent University Academic Bibliography |
| مصطلحات موضوعية: | Physics and Astronomy, ANTIFERROMAGNETIC HEISENBERG CHAIN, STATES, RENORMALIZATION-GROUP, SPIN SYSTEMS, HALDANE-GAP, IMPURITY |
| الوصف: | We describe how to implement the time-dependent variational principle for matrix product states in the thermodynamic limit for nonuniform lattice systems. This is achieved by confining the nonuniformity to a (dynamically growable) finite region with fixed boundary conditions. The suppression of unphysical quasiparticle reflections from the boundary of the nonuniform region is also discussed. Using this algorithm we study the dynamics of localized excitations in infinite systems, which we illustrate in the case of the spin-1 anti-ferromagnetic Heisenberg model and the ϕ4 model. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://biblio.ugent.be/publication/5639927; http://hdl.handle.net/1854/LU-5639927; http://doi.org/10.1103/PhysRevB.88.155116; https://biblio.ugent.be/publication/5639927/file/5652438 |
| DOI: | 10.1103/PhysRevB.88.155116 |
| الاتاحة: | https://biblio.ugent.be/publication/5639927 http://hdl.handle.net/1854/LU-5639927 https://doi.org/10.1103/PhysRevB.88.155116 https://biblio.ugent.be/publication/5639927/file/5652438 |
| Rights: | No license (in copyright) ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.4D2C656E |
| قاعدة البيانات: | BASE |
| DOI: | 10.1103/PhysRevB.88.155116 |
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