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Bethe states for the two-site Bose-Hubbard model: A binomial approach

Title
Bethe states for the two-site Bose-Hubbard model: A binomial approach
Authors
Santos, GilbertoAhn, ChangrimFoerster, AngelaRoditi, Itzhak
Ewha Authors
안창림
SCOPUS Author ID
안창림scopus
Issue Date
2015
Journal Title
PHYSICS LETTERS B
ISSN
0370-2693JCR Link1873-2445JCR Link
Citation
vol. 746, pp. 186 - 189
Keywords
Bethe ansatzBethe vectorsForm factorsBose-Einstein condensation
Publisher
ELSEVIER SCIENCE BV
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We calculate explicitly the Bethe vectors states by the algebraic Bethe ansatz method with the gl(2)-invariant R-matrix for the two-site Bose-Hubbard model. Using a binomial expansion of the n-th power of a sum of two operators we get and solve a recursion equation. We calculate the scalar product and the norm of the Bethe vectors states. The form factors of the imbalance current operator are also computed. (C) 2015 The Authors. Published by Elsevier B.V.
DOI
10.1016/j.physletb.2015.05.003
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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