Fused integrable lattice models with quantum impurities and open boundaries
نویسندگان
چکیده
منابع مشابه
Fused integrable lattice models with quantum impurities and open boundaries
The alternating integrable spin chain and the RSOS(q1, q2; p) model in the presence of a quantum impurity are investigated. The boundary free energy due to the impurity is derived, the ratios of the corresponding g functions at low and high temperature are specified and their relevance to boundary flows in unitary minimal and generalized coset models is discussed. Finally, the alternating spin ...
متن کاملIntegrable vertex and loop models on the square lattice with open boundaries via reflection matrices
The procedure for obtaining integrable vertex models via reflection matrices on the square lattice with open boundaries is reviewed and explicitly carried out for a number of twoand three-state vertex models. These models include the six-vertex model, the 15-vertex A (1) 2 model and the 19-vertex models of Izergin-Korepin and ZamolodchikovFateev. In each case the eigenspectra is determined by a...
متن کاملIntegrable models with boundaries and defects
Over the past forty years there has been much effort devoted to understanding various aspects of one-dimensional (that is, one space one time, generally denoted by x and t, respectively) field theories both from the classical and quantum points of view and their applications in a variety of contexts. For the most part, attention has been paid to models in the bulk (that is, defined without rest...
متن کاملIntegrable impurities for an open fermion chain
Employing the graded versions of the Yang-Baxter equation and the reflection equations, we construct two kinds of integrable impurities for a small-polaron model with general open boundary conditions: (a) we shift the spectral parameter of the local Lax operator at arbitrary sites in the bulk, and (b) we embed the impurity fermion vertex at each boundary of the chain. The Hamiltonians with diff...
متن کاملIntegrable supersymmetric correlated electron chain with open boundaries
We construct an extended Hubbard model with open boundaries from a R-matrix based on the U q [Osp(2|2)] superalgebra. We study the reflection equation and find two classes of diagonal solutions. The corresponding one-dimensional open Hamiltonians are diagonalized by means of the Bethe ansatz approach.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2003
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2003.07.001