"Yang-Baxter equation (YBE)"의 두 판 사이의 차이

2014년 4월 12일 (토) 01:09 판

most important roles in Integrable systems and solvable models
at the heart of quantum groups
exact solvability of many models is explained by commuting transfer matrices
in 1+1D S-matrix theory, the YBE is the condition for consistent factorization of the multiparticle S-matrix into two-particle factors
- see Exact S-matrices in ATFT
$R_{12}(u)R_{13}(u+v)R_{23}(v)=R_{23}(v)R_{13}(u+v)R_{12}(u)$
for vertex models, YBE becomes the star-triangle relation
see [Baxter1995] for a historical account

[Yang1967] interacting particles with potential
- Bethe ansatz gave rise to an equation
[Baxter1972] considered the problem of eight-vertex model and quantum XYZ model
- commutation of transfer matrices

in the space of couplings a submanifold exists, such as that the transfer matrices corresponding to any two points P and P' on it commute
characterized by a set of equations on the Boltzmann weights
- this set of equations is called the Yang-Baxter equation
solutions to Yang-Baxter equation can lead to a construction of integrable models

borrowed from transfer matrix in statistical mechanics
transfer matrix is builtup from matrices of Boltzmann weights
we need the transfer matrices coming from different set of Boltzman weights commute
partition function = trace of power of transfer matrices
so the problem of solving the model is reduced to the computation of this trace

we make a matrix from the Boltzmann weights
if we can find an R-matrix, then it implies the existence of a set of Boltzmann weights which give exactly solvable models
that is why we care about the quantum groups
spectral parameters
anistropy parameters
with an R-matrix satisfying the YBE, we obtain a representation of the Braid group, which then gives a link invariant in Knot theory
R-matrix

$$ [X_{12}(u_1-u_2),X_{13}(u_1-u_3)]+[X_{13}(u_1-u_3),X_{23}(u_2-u_3)]+[X_{12}(u_1-u_2),X_{23}(u_2-u_3)]=0 $$

Louis H. Kauffman, Knots and physics
Quantum Groups in Two-Dimensional Physics
Yang-Baxter Equations, Conformal Invariance And Integrability In Statistical Mechanics And Field Theory
knots+physics
two-dimensional+physics

Yang-Baxter equation in Physics, 안창림
http://math.ucr.edu/home/baez/braids/node4.html
Perk, Jacques H. H., and Helen Au-Yang. 2006. “Yang-Baxter Equations.” arXiv:math-ph/0606053 (June 20). http://arxiv.org/abs/math-ph/0606053.
Jimbo, Michio. 1989. “Introduction to the Yang-Baxter Equation.” International Journal of Modern Physics A. Particles and Fields. Gravitation. Cosmology. Nuclear Physics 4 (15): 3759–3777. doi:10.1142/S0217751X89001503. http://www.worldscientific.com/doi/abs/10.1142/S0217751X89001503
[Baxter1995] BaxterSolvable models in statistical mechanics, from Onsager onward, Journal of Statistical Physics, Volume 78, Numbers 1-2, 1995

Belavin, A. A., and V. G. Drinfel’d. 1982. “Solutions of the Classical Yang - Baxter Equation for Simple Lie Algebras.” Functional Analysis and Its Applications 16 (3) (July 1): 159–180. doi:10.1007/BF01081585.
Kulish, P. P., N. Yu Reshetikhin, and E. K. Sklyanin. 1981. “Yang-Baxter Equation and Representation Theory: I.” Letters in Mathematical Physics 5 (5) (September 1): 393–403. doi:10.1007/BF02285311. http://dx.doi.org/10.1007/BF02285311
[Baxter1972]Partition Function of the Eight-Vertex Lattice Model
- Baxter, Rodney , J. Publication: Annals of Physics, 70, Issue 1, p.193-228, 1972
[Yang1967]Some exact results for the many-body problem in one dimension with repulsive delta-function interaction
- C.N. Yang, Phys. Rev. Lett. 19 (1967), 1312-1315

@@ 75번째 줄: / 75번째 줄: @@
 ==related items==
-* [[quantum groups]]
 * [[Belavin-Drinfeld theory]]
+* [[Quantum groups]]
 * [[Yangian]]
+* [[Sklyanin algebra]]
 * [[Proofs and Confirmation]]