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Higher dimensional unitary braid matrices: Construction, associated structures and entanglements

Feb, 2007
25 pages
Published in:
  • J.Math.Phys. 48 (2007) 053508
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Abstract:
We construct (2n)2×(2n)2(2n)^2\times (2n)^2 unitary braid matrices R^\hat{R} for n≥2n\geq 2 generalizing the class known for n=1n=1. A set of (2n)×(2n)(2n)\times (2n) matrices (I,J,K,L)(I,J,K,L) are defined. R^\hat{R} is expressed in terms of their tensor products (such as K⊗JK\otimes J), leading to a canonical formulation for all nn. Complex projectors P±P_{\pm} provide a basis for our real, unitary R^\hat{R}. Baxterization is obtained. Diagonalizations and block-diagonalizations are presented. The loss of braid property when R^\hat{R} (n>1)(n>1) is block-diagonalized in terms of R^\hat{R} (n=1)(n=1) is pointed out and explained. For odd dimension (2n+1)2×(2n+1)2(2n+1)^2\times (2n+1)^2, a previously constructed braid matrix is complexified to obtain unitarity. R^LL\hat{R}\mathrm{LL}- and R^TT\hat{R}\mathrm{TT}-algebras, chain Hamiltonians, potentials for factorizable SS-matrices, complex non-commutative spaces are all studied briefly in the context of our unitary braid matrices. Turaev construction of link invariants is formulated for our case. We conclude with comments concerning entanglements.
Note:
  • 26 pages, 1 figure, Addendum and new references are added. To appear in Journal of Mathematical Physics
  • 02.10.Yn
  • 02.10.Ud
  • S-matrix theory
  • tensors