Room P3.10, Mathematics Building

José Velhinho, Univ. Beira Interior and CENTRA
Representations of holonomy algebras and shadow states

It has been argued that the Ashtekar-Lewandowski representation of the Ashtekar-Isham holonomy algebra is fundamental, in the sense that any other representation can be obtained by a suitable limit procedure. We propose to clarify that statement, providing, in particular, a canonical way of mapping GNS states to a family of vectors of the Ashtekar-Lewandowski Hilbert space. The so-called family of shadow states thus obtained converges, as states of the algebra, to the original GNS state.

References

  1. M. Varadarajan, Phys. Rev D. 64 , 104003 (2001); gr-qc/0104051
  2. J.M. Velhinho, Commun. Math. Phys. 227, 541 (2002); math-ph/0107002
  3. A. Ashtekar and J. Lewandowski, Class. Quant. Grav. 18, L117 (2001); gr-qc/0107043
  4. T. Thiemann, gr-qc/0206037
  5. H. Sahlmann, gr-qc/0207112
  6. A. Ashtekar, J. Lewandowski and H. Sahlmann, gr-qc/0211012