On the physical Hilbert space of loop quantum cosmology

Nov, 2004
30 pages
Published in:
  • Phys.Rev.D 71 (2005) 044025
e-Print:

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Abstract: (arXiv)
In this paper we present a model of Riemannian loop quantum cosmology with a self-adjoint quantum scalar constraint. The physical Hilbert space is constructed using refined algebraic quantization. When matter is included in the form of a cosmological constant, the model is exactly solvable and we show explicitly that the physical Hilbert space is separable consisting of a single physical state. We extend the model to the Lorentzian sector and discuss important implications for standard loop quantum cosmology.
  • 98.80.Qc
  • 98.80.Jk
  • 04.60.Pp
  • 04.60.Kz
  • quantum cosmology
  • loop space
  • Hilbert space
  • cosmological constant
  • quantization: algebra
  • constraint