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Paper detail

Deformation quantization of cosmological models

The Weyl-Wigner-Groenewold-Moyal formalism of deformation quantization is applied to cosmological models in the minisuperspace. The quantization procedure is performed explicitly for quantum cosmology in a flat minisuperspace. The de Sitter cosmological model is worked out in detail and the computation of the Wigner functions for the Hartle-Hawking, Vilenkin and Linde wave functions are done numerically. The Wigner function is analytically calculated for the Kantowski-Sachs model in (non)commutative quantum cosmology and for string cosmology with dilaton exponential potential. Finally, baby universes solutions are described in this context and the Wigner function is obtained.

preprint2011arXivOpen access
Ruben CorderoHugo Garcia-CompeanFrancisco J. Turrubiates
math-phmath.MPgr-qchep-th
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Ruben CorderoHugo Garcia-CompeanFrancisco J. Turrubiates

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