Non-minimal couplings in two-dimensional gravity: a quantum investigation

  title={Non-minimal couplings in two-dimensional gravity: a quantum investigation},
  author={Luca Griguolo and Domenico Seminara},
  journal={Nuclear Physics},
Abstract We investigate the quantum effects of the non-minimal matter-gravity couplings derived by Cangemi and Jackiw in the realm of a specific fermionic theory, namely the abelian Thirring model on a Riemann surface of genus zero and one. The structure and the strength of the new interactions are seen to be highly constrained, when the topology of the underlying manifold is taken into account. As a matter of fact, by requiring to have a well-defined action, we are led both to quantization… Expand
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