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arXiv · 1212.2436

An $xp$ model on $AdS_2$ spacetime

Javier Molina-Vilaplana·Germán Sierra
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Abstract

In this paper we formulate the $xp$ model on the AdS$_2$ spacetime. We find that the spectrum of the Hamiltonian has positive and negative eigenvalues, whose absolute values are given by a harmonic oscillator spectrum, which in turn coincides with that of a massive Dirac fermion in AdS$_2$. We extend this result to generic $xp$ models which are shown to be equivalent to a massive Dirac fermion on spacetimes whose metric depend of the $xp$ Hamiltonian. Finally, we construct the generators of the isometry group SO(2,1) of the AdS$_2$ spacetime, and discuss the relation with conformal quantum mechanics.

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BibTeXRIS

Javier Molina-Vilaplana, Germán Sierra. 2013-09-04. An $xp$ model on $AdS_2$ spacetime. https://doi.org/10.1016/j.nuclphysb.2013.09.009

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