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arXiv · 2302.00823

Batalin-Tyutin quantization of dynamical boundary of AdS$_2$

Wontae Kim·Mungon Nam
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Abstract

In a two-dimensional AdS space, a dynamical boundary of AdS space was described by a one-dimensional quantum-mechanical Hamiltonian with a coupling between the bulk and boundary system. In this paper, we present a Lagrangian corresponding to the Hamiltonian through the Legendre transformation with a constraint. In Dirac's constraint analysis, we find two primary constraints without secondary constraints; however, they are fully second-class. In order to make the second-class constraint system into a first-class constraint system, we employ the Batalin-Tyutin Hamiltonian method, where the extended system reduces to the original one for the unitary gauge condition. In the spirit of the AdS/CFT correspondence, it raises a question whether a well-defined extended bulk theory corresponding to the extended boundary theory can exist or not.

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Wontae Kim, Mungon Nam. 2023-02-02. Batalin-Tyutin quantization of dynamical boundary of AdS$_2$. https://doi.org/10.1016/j.physletb.2023.137731

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