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ON TWO-DIMENSIONAL QUASITOPOLOGICAL FIELD THEORIES
(WORLD SCIENTIFIC PUBL CO PTE LTDSingapura, 2009)
We study a class of lattice field theories in two dimensions that includes gauge theories. We show that in these theories it is possible to implement a broader notion of local symmetry, based on semisimple Hopf algebras. ...
Three-dimensional bondi-metzner-sachs invariant two-dimensional field theories as the flat limit of liouville theory
(AMERICAN PHYSICAL SOCIETY, 2013)
Critical Theory of Two-Dimensional Mott Transition: Integrability and Hilbert Space Mapping
(Scientific Research Publishing, 2015-04)
We reconsider the Mott transition in the context of a two-dimensional fermion model with density-density coupling. We exhibit a Hilbert space mapping between the original model and the Double Lattice Chern-Simons theory ...
Two-dimensional hydrogen-like atom in a uniform magnetic field: Large-order perturbation theory
(Springer Verlag Berlín, 2018-12)
The well-known hypervirial perturbation method (HPM), based on hypervirial relations and the Hellmann-Feynman theorem, is suitable for the calculation of perturbation corrections of large order for the non-relativistic, ...
The S-matrix bootstrap II: two dimensional amplitudes
(2017-11-01)
We consider constraints on the S-matrix of any gapped, Lorentz invariant quantum field theory in 1 + 1 dimensions due to crossing symmetry and unitarity. In this way we establish rigorous bounds on the cubic couplings of ...
Entanglement entropy and the large N expansion of two-dimensional Yang-Mills theory
(Springer, 2020)
Two-dimensional Yang-Mills theory is a useful model of an exactly solvable gauge theory with a string theory dual at large N. We calculate entanglement entropy in the 1/N expansion by mapping the theory to a system of N ...
Examples of reflection positive field theories
(World Scientific, 2018-02)
The requirement of reflection positivity (RP) for Euclidean field theories is considered. This is done for the cases of a scalar field, a higher derivative scalar field theory and the scalar field theory defined on a ...