6 papers
Ladder Operators and Fermionic Tensor Fields on Maximally Symmetric Spaces
Facundo L. Cruz, Matias N. Sempé, Guillermo A. Silva
We construct first-order ladder operators for spin- Dirac fields and transverse, -traceless spin- Rarita--Schwinger fields on maximally symmetric space…
Logarithmic corrections to the entropy of near-extremal black holes in New Massive Gravity
Lucas Acito, Mariano Chernicoff, Julio Oliva +2
We study the one-loop correction to the entropy of near-extremal black holes in three-dimensional massive gravity at the special point where the theory exhibits a unique maximally…
From BTZ Perturbations to Schwarzian Modes: A Geometrical and Perturbative Analysis
Lucas Acito, Matías N. Sempé
We provide a detailed derivation of the Schwarzian modes in the full geometry of the Bañados-Teitelboim-Zanelli (BTZ) black hole at finite temperature, establishing the precise con…
Spinning fields on S and dS, UIRs and Ladder operators
Vasileios A. Letsios, Matías N. Sempé, Guillermo A. Silva
We construct, for spin tensor fields on S, a set of ladder operators that connect the distinct UIRs of SO. This is achieved by relying on the conformal Killing v…
Notes on Gauge Fields and Discrete Series representations in de Sitter spacetimes
Alan Rios Fukelman, Matías Sempé, Guillermo A. Silva
In this note we discuss features of the simplest spinning Discrete Series Unitary Irreducible Representations (UIR) of SO(1,4). These representations are known to be realised in th…
Fermionic Matrix Models and Bosonization
Matias N. Sempé, Guillermo A. Silva
We explore different limits of exactly solvable vector and matrix fermionic quantum mechanical models with quartic interactions at finite temperature. The models preserve a $U(1)\t…