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6 papers · 2 filters
Dimensional Deception from Noncommutative Tori: An alternative to Horava-Lifschitz
Fedele Lizzi, Aleksandr Pinzul
We study the dimensional aspect of the geometry of quantum spaces. Introducing a physically motivated notion of the scaling dimension, we study in detail the model based on a fuzzy…
Non-relativistic Spinning Particle in a Newton-Cartan Background
Andrea Barducci, Roberto Casalbuoni, Joaquim Gomis
We construct the action of a non-relativistic spinning particle moving in a general torsionless Newton-Cartan background. The particle does not follow the geodesic equations, inste…
Boundary Conformal Anomalies on Hyperbolic Spaces and Euclidean Balls
Diego Rodriguez-Gomez, Jorge G. Russo
We compute conformal anomalies for conformal field theories with free conformal scalars and massless spin fields in hyperbolic space and in the ball $\mathbb{B…
One-loop Parke-Taylor factors for quadratic propagators from massless scattering equations
Humberto Gomez, Cristhiam Lopez-Arcos, Pedro Talavera
In this paper we reconsider the Cachazo-He-Yuan construction (CHY) of the so called scattering amplitudes at one-loop, in order to obtain quadratic propagators. In theories with co…
Geometric polarization of plasmas and Love numbers of AdS black branes
Roberto Emparan, Alejandro Fernandez-Pique, Raimon Luna
We use AdS/CFT holography to study how a strongly-coupled plasma polarizes when the geometry where it resides is not flat. We compute the linear-response polarization coefficients,…
Is Patience a Virtue? Cosmic Censorship of Infrared Effects in de Sitter
Ricardo Z. Ferreira, McCullen Sandora, Martin S. Sloth
While the accumulation of long wavelength modes during inflation wreaks havoc on the large scale structure of spacetime, the question of even observability of their presence by any…