28-30 September 2017
Hotel Posada San Francisco, Tlaxcala
America/Mexico_City timezone
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WG Principios Fundamentales (Luis Urrutia)

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Location: Hotel Posada San Francisco, Tlaxcala
Date: 28 Sep 15:30 - 20:00

Timetable | Contribution List

Displaying 9 contributions out of 9
Quantum field theory in curved spacetimes (QFT in CS) has not only predicted exciting physical phenomena, such as black hole radiation, the Unruh effect and cosmological particle creation, but also lies at the intersection of many mathematical subjects, and can arguably be viewed as a branch of mathematics in its own right. In this talk, we shall give an inviting brief overview of QFT in CS. ... More
Presented by Dr. Benito A JUÁREZ AUBRY on 28/9/2017 at 22:00
Durante más de 50 años los cálculos perturbativos en Física de Altas Energías se han realizado “a la Feynman”. Debido a la enorme cantidad de datos que se obtienen en el LHC, es necesario contar con predicciones teóricas cada vez más precisas. En los últimos años se ha avanzado con técnicas poderosas para realizar cálculos de amplitudes de dispersión de manera eficiente, dando ... More
Presented by Mr. Bryan LARIOS on 29/9/2017 at 0:15
A niveles de energías distintivas de una escala de compactificación hipotética, las teorías de campo en dimensiones extras son descritas, en forma efectiva y desde una perspectiva cuadridimensional, mediante teorías de Kaluza-Klein. Las “simetrías escondidas”, por ejemplo presentes en el mecanismo de EnglertHiggs, son esenciales para definir, entender e interpretar a las teorías de ... More
Presented by Dr. Héctor NOVALES SÁNCHEZ on 28/9/2017 at 20:30
Presented by Dr. LUIS URRUTIA on 29/9/2017 at 0:45
Any acceptable version of a quantum theory of gravity must include, in the appropriate limit, the recovery of the classical spacetime. Moreover, the spacetime notion itself should be intrinsically tied to the behavior of the matter that probes it. We consider some of difficulties that would be confronted in attempting this enterprise. The problems we uncover seem to go beyond the technical le ... More
Presented by Prof. Chryssomalis CHRYSSOMALAKOS on 28/9/2017 at 22:45
We take as a starting point an expression for the quantum geometric tensor recently derived in the context of the gauge/gravity duality. We proceed to generalize this formalism in such a way that it is possible to compute the geometrical phases of quantum systems. Our scheme provides a conceptually complete description and introduces a different point of view with respect to earlier works. Us ... More
Presented by Prof. Jose david VERGARA on 28/9/2017 at 23:45
The notorious problems in the description of high spins are traced back to the inadequate (i) choice of the Lorentz algebra representation space used to embed the high spin of interest, (ii) identification of the latter. A new approach based on Lorentz and Poincaré invariant projectors is shown to help avoiding several of the inconsistencies in high spin description.
Presented by Dr. Mariana KIRCHBACH on 28/9/2017 at 21:00
We study the quantum cosmology of a quadratic f(𝑅) theory with a FRW metric, via one of its equivalent Horndeski type actions, where the dynamic of the scalar field is induced. The classical equations of motion and the Wheeler-DeWitt equation, in their exact versions, are solved numerically. There is a free parameter in the action from which two cases follow: inflation + exit and inflation ... More
Presented by Dr. Cupatitzio RAMÍREZ on 28/9/2017 at 23:15
Se da una introducción a la Relatividad General pseudo-compleja. Se presentan intentos anteriores para extender algebraicamente la teoría de Relatividad General y se da la razón por qué solo la extensión a coordenadas pseudocomplejas hace sentido. Se presentan las ecuaciones de Einstein modificadas y su interpretación. Posteriormente, se reduce la teoría a una versión simplificada y s ... More
Presented by Prof. Peter HESS on 28/9/2017 at 21:30
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