| TAZ-TFM-2024-077 |
Problemas de las Teorías Cuánticas de Campos en Espacios-Tiempos Curvos
Cano Jones, Alejandro
Asorey Carballeira, Manuel (dir.)
Universidad de Zaragoza,
CIEN,
2024
Física Teórica department, Física Teórica area
Máster Universitario en Física del Universo: Cosmología, Astrofísica, Partículas y Astropartículas
Abstract: Quantum Field Theory is the fundamental theoretical framework of the Stan-
dard Model of elementary particles. This theory is formulated in a Minkowski
space-time. However, the actual space-time metric is never of that type. On
Earth, even at short distances, the metric is affected by both the force of the
Earth’s gravity and the solar force, but especially by the acceleration of the
Earth’s motion. At large distances the cosmological data lead one to think
that, on average, the metric is of the Friedmann-Lemaitre-Roberson-Walker
type.
The analysis of the quantization of fields in the presence of gravitational fields
involves a number of theoretical issues that we intend to explore in this work;
meaning how QFT can be adapted to introduce a gravitational background.
The key aspects treated throughout this work include the mathematical back-
ground that will be used; scalar fields in expanding universes; thermal aspects
of non inertial observers; and the renormalization problems regarding gravi-
tational dynamics.
dard Model of elementary particles. This theory is formulated in a Minkowski
space-time. However, the actual space-time metric is never of that type. On
Earth, even at short distances, the metric is affected by both the force of the
Earth’s gravity and the solar force, but especially by the acceleration of the
Earth’s motion. At large distances the cosmological data lead one to think
that, on average, the metric is of the Friedmann-Lemaitre-Roberson-Walker
type.
The analysis of the quantization of fields in the presence of gravitational fields
involves a number of theoretical issues that we intend to explore in this work;
meaning how QFT can be adapted to introduce a gravitational background.
The key aspects treated throughout this work include the mathematical back-
ground that will be used; scalar fields in expanding universes; thermal aspects
of non inertial observers; and the renormalization problems regarding gravi-
tational dynamics.
Tipo de Trabajo Académico: Trabajo Fin de Master
Notas: Resumen disponible también en castellano.
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