scholarly journals Self-force on extreme mass ratio inspirals via curved spacetime effective field theory

2009 ◽  
Vol 79 (6) ◽  
Author(s):  
Chad R. Galley ◽  
B. L. Hu
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Effective Field ◽  
Mass Ratio ◽  
Curved Spacetime ◽  
Self Force

scholarly journals Comments on initial conditions for the Abraham–Lorentz(–Dirac) equation

2015 ◽  
Vol 30 (02) ◽  
pp. 1550011 ◽  
Author(s):  
Ofek Birnholtz
Keyword(s):  
Field Theory ◽  
Electromagnetic Field ◽  
Dirac Equation ◽  
Electric Charge ◽  
Effective Field Theory ◽  
Initial Conditions ◽  
Effective Field ◽  
Dirac Equations ◽  
Incoming Radiation ◽  
Self Force

An accelerating electric charge coupled to its own electromagnetic field both emits radiation and experiences the radiation's reaction as a (self-)force. Considering the system from an Effective Field Theory perspective, and using the physical initial conditions of no incoming radiation can help resolve many of the problems associated with the often considered "notorious" Abraham–Lorentz/Abraham–Lorentz–Dirac equations.

scholarly journals Self-force driven motion in curved spacetime

2014 ◽  
Vol 11 (08) ◽  
pp. 1450072 ◽  
Author(s):  
Alessandro D. A. M. Spallicci ◽  
Patxi Ritter ◽  
Sofiane Aoudia
Keyword(s):  
Body Problem ◽  
Effective Field ◽  
The Self ◽  
Covariant Form ◽  
Mass Ratio ◽  
Curved Spacetime ◽  
Perturbative Correction ◽  
First Order ◽  
Two Body Problem ◽  
Self Force

We adopt the Dirac–Detweiler–Whiting radiative and regular effective field in curved spacetime. Thereby, we derive straightforwardly the first order perturbative correction to the geodesic of the background in a covariant form, for the extreme mass ratio two-body problem. The correction contains the self-force contribution and a background metric-dependent term.

scholarly journals Two interacting scalars system in curved spacetime — vacuum stability from the curved spacetime Effective Field Theory (cEFT) perspective

2020 ◽  
Vol 2020 (11) ◽  
Author(s):  
Zygmunt Lalak ◽  
Anna Nakonieczna ◽  
Łukasz Nakonieczny
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Field Potential ◽  
Scalar Fields ◽  
Effective Field ◽  
Kinetic Term ◽  
Curved Spacetime ◽  
Minimal Coupling ◽  
Vacuum Stability ◽  
Higher Dimensional

Abstract In this article we investigated the influence of the gravity mediated higher dimensional operators on the issue of vacuum stability in a model containing two interacting scalar fields. As a framework we used the curved spacetime Effective Field Theory (cEFT) applied to the aforementioned system in which one of the scalars is heavy. After integrating out the heavy scalar we used the standard Euclidean approach to the obtained cEFT. Apart from analyzing the influence of standard operators like the non-minimal coupling to gravity and the dimension six contribution to the scalar field potential, we also investigated the rarely discussed dimension six contribution to the kinetic term and the new gravity mediated contribution to the scalar quartic self-interaction.

Effective Field Theory in Particle Physics and Cosmology

2020 ◽  
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Particle Physics ◽  
Large Scale ◽  
Effective Field ◽  
Effective Theory ◽  
Soft Collinear Effective Theory ◽  
Multiple Length Scales ◽  
Cosmological Observations ◽  
Standard Models

Effective field theory (EFT) is a general method for describing quantum systems with multiple-length scales in a tractable fashion. It allows us to perform precise calculations in established models (such as the standard models of particle physics and cosmology), as well as to concisely parametrize possible effects from physics beyond the standard models. EFTs have become key tools in the theoretical analysis of particle physics experiments and cosmological observations, despite being absent from many textbooks. This volume aims to provide a comprehensive introduction to many of the EFTs in use today, and covers topics that include large-scale structure, WIMPs, dark matter, heavy quark effective theory, flavour physics, soft-collinear effective theory, and more.

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