scholarly journals Heavy Quarkonium at zero and finite temperature: an effective field theory perspective

2010 ◽  
Author(s):  
Nora Brambilla ◽  
Juan M. Nieves ◽  
Eulogio Oset ◽  
Manuel J. Vicente-Vacas
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Finite Temperature ◽  
Effective Field ◽  
Heavy Quarkonium

FINITE TEMPERATURE EFFECTIVE FIELD THEORY FOR PROTONEUTRON STARS

2003 ◽  
Author(s):  
G. F. MARRANGHELLO ◽  
C.A.Z. VASCONCELLOS ◽  
M. DILLIG ◽  
J. A. DE FREITAS PACHECO ◽  
H. T. COELHO
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Finite Temperature ◽  
Effective Field ◽  
Protoneutron Stars

scholarly journals Finite temperature effective field theory and two-band superfluidity in Fermi gases

2015 ◽  
Vol 88 (5) ◽  
Author(s):  
Serghei N. Klimin ◽  
Jacques Tempere ◽  
Giovanni Lombardi ◽  
Jozef T. Devreese
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Finite Temperature ◽  
Effective Field ◽  
Fermi Gases

scholarly journals Effective field theory for quasicrystals and phasons dynamics

2020 ◽  
Vol 9 (5) ◽  
Author(s):  
matteo Baggioli ◽  
Michael Landry
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Finite Temperature ◽  
Diffusion Constant ◽  
Effective Field ◽  
Point Of View ◽  
Universal Relation ◽  
Lattice Structures ◽  
Symmetry Point ◽  
And Diffusion

We build an effective field theory (EFT) for quasicrystals -- aperiodic incommensurate lattice structures -- at finite temperature, entirely based on symmetry arguments and a well-define action principle. By means of Schwinger-Keldysh techniques, we derive the full dissipative dynamics of the system and we recover the experimentally observed diffusion-to-propagation crossover of the phason mode. From a symmetry point of view, the diffusive nature of the phason at long wavelengths is due to the fact that the internal translations, or phason shifts, are symmetries of the system with no associated Noether currents. The latter feature is compatible with the EFT description only because of the presence of dissipation (finite temperature) and the lack of periodic order. Finally, we comment on the similarities with certain homogeneous holographic models and we formally derive the universal relation between the pinning frequency of the phonons and the damping and diffusion constant of the phason.

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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