scholarly journals Flow-based sampling for fermionic lattice field theories

2021 ◽  
Vol 104 (11) ◽  
Author(s):  
Michael S. Albergo ◽  
Gurtej Kanwar ◽  
Sébastien Racanière ◽  
Danilo J. Rezende ◽  
Julian M. Urban ◽  
...  
Keyword(s):  
Field Theories ◽  
Lattice Field

Overrelaxation algorithms for lattice field theories

1988 ◽  
Vol 37 (2) ◽  
pp. 458-471 ◽  
Author(s):  
Stephen L. Adler
Keyword(s):  
Field Theories ◽  
Lattice Field

scholarly journals ON TWO-DIMENSIONAL QUASITOPOLOGICAL FIELD THEORIES

2009 ◽  
Vol 24 (32) ◽  
pp. 6105-6121 ◽  
Author(s):  
P. TEOTONIO-SOBRINHO ◽  
C. MOLINA ◽  
N. YOKOMIZO
Keyword(s):  
Hopf Algebras ◽  
Gauge Theories ◽  
Local Symmetry ◽  
Two Dimensions ◽  
Field Theories ◽  
Partition Functions ◽  
Wilson Loops ◽  
Two Dimensional ◽  
Lattice Field ◽  
Expected Values

We study a class of lattice field theories in two dimensions that includes gauge theories. We show that in these theories it is possible to implement a broader notion of local symmetry, based on semisimple Hopf algebras. A character expansion is developed for the quasitopological field theories, and partition functions are calculated with this tool. Expected values of generalized Wilson loops are defined and studied with the character expansion.

scholarly journals Lattice field theories with an energy current

2000 ◽  
Vol 565 (3) ◽  
pp. 487-505 ◽  
Author(s):  
John Cardy ◽  
Peter Suranyi
Keyword(s):  
Field Theories ◽  
Energy Current ◽  
Lattice Field

IR fixed points in lattice field theories

2014 ◽  
Vol 29 (25) ◽  
pp. 1445006 ◽  
Author(s):  
L. Del Debbio
Keyword(s):  
Fixed Points ◽  
Predictive Models ◽  
Gauge Theories ◽  
Quantitative Description ◽  
Electroweak Symmetry Breaking ◽  
Field Theories ◽  
Electroweak Symmetry ◽  
Lattice Field ◽  
Starting Point ◽  
Theoretical Foundations

The existence of strongly-interacting infrared (IR) fixed points in gauge theories can be studied using field theories defined on a lattice. Besides their academic interest, it has been argued that these theories could be used as a starting point to construct viable models of electroweak symmetry breaking (EWSB). A quantitative description of the large-distance dynamics is mandatory in order to develop predictive models for phenomenology. In these notes, we discuss the theoretical foundations of IR conformality, and present possible ways to study the problem using the lattice formulation of gauge theories. An overview of current results and methods is discussed.

Chaotic dynamics in classical lattice field theories

2008 ◽  
pp. 164-176 ◽  
Author(s):  
T. S. Biró ◽  
Á. Fülöp ◽  
C. Gong ◽  
S. Matinyan ◽  
B. Müller ◽  
...  
Keyword(s):  
Chaotic Dynamics ◽  
Field Theories ◽  
Classical Lattice ◽  
Lattice Field

scholarly journals New techniques and results for worldline simulations of lattice field theories

2018 ◽  
Vol 175 ◽  
pp. 07007 ◽  
Author(s):  
Mario Giuliani ◽  
Oliver Orasch ◽  
Christof Gattringer
Keyword(s):  
Low Temperature ◽  
Model System ◽  
Field Theories ◽  
Scattering Parameters ◽  
New Techniques ◽  
Finite Density ◽  
Lattice Field

We use the complex ø4 field at finite density as a model system for developing further techniques based on worldline formulations of lattice field theories. More specifically we: 1) Discuss new variants of the worm algorithm for updating the ø4 theory and related systems with site weights. 2) Explore the possibility of canonical simulations in the worldline formulation. 3) Study the connection of 2-particle condensation at low temperature to scattering parameters of the theory.

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