scholarly journals Effective potential for Polyakov loops from a center symmetric effective theory in three dimensions

2010 ◽  
Vol 82 (3) ◽  
Author(s):  
Dominik Smith
Keyword(s):  
Effective Potential ◽  
Three Dimensions ◽  
Effective Theory ◽  
Polyakov Loops

scholarly journals Quintessence in low-energy effective theory

2018 ◽  
Vol 168 ◽  
pp. 08004
Author(s):  
Tae Hoon Lee
Keyword(s):  
Scalar Field ◽  
Effective Potential ◽  
Cosmological Solution ◽  
Low Energy ◽  
Effective Theory ◽  
Late Time ◽  
Inverse Power Law ◽  
Virtual Interactions ◽  
The Universe ◽  
Gravitational Equations

Considering a theory of Brans-Dicke gravity with general couplings of a heavy field, we derive the low-energy effective theory action in the universe of temperature much lower than the heavy field mass. Gravitational equations and the Brans-Dicke scalar field equation including an effective potential of the scalar field are obtained, which is induced through virtual interactions of the heavy field in the late-time universe. We find a deSitter cosmological solution stemming from the inverse power law effective potential of the scalar field and discuss the possibility that the late time acceleration of our universe can be described by means of the solution.

scholarly journals Effective potential for SU(2) Polyakov loops and Wilson loop eigenvalues

2013 ◽  
Vol 88 (5) ◽  
Author(s):  
Dominik Smith ◽  
Adrian Dumitru ◽  
Robert Pisarski ◽  
Lorenz von Smekal
Keyword(s):  
Effective Potential ◽  
Wilson Loop ◽  
Polyakov Loops

scholarly journals On the superfield effective potential in three dimensions

2009 ◽  
Vol 678 (5) ◽  
pp. 500-503 ◽  
Author(s):  
A.F. Ferrari ◽  
M. Gomes ◽  
A.C. Lehum ◽  
J.R. Nascimento ◽  
A.Yu. Petrov ◽  
...  
Keyword(s):  
Effective Potential ◽  
Three Dimensions

scholarly journals CONFORMAL FACTOR DYNAMICS IN THE 1/N EXPANSION

1995 ◽  
Vol 10 (09) ◽  
pp. 733-739 ◽  
Author(s):  
E. ELIZALDE ◽  
S. D. ODINTSOV
Keyword(s):  
Renormalization Group ◽  
Quantum Gravity ◽  
Cosmological Constant ◽  
Effective Potential ◽  
Bound States ◽  
Conformal Factor ◽  
Effective Theory ◽  
Cosmological Constant Problem ◽  
New Model

We suggest to consider conformal factor dynamics as applying to composite bound states, in the framework of the 1/N expansion. In this way, a new model of effective theory for quantum gravity is obtained. The renormalization group (RG) analysis of this model provides a framework to solve the cosmological constant problem, since the value of this constant turns out to be suppressed, as a result of the RG contributions. The effective potential for the conformal factor is also found.

scholarly journals A physical theory of larval Drosophila behaviour

2020 ◽  
Author(s):  
Jane Loveless ◽  
Alastair Garner ◽  
Abdul Raouf Issa ◽  
Ruairi J. V. Roberts ◽  
Barbara Webb ◽  
...  
Keyword(s):  
Free Field ◽  
Fruit Fly ◽  
Animal Behaviour ◽  
Three Dimensions ◽  
Effective Theory ◽  
Larval Behaviour ◽  
Symmetry Properties ◽  
Mode Space ◽  
Low Dimensionality ◽  
Physical Laws

All animal behaviour must ultimately be governed by physical laws. As a basis for understanding the physics of behaviour in fruit fly larvae, we here develop an effective theory for the animals' motion in three dimensions. We first define a set of fields which quantify stretching, bending, and twisting along the larva's anteroposterior axis, then perform a search in the space of possible theories that could govern these fields' long-wavelength physics. Guided by symmetry considerations and stability requirements, we arrive at a unique, analytically tractable free-field theory with a minimum of free parameters. Surprisingly, we are able to explain many features of larval behaviour by applying equilibrium statistical mechanics to this model. Our theory closely predicts the animals' postural modes (eigenmaggots) as well as distributions and trajectories in the postural mode space, across several behaviours (crawling, rolling, self-righting, unbiased exploration). We explain the low-dimensionality of postural dynamics via Boltzmann suppression of high frequency modes, and also propose and experimentally test novel predictions on the relationships between different behaviours. We show that crawling and rolling are dominated by similar symmetry properties, leading to identical dynamics/statistics in mode space, while rolling and unbiased exploration have a common dominant timescale. Together, our results demonstrate that relatively simple effective physics can be used to explain and predict animal behaviour.

scholarly journals Effective potential in the boundary effective theory formalism

2011 ◽  
Vol 83 (12) ◽  
Author(s):  
A. Bessa ◽  
C. A. A. de Carvalho ◽  
E. S. Fraga ◽  
F. Gelis
Keyword(s):  
Effective Potential ◽  
Effective Theory

scholarly journals Analytic results for the effective theory of thermal Polyakov loops

1986 ◽  
Vol 172 (3-4) ◽  
pp. 369-376 ◽  
Author(s):  
P.H. Damgaard ◽  
A. Patkós
Keyword(s):  
Effective Theory ◽  
Polyakov Loops
Sign in / Sign up

Export Citation Format

Share Document