scholarly journals Temperature dependence of quarks and gluon vacuum condensate in the Dyson-Schwinger Equations at finite temperature

2015 ◽  
Vol 39 (3) ◽  
pp. 033101 ◽  
Author(s):  
Li-Juan Zhou ◽  
Bo Zheng ◽  
Hong-Wei Zhong ◽  
Wei-Xing Ma
Keyword(s):  
Temperature Dependence ◽  
Finite Temperature ◽  
Vacuum Condensate

A Finite-Temperature Continuum Theory Based on Interatomic Potentials

2005 ◽  
Vol 127 (4) ◽  
pp. 408-416 ◽  
Author(s):  
H. Jiang ◽  
Y. Huang ◽  
K. C. Hwang
Keyword(s):  
Temperature Dependence ◽  
Finite Temperature ◽  
Interatomic Potential ◽  
Coefficient Of Thermal Expansion ◽  
Harmonic Approximation ◽  
Continuum Theory ◽  
Single Wall Carbon Nanotubes ◽  
Interatomic Potentials ◽  
Atomistic Models ◽  
Continuum Theories

There are significant efforts to develop continuum theories based on atomistic models. These atomistic-based continuum theories are limited to zero temperature (T=0K). We have developed a finite-temperature continuum theory based on interatomic potentials. The effect of finite temperature is accounted for via the local harmonic approximation, which relates the entropy to the vibration frequencies of the system, and the latter are determined from the interatomic potential. The focus of this theory is to establish the continuum constitutive model in terms of the interatomic potential and temperature. We have studied the temperature dependence of specific heat and coefficient of thermal expansion of graphene and diamond, and have found good agreements with the experimental data without any parameter fitting. We have also studied the temperature dependence of Young’s modulus and bifurcation strain of single-wall carbon nanotubes.

scholarly journals Temperature Dependence of the Raman Frequency of an Internal Mode for SiO2-Moganite Close to the α-β Transition

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Mustafa Cem Lider ◽  
Hamit Yurtseven
Keyword(s):  
Experimental Data ◽  
Temperature Dependence ◽  
Temperature Interval ◽  
Finite Temperature ◽  
Vibrational Mode ◽  
Raman Frequency ◽  
Internal Mode ◽  
Heating And Cooling

The temperature dependence of the 501 cm−1 frequency of the vibrational mode is analyzed for SiO2-moganite. The experimental data for the heating and cooling cycles of moganite from the literature is used for our analysis. The coexistence of α-β moganite is obtained over a finite temperature interval, and the α-β moganite transition at around 570 K is studied, as observed experimentally.

scholarly journals TRANSPORT IN QUANTUM WIRES WITH IMPURITIES AT FINITE TEMPERATURE

2003 ◽  
Vol 17 (28) ◽  
pp. 5483-5487
Author(s):  
T. KLEIMANN ◽  
M. SASSETTI ◽  
B. KRAMER
Keyword(s):  
Quantum Dot ◽  
Temperature Dependence ◽  
Power Law ◽  
Finite Temperature ◽  
Coulomb Blockade ◽  
Quantum Wires ◽  
Luttinger Liquid ◽  
Electron Interaction ◽  
One Dimensional ◽  
Liquid Model

The temperature dependence of Coulomb blockade peaks of a one dimensional quantum dot is calculated. The Coulomb interaction is treated microscopically using the Luttinger liquid model. The electron interaction is assumed to be non-homogeneous with a maximum strength near the quantum dot. The conductance peaks show non-analytic power law behaviour induced by the interaction. It is shown that there is a crossover in the power law which is related to the inhomogeneity of the interaction.

scholarly journals THERMAL RENORMALONS IN SCALAR FIELD THEORY

2000 ◽  
Vol 15 (18) ◽  
pp. 1181-1190 ◽  
Author(s):  
M. LOEWE ◽  
C. VALENZUELA
Keyword(s):  
Field Theory ◽  
Scalar Field ◽  
Temperature Dependence ◽  
Finite Temperature ◽  
Temperature Dependent ◽  
Scalar Theory ◽  
Scalar Field Theory

In the framework of the scalar theory gϕ4, we explore the occurrence of thermal renormalons, i.e. temperature-dependent singularities in the Borel plane. The discussion of a particular renormalon type diagram at finite temperature, using Thermofield Dynamics, allows us to establish that these singularities actually get a temperature dependence. This dependence appears in the residues of the poles, the positions of the poles remain unchanged with temperature.

Dynamic susceptibility of Fermi liquids at finite temperature

1976 ◽  
Vol 54 (6) ◽  
pp. 648-654 ◽  
Author(s):  
F. C. Khanna ◽  
H. R. Glyde
Keyword(s):  
Temperature Dependence ◽  
Imaginary Part ◽  
Finite Temperature ◽  
Fermi Liquid ◽  
Fermi Liquids ◽  
Dynamic Susceptibility ◽  
Closed Expression ◽  
Numerical Examples ◽  
The Real

A closed expression for the dynamic susceptibility of a noninteracting Fermi liquid at finite temperature is presented. The expression for the imaginary part is particularly simple while the real part appears as a sum. The calculation of the sum is discussed and numerical examples displaying the temperature dependence of the susceptibility are given.

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