TY  - GEN
AV  - public
Y1  - 2016///
TI  - Functional renormalization group approach
to dynamic critical phenomena
A1  - Stockemer, Jan Hendrik
UR  - https://archiv.ub.uni-heidelberg.de/volltextserver/20453/
N2  - In this thesis the real time functional renormalization group is applied to
investigate dynamic critical phenomena. In the first part, the established
method of the functional renormalization group as a tool for the calculation
of real time correlation functions is modified to properly incorporate the
thermal equilibrium initial conditions.
In the second part, this method is utilized to compute the dynamic critical
properties of a system of non-relativistic, bosonic particles. Our result
connect to a commonly applied effective description of dynamic critical phenomena.
The third part of the thesis extends these calculations to the relativistic
O(N) model. The convergence of parts of the truncation as well as the effects
of the chosen cutoff function are tested.
In the last part, the influence of conserved quantities on the dynamic critical
properties of a system is discussed. The dynamic universality class of Model
C as a simple, effective approximation of the effects of a conserved quantity
on the dynamic critical properties of a system is investigated.
ID  - heidok20453
ER  -