4 papers
QFT on flat, compact, orientable manifolds
Sebestyen Nagy, Daniel Nogradi
Motivated by the recent observation that rotating space-times at finite temperature can be described by particular flat, compact, orientable manifolds, which are different from $\m…
Classical limit of a scalar quantum field theory
S. Nagy, J. Polonyi
It is well known that a minimal distance emerges in quantum field theories owing to the need to regularize the UV divergences. The macroscopical limit at large minimal distance, we…
QFT on rotating boxes at finite temperature
Sebestyen Nagy, Daniel Nogradi
We formulate thermal quantum field theory on a finite spatial periodic volume incorporating finite rotations. Traditional compactifications at finite temperature without rotations…
First order phase transition with functional renormalization group method
S. Nagy, J. Polonyi
The renormalization group method, more specifically the Wegner-Houghton equation, is used to find first order phase transitions in a simple scalar field theory with a polynomial po…