17 citations · 53 across the 6 of their papers we have counts for
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Quantum-classical transition in the Caldeira-Leggett model
J. Kovacs, B. Fazekas, S. Nagy +1
The quantum-classical transition in the Caldeira-Leggett model is investigated in the framework of the functional renormalization group method. It is shown that a divergent quadrat…
Asymptotic safety in the sine-Gordon model
J. Kovacs, S. Nagy, K. Sailer
In the framework of the functional renormalization group method it is shown that the phase structure of the 2-dimensional sine-Gordon model possesses a nontrivial UV fixed point wh…
Optimized regulator for the quantized anharmonic oscillator
J. Kovacs, S. Nagy, K. Sailer
The energy gap between the first excited state and the ground state is calculated for the quantized anharmonic oscillator in the framework of the functional renormalization group m…
Critical exponents in quantum Einstein gravity
S. Nagy, B. Fazekas, L. Juhasz +1
The quantum Einstein gravity is treated by the functional renormalization group method using the Einstein-Hilbert action. The ultraviolet non-Gaussian fixed point is determined and…
Phase Structure and Compactness
I. Nandori, S. Nagy, K. Sailer +1
In order to study the influence of compactness on low-energy properties, we compare the phase structures of the compact and non-compact two-dimensional multi-frequency sine-Gordon…