177 citations · 249 across the 5 of their papers we have counts for
5 papers
Low-Energy Effective Theory at a Quantum Critical Point of the Two-Dimensional Hubbard Model: Mean-Field Analysis
Kambis Veschgini, Manfred Salmhofer
We complement previous functional renormalization group (fRG) studies of the two-dimensional Hubbard model by mean-field calculations. The focus falls on Van Hove filling and the t…
Essentially No Barriers in Neural Network Energy Landscape
Felix Draxler, Kambis Veschgini, Manfred Salmhofer +1
Training neural networks involves finding minima of a high-dimensional non-convex loss function. Knowledge of the structure of this energy landscape is sparse. Relaxing from linear…
Schwinger-Dyson Renormalization Group
Kambis Veschgini, Manfred Salmhofer
We use the Schwinger-Dyson equations as a starting point to derive renormalization flow equations. We show that Katanin's scheme arises as a simple truncation of these equations. W…
Trouble Finding the Optimal AdS/QCD
K. Veschgini, E. Megias, H. J. Pirner
In the bottom-up approach to AdS/QCD based on a five-dimensional gravity dilaton action the exponential of the dilaton field is usually identified as the strong or 't Hooft couplin…
QCD-Thermodynamics using 5-dim Gravity
E. Megias, H. J. Pirner, K. Veschgini
We calculate the critical temperature and free energy of the gluon plasma using the dilaton potential arXiv:0911.0627[hep-ph] in the gravity theory of AdS/QCD. The finite temperatu…