Critical chiral Heisenberg model with the functional renormalization group
@article{Knorr2018CriticalCH, title={Critical chiral Heisenberg model with the functional renormalization group}, author={B. Knorr}, journal={Physical Review B}, year={2018}, volume={97}, pages={075129} }
We discuss the Heisenberg model and its chiral extension in an extended truncation with the help of functional methods. Employing computer algebra to derive the beta functions, and pseudo-spectral methods to solve them, we are able to go significantly beyond earlier approximations, and provide new estimates on the critical quantities of both models. The fixed point of the Heisenberg model is mostly understood, and our results are in agreement with estimates from various other approaches… CONTINUE READING
24 Citations
Exact solutions and residual regulator dependence in functional renormalisation group flows
- Physics
- 2020
- 1
- PDF
Chiral Tricritical Point: A New Universality Class in Dirac Systems.
- Physics, Medicine
- Physical review letters
- 2018
- 6
- PDF
Quantum Monte Carlo Simulation of the Chiral Heisenberg Gross-Neveu-Yukawa Phase Transition with a Single Dirac Cone.
- Physics, Medicine
- Physical review letters
- 2019
- 19
- PDF
Dirac electrons in the square lattice Hubbard model with a $d$-wave pairing field: chiral Heisenberg universality class revisited
- Physics
- 2020
- 1
- PDF
Fractionalized Fermionic Quantum Criticality in Spin-Orbital Mott Insulators.
- Medicine, Physics
- Physical review letters
- 2020
- PDF
References
SHOWING 1-10 OF 108 REFERENCES
Nonperturbative renormalization group preserving full-momentum dependence: implementation and quantitative evaluation.
- Physics, Medicine
- Physical review. E, Statistical, nonlinear, and soft matter physics
- 2012
- 48
- PDF
Local potential approximation for the renormalization group flow of fermionic field theories
- Physics
- 2013
- 10
- PDF