Non-abelian symmetries in the simulation of strongly-correlated quantum many-body systems based on tensor networks

• Applicant: Dr. Andreas Weichselbaum, Ph.D.
• Subject Area: Theoretical Condensed Matter Physics
• Term: from 2015 to 2017
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 269015890

• Final Report Year: 2020

Final Report Abstract

No abstract available

Publications

• Dynamical meanfield theory plus numerical renormalization group study of spin-orbital separation in a three-band Hund metal. Physical Review Letters, Vol. 115. 2015, Issue 13, 136401.
  K. M. Stadler, Z. P. Yin, J. von Delft, G. Kotliar, A.Weichselbaum
  (See online at https://doi.org/10.1103/PhysRevLett.115.136401)
• Emergent spin-1 trimerized valence bond crystal in the spin-1/2 Heisenberg model on the star lattice. Physical Review B, Vol. 97. 2018, Issue 7, 075146.
  S.-J. Ran, W. Li, S.-S. Gong, A. Weichselbaum, J. von Delft, G. Su
  (See online at https://doi.org/10.1103/PhysRevB.97.075146)
• Exponential thermal tensor network approach for quantum lattice models. Physical Review X, Vol. 8. 2018, Issue 3, 031082.
  B.-B. Chen, L. Chen, Z. Chen, W. Li, A. Weichselbaum
  (See online at https://doi.org/10.1103/PhysRevX.8.031082)
• Filling-driven mott transition in SU(N) Hubbard models. Physical Review B, Vol. 97, 2018, Issue 16, 165143.
  S.-S. B. Lee, J. von Delft, A. Weichselbaum
  (See online at https://doi.org/10.1103/PhysRevB.97.165143)
• Unified phase diagram of antiferromagnetic SU(N) spin ladders. Physical Review B, Vol. 98. 2018, Issue 8, 085104.
  A.Weichselbaum, S. Capponi, P. Lecheminant, A. M. Tsvelik, A. M. Läuchli
  (See online at https://doi.org/10.1103/PhysRevB.98.085104)
• Hundness versus mottness in a three-band hubbard-hund model: on the origin of strong correlations in hund metals. Annals of Physics, Vol. 405. 2019, pp. 365-409.
  K. Stadler, G. Kotliar, A. Weichselbaum, J. von Delft
  (See online at https://doi.org/10.1016/j.aop.2018.10.017)
• Two-temperature scales in the triangular-lattice Heisenberg antiferromagnet. Physical Review B, Vol. 99. 2019, Issue 14, 140404(R).
  L. Chen, D.-W. Qu, H. Li, B.-B. Chen, S.-S. Gong, J. von Delft, A. Weichselbaum, W. Li
  (See online at https://doi.org/10.1103/PhysRevB.99.140404)