Statut | Confirmé |
Série | SEM-EXCEP |
Domaines | cond-mat.stat-mech |
Date | Mardi 30 Novembre 2021 |
Heure | 11:30 |
Institut | LPENS |
Salle | L367 |
Nom de l'orateur | Auerbach |
Prenom de l'orateur | Assa |
Addresse email de l'orateur | |
Institution de l'orateur | Technion |
Titre | New advances in simplifying Hall and Thermal Hall Kubo formulas |
Résumé | Kubo formulas in hyperspace are convenient starting point for deriving computable expressions for transport coefficients of general lattice Hamiltonians. These include: (i) Continued fractions expansion of dynamical conductivities, (ii) Static (thermodynamic) formulas for DC Hall and thermal Hall coefficients, and (iii) On-shell formulas for Hall and thermal Hall conductivities. The latter are expressed as commutators of degeneracy-projected polarizations. The new formulas expose general properties of Hall and thermal Hall current carrying states in bulk-gapped and gapless metallic phases. Refs: 1. Noga Bashan, Assa Auerbach, arXiv:2108.11372 2. A. Auerbach, Phys. Rev. B 99, 115115 (2019). 3. Netanel H. Lindner and Assa Auerbach, Phys. Rev. B81, 054512-14, (2010). |
Numéro de preprint arXiv | |
Commentaires | |
Fichiers attachés |
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