Gravitational anomaly and transport phenomena

Autor:	Francisco Peña Benítez, Eugenio Megias Fernandez, Eugenio Megias, Karl Landsteiner
Jazyk:	angličtina
Rok vydání:	2011
Předmět:	Physics Physics::Fluid Dynamics Thermal quantum field theory Condensed matter physics Kubo formula Quantum electrodynamics General Physics and Astronomy Anomaly (physics) Transport phenomena Gauge anomaly Gravitational anomaly Magnetic field Vortex
Zdroj:	Dipòsit Digital de Documents de la UAB Universitat Autònoma de Barcelona Recercat. Dipósit de la Recerca de Catalunya instname Recercat: Dipósit de la Recerca de Catalunya Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Popis:	Quantum anomalies give rise to new transport phenomena. In particular, a magnetic field can induce an anomalous current via the chiral magnetic effect and a vortex in the relativistic fluid can also induce a current via the chiral vortical effect. The related transport coefficients can be calculated via Kubo formulas. We evaluate the Kubo formula for the anomalous vortical conductivity at weak coupling and show that it receives contributions proportional to the gravitational anomaly coefficient. The gravitational anomaly gives rise to an anomalous vortical effect even for an uncharged fluid.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96db65f372e140b50ae2ae4735c25c45 https://ddd.uab.cat/record/114183 Zobrazit plný text záznamu