On Nieh-Yan transport

[EN] We study nondissipative transport induced by the Nieh-Yan anomaly. After computing the torsional terms in the equilibrium partition function using transgression, we find the constitutive relations for the covariant axial-vector, heat, stress, and spin currents. A number of new transport effects...

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Detalles Bibliográficos
Autores: Valle Basagoiti, Manuel Ángel, Vázquez Mozo, Miguel
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/56634
Acceso en línea:http://hdl.handle.net/10810/56634
Access Level:acceso abierto
Palabra clave:anomalies in field and string theories
thermal field theory
Descripción
Sumario:[EN] We study nondissipative transport induced by the Nieh-Yan anomaly. After computing the torsional terms in the equilibrium partition function using transgression, we find the constitutive relations for the covariant axial-vector, heat, stress, and spin currents. A number of new transport effects are found, driven by background torsion and the spin chemical potential. Torsional constitutive relations in two-dimensional systems are also analyzed.