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Detect Axial Gauge Fields with a Calorimeter
by Matteo Baggioli, Maxim N. Chernodub, Karl Landsteiner, Maria A. H. Vozmediano
Submission summary
| Authors (as registered SciPost users): | matteo Baggioli · Karl Landsteiner · Maria Vozmediano |
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| Preprint Link: | https://arxiv.org/abs/2004.02473v2 (pdf) |
| Date accepted: | Nov. 24, 2020 |
| Date submitted: | Nov. 9, 2020, 1 p.m. |
| Submitted by: | matteo Baggioli |
| Submitted to: | SciPost Physics Core |
| Ontological classification | |
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| Academic field: | Physics |
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| Approach: | Theoretical |
Abstract
Torsional strain in Weyl semimetals excites a unidirectional chiral density wave propagating in the direction of the torsional vector. This gapless excitation, named the chiral sound wave, is generated by a particular realization of the axial anomaly via the triple-axial (AAA) anomalous diagram. We show that the presence of the torsion-generated chiral sound leads to a linear behavior of the specific heat of a Weyl semimetal and to an enhancement of the thermal conductivty at experimentally accessible temperatures. We also demonstrate that such an elastic twist lowers the temperature of the sample, thus generating a new, anomalous type of elasto-calorific effect. Measurements of these thermodynamical effects will provide experimental verification of the exotic triple-axial anomaly as well as the reality of the elastic pseudomagnetic fields in Weyl semimetals.
Published as SciPost Phys. Core 3, 013 (2020)