| Issue |
EPL
Volume 138, Number 3, May 2022
|
|
|---|---|---|
| Article Number | 36004 | |
| Number of page(s) | 5 | |
| Section | Condensed matter and materials physics | |
| DOI | https://doi.org/10.1209/0295-5075/ac39eb | |
| Published online | 24 May 2022 | |
Configuration entropy for N-Dirac fermions with dissipation and external field: An effective-mass phase transition
Departamento de Física, FACI, Universidad de Tarapacá - Casilla 7-D, Arica, Chile
(a) cflores@uta.cl (corresponding author)
Received: 27 July 2021
Accepted: 15 November 2021
Dirac fermions in solid state are defined through a homogeneous dispersion relation of degree one. Consequently, the group velocity, having a superior bound, becomes invariant under spatial scaling. This fact allows considering the dynamics of a family or set of Dirac fermions at different spatial dimensions and subjected to an external field and dissipation. From the degeneration of the stationary states, the non-Hermitian dynamics allows defining the configuration entropy. With the applied external field being the control parameter, an inflection point becomes associated with entropy. Consequently, an effective-mass phase transition is conjectured including the usual Dirac fermions in a graphene sheet. The critical field and the critical angle are analytically calculated.
© 2022 The author(s)
Published by the EPLA under the terms of the Creative Commons Attribution 4.0 International License (CC-BY). Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.