Puviani, M. (2018) Time-evolution and dynamics of Floquet edge states in irradiated graphene nanoribbons. Il nuovo cimento C, 41 (3). pp. 1-10. ISSN 1826-9885
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Abstract
We study the solution of the time-dependent Schr¨odinger equation for systems driven out of equilibrium by a time-periodic laser field, using the Floquet equation as a mathematical tool to efficiently obtain the desired time-dependent observables. We calculate the velocity and charge of occupied states in a laserirradiated zig-zag graphene nanoribbon (zGNR), focusing on the role and properties of topologically protected edge states: their robustness against defects and disorder is tested, as well as their behavior when a bias voltage is applied across a section of the ribbon. Our results reveal the importance of the time-dependent approach to correctly calculate observables of laser-driven materials according to the occupation of states, suggesting how the properties of protected edge-states can be exploited to create flying-qubit architectures.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 18 Nov 2020 08:51 |
| Last Modified: | 18 Nov 2020 08:51 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/20232 |
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