EnglishWe present a numerical study of a multichannel electronicMach-Zehnder interferometer, based onmagnetically driven noninteracting edge states. The electron path is defined by a full-scale potential landscape on the twodimensional electron gas at filling factor 2, assuming initially only the first Landau level as filled.We tailor the two beamsplitters with 50% interchannelmixing and measure Aharonov-Bohm oscillations in the transmission probability of the second channel.We perform time-dependent simulations by solving the electron Schrödinger equation through a parallel implementation of the split-step Fourier method, and we describe the charge-carrier wave function as a Gaussian wave packet of edge states.We finally develop a simplified theoretical model to explain the features observed in the transmission probability, and we propose possible strategies to optimize gate performances.
Dynamics and Hall-edge-state mixing of localized electrons in a two-channel Mach-Zehnder interferometer / Bellentani, Laura; Beggi, Andrea; Bordone, Paolo; Bertoni, Andrea. - In: PHYSICAL REVIEW. B. - ISSN 2469-9950. - 97(2018), pp. 205419-1-205419-11. [10.1103/PhysRevB.97.205419]
| Data di pubblicazione: | 2018 | |
| Data di prima pubblicazione: | 15-mag-2018 | |
| Titolo: | Dynamics and Hall-edge-state mixing of localized electrons in a two-channel Mach-Zehnder interferometer | |
| Autore/i: | Bellentani, Laura; Beggi, Andrea; Bordone, Paolo; Bertoni, Andrea | |
| Autore/i UNIMORE: | ||
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevB.97.205419 | |
| Rivista: | ||
| Volume: | 97 | |
| Pagina iniziale: | 205419-1 | |
| Pagina finale: | 205419-11 | |
| Codice identificativo ISI: | WOS:000433005600003 | |
| Codice identificativo Scopus: | 2-s2.0-85047164476 | |
| Citazione: | Dynamics and Hall-edge-state mixing of localized electrons in a two-channel Mach-Zehnder interferometer / Bellentani, Laura; Beggi, Andrea; Bordone, Paolo; Bertoni, Andrea. - In: PHYSICAL REVIEW. B. - ISSN 2469-9950. - 97(2018), pp. 205419-1-205419-11. [10.1103/PhysRevB.97.205419] | |
| Tipologia | Articolo su rivista |
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| PhysRevB.97.205419.pdf | Versione dell'editore (versione pubblicata) | Open Access Visualizza/Apri |
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