Ab initio modeling framework for Majorana transport in 2D materials: towards topological quantum computing


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{
  "metadata": {
    "description": "We present an ab initio modeling framework to simulate Majorana transport in 2D semiconducting materials, paving the way for topological qubits based on 2D nanoribbons. By combining density-functional-theory and quantum transport calculations, we show that the signature of Majorana bound states (MBSs) can be found in 2D material systems as zero-energy modes with peaks in the local density-of-states. The influence of spin-orbit coupling and external magnetic fields on Majorana transport is studied for two relevant 2D materials, WSe2 and PbI2. To illustrate the capabilities of the proposed ab initio platform, a device structure capable of hosting MBSs is created from a PbI2 nanoribbon and carefully investigated. These results are compared to InSb nanowires and used to provide design guidelines for 2D topological qubits.", 
    "version": 1, 
    "owner": 226, 
    "title": "Ab initio modeling framework for Majorana transport in 2D materials: towards topological quantum computing", 
    "_oai": {
      "id": "oai:materialscloud.org:1098"
    }, 
    "contributors": [
      {
        "givennames": "Youseung", 
        "familyname": "Lee", 
        "affiliations": [
          "Integrated Systems Laboratory, ETH Z\u00fcrich, 8092 Z\u00fcrich, Switzerland"
        ], 
        "email": "youslee@iis.ee.ethz.ch"
      }, 
      {
        "givennames": "Tarun", 
        "familyname": "Agarwal", 
        "affiliations": [
          "Integrated Systems Laboratory, ETH Z\u00fcrich, 8092 Z\u00fcrich, Switzerland"
        ]
      }, 
      {
        "givennames": "Mathieu", 
        "familyname": "Luisier", 
        "affiliations": [
          "Integrated Systems Laboratory, ETH Z\u00fcrich, 8092 Z\u00fcrich, Switzerland"
        ]
      }
    ], 
    "references": [
      {
        "type": "Journal reference", 
        "url": "https://ieeexplore.ieee.org/abstract/document/9371923", 
        "doi": "10.1109/IEDM13553.2020.9371923", 
        "citation": "Y. Lee, T. Agarwal, M. Luisier, Proc. of IEDM 2020, 30.3.1-30.3.4 (2020)"
      }
    ], 
    "is_last": true, 
    "id": "1098", 
    "edited_by": 100, 
    "keywords": [
      "MARVEL/DD3", 
      "SNSF", 
      "ab initio", 
      "Majorana", 
      "Quantum Transport"
    ], 
    "license": "Creative Commons Attribution 4.0 International", 
    "license_addendum": null, 
    "_files": [
      {
        "description": "Input files for VASP and Wannier90 with and without spin-orbit coupling to reproduce Hamiltonians for PbI2 and WSe2, and OMEN transport characteristics", 
        "size": 16064357, 
        "checksum": "md5:2b3dd1aed6ba0c79db0b9ca34ed3af41", 
        "key": "IEDM2020.zip"
      }, 
      {
        "description": "README file", 
        "size": 765, 
        "checksum": "md5:8e303a7a06be1c195625530e90b23d24", 
        "key": "README.txt"
      }
    ], 
    "conceptrecid": "1097", 
    "doi": "10.24435/materialscloud:8c-r3", 
    "mcid": "2021.185", 
    "publication_date": "Oct 31, 2021, 16:20:54", 
    "status": "published"
  }, 
  "revision": 5, 
  "created": "2021-10-31T00:53:51.803543+00:00", 
  "updated": "2021-10-31T15:20:54.811909+00:00", 
  "id": "1098"
}