English

Field Induced Oscillation of Two Majorana Modes in a Quantum Ring

Quantum Physics 2018-11-16 v1

Abstract

We calculate the topological boundary modes found for quantum wire for a quantum ring. For the symmetric ring we find analytical solutions for two quasi-particles identifiable as the Majorana states and for asymmetric ring, we have also find approximate solution. By turning on a small field at time zero, we find a field induced oscillation of the Majorana states that was initially localized. The range of validity of our solution, the relation between the period of oscillation and the coin parameter and field strength, and the encoding of a message of the on/off of the field using the Majorana states are discussed. Our results suggest ways to reduce decoherence for small systems, thereby providing a good candidate for quantum memory and computing as the Majorana qubit is topologically protected.

Keywords

Cite

@article{arxiv.1811.06388,
  title  = {Field Induced Oscillation of Two Majorana Modes in a Quantum Ring},
  author = {Yue Yu and Kwok Yip Szeto},
  journal= {arXiv preprint arXiv:1811.06388},
  year   = {2018}
}

Comments

arXiv admin note: text overlap with arXiv:1611.00634