Skip to Main content Skip to Navigation
Theses

Honeycomb lattices of superconducting microwave resonators : Observation of topological Semenoff edge states

Abstract : This thesis describes the realization and study of honeycomb lattices of superconducting resonators. This work is a first step towards the simulation of condensed matter systems with superconducting circuits. Our lattices are micro-fabricated and typically contains a few hundred sites. In order to observe the eigen-modes that appear between 4 and 8 GHz, we have developed a mode imaging technique based on the local dissipation introduced by a laser spot that we can move across the lattice. We have been able to measure the band structure and to characterize the edge states of our lattices. In particular, we observe localized states that appear at the interface between two Semenoff insulators with opposite masses. These states, called Semenoff states, have a topological origin. Our observations are in good agreement with ab initio electromagnetic simulations.
Complete list of metadatas

Cited literature [90 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-02102764
Contributor : Abes Star :  Contact
Submitted on : Wednesday, April 17, 2019 - 4:03:11 PM
Last modification on : Wednesday, September 16, 2020 - 4:38:25 PM

File

76947_MORVAN_2019_archivage.pd...
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-02102764, version 1

Collections

Citation

Alexis Morvan. Honeycomb lattices of superconducting microwave resonators : Observation of topological Semenoff edge states. Condensed Matter [cond-mat]. Université Paris Saclay (COmUE), 2019. English. ⟨NNT : 2019SACLS037⟩. ⟨tel-02102764⟩

Share

Metrics

Record views

191

Files downloads

113