Work

Electron conductance and many-body marker of a cavity-embedded topological one-dimensional chain

Year: 2024

Type: article

Abstract: The authors investigate here, using an exact diagonalization approach, how electron transport in the paradigmatic Su-Schrieffer-Heeger (SSH) model, a cornerstone of 1D topological systems, is influenced by cavity quantum fields. In addition to analyzing how the cavity modifies the linear electron conductance, they uncover an exact many-body topological marker that remains valid for any degree of cavity coupling and light-matter entanglement, providing a new framework for studying topological phases in cavity-coupled systems.

Source: Physical review. B./Physical review. B

DOI: 10.1103/physrevb.110.195416

Authors: Danh-Phuong Nguyen, Geva Arwas, Cristiano Ciuti

Institutions: Université Paris Cité, Laboratoire Matériaux et Phénomènes Quantiques

Language: English

Topic: Topological Materials and Phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Agence Nationale de la Recherche, Council for Higher Education

Award: Van der Waals Heterostructures controlled by electromagnetic cavity resonators