Topological protection of Majorana polaritons in a cavity

Autor:	Bacciconi, Zeno, Andolina, Gian Marcello, Mora, Christophe
Rok vydání:	2023
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Quantum Gases Condensed Matter - Statistical Mechanics Condensed Matter - Strongly Correlated Electrons Quantum Physics
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.109.165434
Popis:	Cavity embedding is an emerging paradigm for the control of quantum matter, offering avenues to manipulate electronic states and potentially drive topological phase transitions. In this work, we address the stability of a one-dimensional topological superconducting phase to the vacuum quantum fluctuations brought by a global cavity mode. By employing a quasi-adiabatic analytical approach completed by density matrix renormalization group calculations, we show that the Majorana end modes evolve into composite polaritonic modes while maintaining the topological order intact and robust to disorder. These Majorana polaritons keep their non-abelian exchange properties and protect a twofold exponentially degenerate ground state for an open chain. Comment: 7 pages, 4 figures + supplementary material. Comments are welcome
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2309.07278 Zobrazit plný text záznamu View this record from Arxiv