Front Cover: Scaling Relations and Topological Quadruple Points in Light‐Matter Interactions with Anisotropy and Nonlinear Stark Coupling (Adv. Quantum Technol. 1/2023)

Abstract

Critical universality and topological universality are both fascinating but essentially different classes of universalities, can a system hit them both with one stone? In article number 2200068, Zu-Jian Ying demonstrates that both universalities can manifest in a single-qubit system of light-matter interaction generally with anisotropy and nonlinear Stark coupling (NSC). Different levels of scaling relations are extracted, and topological quadruple points are found. The highly tunable anisotropy and NSC provide applicable approaches to manipulate quantum phase transitions and topological transitions.

Topics & Concepts