Front Cover: Robust Topological Feature against Non-Hermiticity in Jaynes–Cummings Model (Adv. Quantum Technol. 7/2024)

Abstract

Quantum coherence suffers from environmental influence but the topological feature may not. In article number 2400053, Zu-Jian Ying rigorously shows that the topological feature manifested by the fundamental Jaynes–Cummings model of light–matter interaction is robust against a general non-Hermiticity induced by dissipation and decay rates. The non-Hermiticity only tilts the spin winding plane, while the winding number is preserved. Several revealed properties may be useful for designing topological quantum devices.