4 papers · 1 filter
Superradiant phase transition in cavity magnonics via Floquet engineering
Si-Yan Lin, Fei Gao, Ye-Jun Xu +4
We propose a scheme to engineer the superradiant phase transition (SPT) in cavity magnonics by periodically modulating the frequency of the magnon mode. The studied system is compo…
Distribution of fidelity zeros in two-band topological models
Siyan Lin, Zhen-Yu Zheng, Shu Chen
We investigate the distribution of fidelity zeros in two-band topological models by extending the phase transition driving parameter into the complex plane. Within the biorthogonal…
Nonreciprocal superradiant quantum phase transition induced by the magnon Kerr effect
Guo-Qiang Zhang, Si-Yan Lin, Wei Feng +3
Recently, proposals for realizing a nonreciprocal superradiant quantum phase transition (SQPT) have been put forward, based on either nonreciprocal interactions between two spin en…
Loschmidt echo zeros in finite-size quantum systems with linear quench
Zhen-Yu Zheng, Xudong Liu, Siyan Lin +2
Dynamical quantum phase transitions reveal singularities in quench dynamics, characterized by the emergence of Loschmidt echo zeros at critical times, which usually exist only in t…