304 citations · 426 across the 6 of their papers we have counts for
10 papers
Hunting for the non-Hermitian exceptional points with fidelity susceptibility
Yu-Chin Tzeng, Chia-Yi Ju, Guang-Yin Chen +1
The fidelity susceptibility has been used to detect quantum phase transitions in the Hermitian quantum many-body systems over a decade, where the fidelity susceptibility density ap…
Vector exceptional points with strong superchiral fields
Tong Wu, Weixuan Zhang, Huizhen Zhang +12
Exceptional points(EPs), branch points of complex energy surfaces at which eigenvalues and eigenvectors coalesce, are ubiquitous in non-Hermitian systems. Many novel properties and…
Non-Hermitian Hamiltonians and no-go theorems in quantum information
Chia-Yi Ju, Adam Miranowicz, Guang-Yin Chen +1
Recently, apparent nonphysical implications of non-Hermitian quantum mechanics (NHQM) have been discussed in the literature. In particular, the apparent violation of the no-signali…
Collectively induced exceptional points of quantum emitters coupled to nanoparticle surface plasmons
Po-Chen Kuo, Neill Lambert, Adam Miranowicz +4
Exceptional points, resulting from non-Hermitian degeneracies, have the potential to enhance the capabilities of quantum sensing. Thus, finding exceptional points in different quan…
Probing higher-order transitions through scattering of microwave photons in the ultrastrong-coupling regime of circuit QED
Guan-Ting Chen, Po-Chen Kuo, Huan-Yu Ku +2
Higher-order transitions can occur in the ultrastrong-coupling regime of circuit QED through virtual processes governed by the counter-rotating interactions. We propose a feasible…
Thermodynamic description of non-Markovian information flux of nonequilibrium open quantum systems
Hong-Bin Chen, Guang-Yin Chen, Yueh-Nan Chen
One of the fundamental issues in the field of open quantum systems is the classification and quantification of non-Markovianity. In the contest of quantity-based measures of non-Ma…