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8 papers · 2 filters
Shortcuts to adiabatic state transfer in time-modulated two-level non-Hermitian systems
Qi-Cheng Wu, Jun-Long Zhao, Yan-Hui Zhou +4
Nontrivial spectral properties of non-Hermitian systems can give rise to intriguing effects that lack counterparts in Hermitian systems. For instance, when dynamically varying syst…
Efficient and controlled symmetric and asymmetric Bell-state transfers in a dissipative Jaynes-Cummings model
Qi-Cheng Wu, Yu-Liang Fang, Yan-Hui Zhou +4
Realizing efficient and controlled state transfer is necessary for implementing a wide range of classical and quantum information protocols. Recent studies have demonstrated that b…
Observing tight triple uncertainty relations in two-qubit systems
Yan Wang, Jie Zhou, Xing-Yan Fan +8
As the fundamental tool in quantum information science, the uncertainty principle is essential for manifesting nonclassical properties of quantum systems. Plenty of efforts on the…
Implementation and topological characterization of Weyl exceptional rings in quantum-mechanical systems
Hao-Long Zhang, Pei-Rong Han, Xue-Jia Yu +8
Non-Hermiticity can lead to the emergence of many intriguing phenomena that are absent in Hermitian systems, enabled by exceptional topological defects, among which Weyl exceptiona…
Quantum voting machine encoded with microwave photons
Yu Zhang, Chuiping Yang, Qiping Su +4
We propose a simple quantum voting machine using microwave photon qubit encoding, based on a setup comprising multiple microwave cavities and a coupled superconducting flux qutrit.…
Nonreciprocal quantum phase transition in cavity magnonics
Ye-jun Xu, Long-hua Zhai, Peng Fu +2
We investigate the nonreciprocal quantum phase transition in a cavity magnonic system driven by a parametric field, where an yttrium iron garnet (YIG) sphere is placed in a spinnin…