4 papers
Mixed States Uniquely Determined by Marginals and Additivity
Xinyu Qiu, Lin Chen, Genwei Li +1
Identifying whether a mixed quantum state is uniquely determined among all states (UDA) by its local marginals is a basic problem in quantum information theory. We establish necess…
Magnon squeezing near a quantum critical point in a cavity-magnon-qubit system
Gang Liu, Gen Li, Rong-Can Yang +2
Preparing magnon nonclassical states is a central topic in the study of quantum magnonics. Here we propose to generate magnon squeezed states in a hybrid cavity-magnon-qubit system…
Magnon cat states in a cavity-magnon-qubit system via two-magnon driving and dissipation
Gang Liu, Gen Li, Huatang Tan +1
We propose an efficient method for dissipative generation of magnonic cat states in a cavity-magnon-qubit hybrid system by exploiting a two-magnon driving and dissipation mechanism…
Enhancing Quantum Discord in V-shaped Plasmonic Waveguides by Quantum Feedback
Hua-Wei Zhao, Gen Li, Guo-Feng Zhang
We investigate the impact of a symmetric quantum feedback control on the quantum discord of the X state in V-shaped plasmonic waveguides. Under this feedback, the quantum discord o…