281 citations · 1.8k across the 46 of their papers we have counts for
9 papers · 1 filter
Generation of spin squeezing via a fully quantum degenerate parametric amplifier
Yang Liu, Jie Song, Wei Qin +2
Spin squeezing is one of the most attractive methods for realizing high-precision metrology. In this paper, we propose a protocol for generating spin squeezing in an atomic ensembl…
Sudden change of the photon output field marks phase transitions in the quantum Rabi model
Ye-Hong Chen, Yuan Qiu, Adam Miranowicz +6
The experimental observation of quantum phase transitions predicted by the quantum Rabi model in quantum critical systems is usually challenging due to the lack of signature experi…
Optomechanical Schrödinger cat states in a cavity Bose-Einstein condensate
Baijun Li, Wei Qin, Ya-Feng Jiao +4
Schrödinger cat states, consisting of superpositions of macroscopically distinct states, provide key resources for a large number of emerging quantum technologies in quantum inform…
Spin and Orbital Metallic Magnetism in Rhombohedral Trilayer Graphene
Chunli Huang, Tobias Wolf, Wei Qin +3
We provide a complete theoretical interpretation of the metallic broken spin/valley symmetry states recently discovered in ABC trilayer graphene (ABC) perturbed by a large transver…
Ferroelectric tuning of superconductivity and band topology in a two-dimensional heterobilayer
Jianyong Chen, Ping Cui, Zhenyu Zhang
Realization of tunable superconductivity with concomitant nontrivial band topology is conceptually intriguing and highly desirable for superconducting devices and topological quant…
Functional Renormalization Group Study of Superconductivity in Rhombohedral Trilayer Graphene
Wei Qin, Chunli Huang, Tobias Wolf +3
We employ a functional renormalization group approach to ascertain the pairing mechanism and symmetry of the superconducting phase observed in rhombohedral trilayer graphene. Super…
Beating the 3 dB Limit for Intracavity Squeezing and Its Application to Nondemolition Qubit Readout
Wei Qin, Adam Miranowicz, Franco Nori
While the squeezing of a propagating field can, in principle, be made arbitrarily strong, the cavity-field squeezing is subject to the well-known 3 dB limit, and thus has limited a…
Enhancing dissipative cat-state generation via nonequilibrium pump fields
Zheng-Yang Zhou, Clemens Gneiting, Wei Qin +2
Cat states, which were initially proposed to manifest macroscopic superpositions, play an outstanding role in fundamental aspects of quantum dynamics. In addition, they have potent…
Confined monolayer Ag as a large gap 2D semiconductor and its momentum resolved excited states
Woojoo Lee, Yuanxi Wang, Wei Qin +11
2D materials have intriguing quantum phenomena that are distinctively different from their bulk counterparts. Recently, epitaxially synthesized wafer-scale 2D metals, composed of e…