443 citations · 1.6k across the 24 of their papers we have counts for
24 papers
Magnon squeezing in the quantum regime
Yuan-Chao Weng, Da Xu, Zhen Chen +8
Squeezed states, crucial for quantum metrology and emerging quantum technologies, have been demonstrated in various platforms, but quantum squeezing of magnons in macroscopic spin…
Unidirectional perfect absorption induced by chiral coupling in spin-momentum locked waveguide magnonics
Jie Qian, Qi Hong, Zi-Yuan Wang +5
Chiral coupling opens new avenues for controlling and exploiting light-matter interactions. We demonstrate that chiral coupling can be utilized to achieve unidirectional perfect ab…
Microwave-to-optics conversion using magnetostatic modes and a tunable optical cavity
Wei-Jiang Wu, Yi-Pu Wang, Jie Li +2
Quantum computing, quantum communication and quantum networks rely on hybrid quantum systems operating in different frequency ranges. For instance, the superconducting qubits work…
Synthetically enhanced sensitivity using higher-order exceptional point and coherent perfect absorption
Yao-Dong Hu, Yi-Pu Wang, Rui-Chang Shen +3
Sensors play a crucial role in advanced apparatuses and it is persistently pursued to improve their sensitivities. Recently, the singularity of a non-Hermitian system, known as the…
Strong coupling between a single-photon and a two-photon Fock state
Shuai-Peng Wang, Alberto Mercurio, Alessandro Ridolfo +9
The realization of strong nonlinear coupling between single photons has been a long-standing goal in quantum optics and quantum information science, promising wide impact applicati…
Scattering description of edge states in Aharonov-Bohm triangle chains
Zhi-Hai Liu, O. Entin-Wohlman, A. Aharony +2
Scattering theory has been suggested as a convenient method to identify topological phases of matter, in particular of disordered systems for which the Bloch band-theory approach i…
Polaromechanics: cavity-magnon polaritons strongly coupled to phonons
Rui-Chang Shen, Jie Li, Yi-Ming Sun +5
Building hybrid quantum systems is a crucial step for realizing multifunctional quantum technologies, quantum information processing, and hybrid quantum networks. A functional hybr…
Realization of the unidirectional amplification in a cavity magnonic system
Zi-Yuan Wang, Jie Qian, Yi-Pu Wang +2
We experimentally demonstrate the nonreciprocal microwave amplification using a cavity magnonic system, consisting of a passive cavity (i.e., the split-ring resonator), an active f…
Macroscopic Bell state between a millimeter-sized spin system and a superconducting qubit
Da Xu, Xu-Ke Gu, Yuan-Chao Weng +4
Entanglement is a fundamental property in quantum mechanics that systems share inseparable quantum correlation regardless of their mutual distances. Owing to the fundamental signif…
Giant spin ensembles in waveguide magnonics
Zi-Qi Wang, Yi-Pu Wang, Jiguang Yao +6
The dipole approximation is usually employed to describe light-matter interactions under ordinary conditions. With the development of artificial atomic systems, `giant atom' physic…
Quantum control of a single magnon in a macroscopic spin system
Da Xu, Xu-Ke Gu, He-Kang Li +6
Non-classical quantum states are the pivotal features of a quantum system that differs from its classical counterpart. However, the generation and coherent control of quantum state…
Probing the symmetry breaking of a light--matter system by an ancillary qubit
Shuai-Peng Wang, Alessandro Ridolfo, Tiefu Li +4
Hybrid quantum systems in the ultrastrong, and even more in the deep-strong, coupling regimes can exhibit exotic physical phenomena and promise new applications in quantum technolo…
Coherent control of quantum topological states of light in Fock-state lattices
Jinfeng Deng, Hang Dong, Chuanyu Zhang +11
Topological photonics provides a novel platform to explore topological physics beyond traditional electronic materials and stimulates promising applications in topologically protec…
Steady entangled-state generation via cross-Kerr effect in a ferrimagnetic crystal
Zhi-Bo Yang, Wei-Jiang Wu, Jie Li +2
For solid-state spin systems, the collective spin motion in a single crystal embodies multiple magnetostatic modes. Recently, it was found that the cross-Kerr interaction between t…
Observation of magnon cross-Kerr effect in cavity magnonics
Wei-Jiang Wu, Da Xu, Jie Qian +3
When there is a certain amount of field inhomogeneity, the biased ferrimagnetic crystal will exhibit the higher-order magnetostatic (HMS) mode in addition to the uniform-precession…
Strong Long-Range Spin-Spin Coupling via a Kerr Magnon Interface
Wei Xiong, Miao Tian, Guo-Qiang Zhang +1
Strong long-range coupling between distant spins is crucial for spin-based quantum information processing. However, achieving such a strong spin-spin coupling remains challenging.…
Optical sensing of magnons via the magnetoelastic displacement
Zhi-Yuan Fan, Rui-Chang Shen, Yi-Pu Wang +2
We show how to measure a steady-state magnon population in a magnetostatic mode of a ferromagnet or ferrimagnet, such as yttrium iron garnet. We adopt an optomechanical approach an…
Entanglement Emerges from Dissipation-Structured Quantum Self-Organization
Zhi-Bo Yang, Yi-Pu Wang, Jie Li +2
Entanglement is a holistic property of multipartite quantum systems, which is accompanied by the establishment of nonclassical correlations between subsystems. Most entanglement me…
Multipartite entanglement of the topologically ordered state in a perturbed toric code
Yu-Ran Zhang, Yu Zeng, Tao Liu +3
We demonstrate that multipartite entanglement, witnessed by the quantum Fisher information (QFI), can characterize topological quantum phase transitions in the spin- t…
Quantum network with magnonic and mechanical nodes
Jie Li, Yi-Pu Wang, Wei-Jiang Wu +2
A quantum network consisting of magnonic and mechanical nodes connected by light is proposed. Recent years have witnessed a significant development in cavity magnonics based on col…
Exceptional Point and Cross-Relaxation Effect in a Hybrid Quantum System
Guo-Qiang Zhang, Zhen Chen, Da Xu +7
Exceptional points (EPs) are exotic degeneracies of non-Hermitian systems, where the eigenvalues and the corresponding eigenvectors simultaneously coalesce in parameter space, and…
Strong tunable spin-spin interaction in a weakly coupled nitrogen vacancy spin-cavity electromechanical system
Wei Xiong, Jiaojiao Chen, Baolong Fang +3
The long coherence time of a single nitrogen vacancy (NV) center spin in diamond is a crucial advantage for implementing quantum information processing. However, the realization of…
Nonreciprocity and Unidirectional Invisibility in Cavity Magnonics
Yi-Pu Wang, J. W. Rao, Y. Yang +5
We reveal the cooperative effect of coherent and dissipative magnon-photon couplings in an open cavity magnonic system, which leads to nonreciprocity with a considerably large isol…
Cavity quantum electrodynamics with ferromagnetic magnons in a small yttrium-iron-garnet sphere
Dengke Zhang, Xin-Ming Wang, Tie-Fu Li +4
Hybridizing collective spin excitations and a cavity with high cooperativity provides a new research subject in the field of cavity quantum electrodynamics and can also have potent…