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Cavity-magnon systems, combining magnons and photons, offer a versatile platform for studying quantum entanglement and advancing quantum information science. In this work, we propose a scheme for generating nonreciprocal magnon-magnon…

Quantum Physics · Physics 2026-05-15 Zhisheng Xu , Mengxue Li , Chunfang Sun , Gangcheng Wang

A gain-assisted plasmonic waveguide with two detuned resonators is investigated in the plasmon-induced transparency window. Phase map is employed to study power transmittance and group delay for varying gain coefficients and frequency…

Optics · Physics 2016-02-11 Zi-Lan Deng , Jian-Wen Dong , He-Zhou Wang , S. H. Cheng , Jensen Li

Squeezed states, crucial for quantum metrology and emerging quantum technologies, have been demonstrated in various platforms, but quantum squeezing of magnons in macroscopic spin systems remains elusive. Here we report the experimental…

Quantum Physics · Physics 2026-03-25 Yuan-Chao Weng , Da Xu , Zhen Chen , Li-Zhou Tan , Xu-Ke Gu , Jie Li , Hai-Feng Yu , Shi-Yao Zhu , Xuedong Hu , Franco Nori , J. Q. You

We report the observation of photon generation in a microwave cavity with a time-dependent boundary condition. Our system is a microfabricated quarter-wave coplanar waveguide cavity. The electrical length of the cavity is varied using the…

Quantum Physics · Physics 2011-01-13 C. M. Wilson , T. Duty , M. Sandberg , F. Persson , V. Shumeiko , P. Delsing

We demonstrate coherent control of time domain ferromagnetic resonance by all electrical excitation and detection. Using two ultrashort magnetic field steps with variable time delay we control the induction decay in yttrium iron garnet…

Mesoscale and Nanoscale Physics · Physics 2015-06-22 O. Wid , M. Wahler , N. Homonnay , T. Richter , G. Schmidt

This note presents a method to tune the resonant frequency $f_{0}$ of a rectangular microwave cavity. This is achieved using a liquid metal, GaInSn, to decrease the volume of the cavity. It is possible to shift $f_{0}$ by filling the cavity…

Instrumentation and Detectors · Physics 2018-04-11 C. S. Gallo , E. Berto , C. Braggio , F. Calaon , G. Carugno , N. Crescini , A. Ortolan , G. Ruoso , M. Tessaro

A dense system of independent oscillators, connected only by their interaction with the same cavity excitation mode, will radiate coherently, which effect is termed superradiance. In several cases, especially if the density of oscillators…

Materials Science · Physics 2020-12-18 L. Weymann , A. Shuvaev , A. Pimenov , A. A. Mukhin , D. Szaller

The anisotropic dispersion and inherent nonlinearity of magnetostatic spin waves in thin films and confined structures provide unique opportunities for implementation in next-generation magnonic devices for data and signal processing. A…

Materials Science · Physics 2026-05-19 Stephanie R. Lake , Marc Eger , Philipp Geyer , Rouven Dreyer , Seth W. Kurfman , Georg Schmidt

Cavity photons and ferromagnetic spins excitations can exchange information coherently in hybrid architectures, at speeds set by their mutual coupling strength. Speed enhancement is usually achieved by optimizing the geometry of the…

We study an optomechanical transistor, where an input field can be transferred and amplified unidirectionally in a cyclic three-mode optomechanical system. In this system, the mechanical resonator is coupled simultaneously to two cavity…

Quantum Physics · Physics 2018-04-18 X. Z. Zhang , Lin Tian , Yong Li

Ground-state cooling is essential for accessing the quantum regime and enabling quantum control of macroscopic systems. However, achieving optomechanical cooling in the unresolved-sideband regime ($\omega_b < \kappa$) remains challenging.…

Quantum Physics · Physics 2025-08-14 Xiao-Hong Fan , Qin-Geng Chen , Jiaojiao Chen , Wei Xiong

Cavity-mediated magnon-magnon coupling can lead to a transfer of spin-wave excitations between two spatially separated magnetic samples. We enunciate how the application of a two-photon parametric drive to the cavity can lead to stark…

Quantum Physics · Physics 2022-12-14 Debsuvra Mukhopadhyay , Jayakrishnan M. P. Nair , G. S. Agarwal

In this work, we study the phenomena of quantum interference assisted magnon blockade and magnon antibunching in a weakly interacting hybrid ferromagnet-superconductor system. The magnon excitations in two yttrium iron garnet spheres are…

Quantum Physics · Physics 2023-05-16 Pooja Kumari Gupta , Sampreet Kalita , Amarendra K. Sarma

Cavity magnomechanics is one important hybrid magnonic platform that focuses on the coherent interaction between magnons and phonons. The resulting magnon polarons inherit the intrinsic properties of both magnons and phonons, combining…

Mesoscale and Nanoscale Physics · Physics 2024-12-24 Yu Jiang , Jing Xu , Zixin Yan , Amin Pishehvar , Xufeng Zhang

The ability to achieve strong-coupling has made cavity-magnon systems an exciting platform for the development of hybrid quantum systems and the investigation of fundamental problems in physics. Unfortunately, current experimental…

Applied Physics · Physics 2020-07-07 C. A. Potts , J. P. Davis

We propose a method to exploit high finesse optical resonators for light assisted coherent manipulation of atomic ensembles, overcoming the limit imposed by the finite response time of the cavity. The key element of our scheme is to rapidly…

Atomic Physics · Physics 2021-07-07 A. Bertoldi , C. -H. Feng , D. S. Naik , B. Canuel , P. Bouyer , M. Prevedelli

We present an alternative scheme to achieve nonreciprocal unconventional magnon blockade (NUMB) in a hybrid system formed by two microwave cavities and one yttrium iron garnet (YIG) sphere, where the pump and signal cavities interact…

Quantum Physics · Physics 2026-04-29 Han-Qiu Zhang , Shuang-Shuo Chu , Jian-Song Zhang , Wen-Xue Zhong , Guang-Ling Cheng

Magnons are the energy quanta of fundamental spin excitations, namely spin waves, and they can make a considerable contribution to energy transport in some magnetic materials in a similar manner as lattice vibration waves or phonons. The…

Cavity magnomechanics using mechanical degrees of freedom in ferromagnetic crystals provides a powerful platform for observing many interesting classical and quantum nonlinear phenomena in the emerging field of magnon spintronics. However,…

Chaotic Dynamics · Physics 2024-07-19 Jiao Peng , Zeng-Xing Liu , Ya-Fei Yu , Hao Xiong

We report thermal control of mode hybridization between the ferromagnetic resonance (FMR) and a planar resonator (notch filter) working at 4.74 GHz. The chosen magnetic material is a ferrimagnetic insulator (Yttrium Iron Garnet: YIG)…