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We report on the electrical detection of a hybrid magnon-photon system, which is comprised of a magnetic sample coupled to a planar cavity. While the uniform Kittel mode has the largest coupling strength among all the magnon modes, it only…

Mesoscale and Nanoscale Physics · Physics 2020-08-05 Peng-Chao Xu , J. W. Rao , Y. Wang , Y. S. Gui , John Q. Xiao , Xiaofeng Jin , C. -M. Hu

We demonstrate large normal-mode splitting between a magnetostatic mode (the Kittel mode) in a ferromagnetic sphere of yttrium iron garnet and a microwave cavity mode. Strong coupling is achieved in the quantum regime where the average…

We propose a hybrid quantum system in which a magnet supporting non-reciprocal magnons, chiral magnons, or both mediates the dissipative and unidirectional coupling of spin qubits. By driving the qubits, the steady state of this qubit-qubit…

We propose a scheme for entangling the optical and microwave output modes of the respective cavities by using a micro mechanical resonator. The micro-mechanical resonator on one side is capacitively coupled to the microwave cavity and on…

Quantum Physics · Physics 2015-06-05 Sh. Barzanjeh , G. J. Milburn , D. Vitali , P. Tombesi

It was shown [New J. Phys. 17, 103037 (2015)] that large and robust entanglement between two different mechanical resonators could be achieved, either dynamically or in the steady state, in an optomechanical system in which the two…

Quantum Physics · Physics 2017-04-18 Jie Li , Gang Li , Stefano Zippilli , David Vitali , Tiancai Zhang

The rich dynamics and large Hilbert space of quantum harmonic oscillators make them natural candidates for hardware-efficient and error-correctable quantum information processing. However, implementing direct entangling operations between…

Extensive efforts have been expended in developing hybrid quantum systems to overcome the short coherence time of superconducting circuits by introducing the naturally long-lived spin degree of freedom. Among all the possible materials,…

Quantum Physics · Physics 2015-12-09 Xufeng Zhang , Chang-Ling Zou , Na Zhu , Florian Marquardt , Liang Jiang , Hong X. Tang

Cavity magnonics deals with the interaction of magnons - elementary excitations in magnetic materials - and confined electromagnetic fields. We introduce the basic physics and review the experimental and theoretical progress of this young…

Inspired by the discrete-variable pairwise entanglement, in this work, we in theory analyze the continuous-variable pairwise entanglement between microwave modes based on a hybrid optoelectromechanical system, where the multi-pair microwave…

Quantum Physics · Physics 2020-04-02 Qi-Zhi Cai , Jin-Kun Liao , Qiang Zhou

We show how to prepare a steady-state entangled state between magnons and optical photons in an opto-magnomechanical configuration, where a mechanical vibration mode couples to a magnon mode in a ferrimagnet by the dispersive…

Quantum Physics · Physics 2022-11-28 Zhi-Yuan Fan , Hang Qian , Jie Li

We propose a novel approach for microwave and optical fields entanglement using an electrical capacitor loaded with graphene plasmonic waveguide. In the proposed scheme, a quantum microwave signal of frequency f_m drives the electrical…

Quantum Physics · Physics 2021-11-02 Montasir Qasymeh , Hichem Eleuch

We propose a scheme to generate bipartite and tripartite entanglements of three magnon modes in a three-cavity system using a nonlinear optical parametric amplifier (OPA). The three magnon modes in three YIG spheres are respectively placed…

Quantum Physics · Physics 2025-06-17 Ying Zhou , Guo-Qiang Zhang

Recent studies show that hybrid quantum systems based on magnonics provide a new and promising platform for generating macroscopic quantum states involving a large number of spins. Here we show how to entangle two magnon modes in two…

Quantum Physics · Physics 2021-08-31 Wei-Jiang Wu , Yi-Pu Wang , Jin-Ze Wu , Jie Li , J. Q. You

The hybrid microwave optomechanical-magnetic system has recently emerged as a promising candidate for coherent information processing because of the ultrastrong microwave photon-magnon coupling and the longlife of the magnon and phonon. As…

Quantum Physics · Physics 2020-09-22 Chengsong Zhao , Xun Li , Shilei Chao , Rui Peng , Chong Li , Ling Zhou

Inelastic scattering of light by spin waves generates an energy flow between the light and magnetization fields, a process that can be enhanced and controlled by concentrating the light in magneto-optical resonators. Here, we model the…

Mesoscale and Nanoscale Physics · Physics 2018-08-24 Sanchar Sharma , Yaroslav M. Blanter , Gerrit E. W. Bauer

We propose a N\'eel magnetization switching mechanism in a hybrid magnon-phonon optical cavity system. A terahertz-pumped single-mode cavity photon couples to a spin-phonon chain, while the system dissipates energy via different baths. Our…

Strongly Correlated Electrons · Physics 2025-09-24 Mohsen Yarmohammadi , Peter M. Oppeneer , James K. Freericks

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

Reaching strong light-matter coupling in solid-state systems has been long pursued for the implementation of scalable quantum devices. Here, we put forward the concept of a platform capable of achieving strong coupling between magnetic…

Mesoscale and Nanoscale Physics · Physics 2022-05-18 V. A. S. V. Bittencourt , I. Liberal , S. Viola Kusminskiy

Dispersively coupled distant qubits in a shared cavity can become entangled through virtual photon exchange with energy-conserving phase evolution of their quantum states. This interaction can potentially be accelerated by operating on…

Other Condensed Matter · Physics 2026-03-16 Andrei Nikitchenko , Guido Burkard

The connections between thermodynamics and quantum information processing are of paramount importance. Here, we address a bipartite entanglement via extracted work in a cavity magnomechanical system contained inside an yttrium iron garnet…

Quantum Physics · Physics 2024-05-30 M'bark Amghar , Mohamed Amazioug