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We address the photonic spin-orbit coupling known from nano-optics and plasmonics in the microwave regime. The spin $\mathbf{S}$ and momentum $\mathbf{q}$ of microwaves emitted by an excited magnetic particle are locked by…

Mesoscale and Nanoscale Physics · Physics 2024-08-13 Chengyuan Cai , Zubiao Zhang , Ji Zou , Gerrit E. W. Bauer , Tao Yu

Quantum entanglement in mechanical systems is not only a key signature of macroscopic quantum effects, but has wide applications in quantum technologies. Here we proposed an effective approach for creating strong steady-state entanglement…

Quantum Physics · Physics 2017-12-27 Mei Wang , Xin-You Lü , Ying-Dan Wang , J. Q. You , Y. Wu

We examine the entanglement properties of a system that represents two driven microwave cavities each optomechanically coupled to two separate driven optical cavities which are connected by a single-mode optical fiber. The results suggest…

Quantum Physics · Physics 2018-10-17 Samuel R. Hedemann , B. D. Clader

We theoretically propose a scheme to generate distant bipartite entanglement between various subsystems in coupled magnomechanical systems where both the microwave cavities are coupled through single photon hopping parameter. Each cavity…

Quantum Physics · Physics 2023-07-19 Amjad Sohail , Jia-Xin Peng , Abdelkader Hidki , S. K. Singh

The interaction between two magnetic spheres in microwave cavities is studied by Mie scattering theory beyond the magnetostatic and rotating wave approximations. We demonstrate that two spatially separated dielectric and magnetic spheres…

Mesoscale and Nanoscale Physics · Physics 2018-01-22 Babak Zare Rameshti , Gerrit E. W. Bauer

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

Quantum entanglement, a key element for quantum information is generated with a cavity-magnomechanical system. It comprises of two microwave cavities, a magnon mode and a vibrational mode, and the last two elements come from a YIG sphere…

Quantum Physics · Physics 2021-01-26 Zhi-Bo Yang , Jin-Song Liu , Ai-Dong Zhu , Hong-Yu Liu , Rong-Can Yang

Microwaves couple to magnetic moments in both ferromagnets and antiferromagnets. Although the magnons in ferromagnets and antiferromagnets radically differ, they can become entangled via strong coupling to the same microwave mode in a…

Mesoscale and Nanoscale Physics · Physics 2018-08-29 Øyvind Johansen , Arne Brataas

Generating non-classical states in macroscopic systems is a long standing challenge. A promising platform in the context of this quest are novel hybrid systems based on magnetic dielectrics, where photons can couple strongly and coherently…

Mesoscale and Nanoscale Physics · Physics 2021-03-10 Sanchar Sharma , Victor A. S. V. Bittencourt , Alexy D. Karenowska , Silvia Viola Kusminskiy

We show how to prepare macroscopic entanglement between an atomic ensemble and a large number of magnons in a ferrimagnetic YIG crystal. Specifically, we adopt an opto-magnomechanical configuration where the magnetostriction-induced…

Quantum Physics · Physics 2023-08-08 Zhi-Yuan Fan , Hang Qian , Xuan Zuo , Jie Li

We demonstrate the long range strong coupling of magnetostatic modes in spatially separated ferromagnets mediated by a microwave frequency cavity. Two spheres of yttrium iron garnet are embedded in the cavity and their magnetostatic modes…

Materials Science · Physics 2016-02-24 N. J. Lambert , J. A. Haigh , S. Langenfeld , A. C. Doherty , A. J. Ferguson

We investigate theoretically an open dynamics for two modes of electromagnetic field inside a microwave cavity. The dynamics is Markovian and determined by two types of reservoirs: the "natural" reservoirs due to dissipation and temperature…

Quantum Physics · Physics 2010-10-22 R. C. Drumond , L. A. M. Souza , M. Terra Cunha

Microwave near-field quantum control of spin and motional degrees of freedom of 25Mg+ ions can be used to generate two-ion entanglement, as recently demonstrated in Ospelkaus et al. [Nature 476, 181 (2011)]. Here, we describe additional…

Quantum Physics · Physics 2013-02-01 U. Warring , C. Ospelkaus , Y. Colombe , K. R. Brown , J. M. Amini , M. Carsjens , D. Leibfried , D. J. Wineland

Confined spin-wave modes are a promising object for studying nonlinear effects and future quantum technologies. Here, using micromagnetic simulations, we use a microwave magnetic field from a coplanar waveguide (CPW) to pump a standing…

Mesoscale and Nanoscale Physics · Physics 2023-11-27 Nikhil Kumar , Paweł Gruszecki , Mateusz Gołębiewski , Jarosław W. Kłos , Maciej Krawczyk

In this paper, we propose a scheme for generating steady-state entanglement of remote micromechanical oscillators in unidirectionally-coupled cavities. For the system of two mechanical oscillators, we show that when two cavity modes in each…

Quantum Physics · Physics 2015-06-11 Huatang Tan , L. F. Buchmann , H. Seok , Gaoxiang Li

We study creation of entanglement and quantum steering in a parity-time- (PT -) symmetric cavity magnomechanical system. There is magnetic dipole interaction between the cavity and photon-magnon, and there is also magnetostrictive…

Quantum Physics · Physics 2021-04-07 Ming-Song Ding , Chong Li

We propose to realize the two-mode continuous-variable entanglement of microwave photons in an electro-optic system, consisting of two superconducting microwave resonators and one or two optical cavities filled with certain electro-optic…

Quantum Physics · Physics 2017-11-02 Daoquan Zhu , Pengbo Li

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 propose a double-cavity set-up capable of generating a stationary entangled state of two movable mirrors at cryogenic temperatures. The scheme is based on the optimal transfer of squeezing of input optical fields to mechanical…

In the two microwave (MW) cross-shaped cavity magnon system, we describe a method to produce multipartite entanglement and quantum steering. To achieve squeezed states of the magnons, a Josephson parametric amplifier (JPA) creates a…

Quantum Physics · Physics 2024-02-27 Abdelkader Hidki , Abderrahim Lakhfif , Mostafa Nassik , Rizwan Ahmed , Amjad Sohail