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We propose a theoretical scheme for the generation of nonreciprocal multipartite entanglement in a two-mode cavity magnomechanical system, consisting of two cross-microwave (MW) cavities having a yttrium iron garnet (YIG) sphere, which is…

Quantum Physics · Physics 2024-12-31 Rizwan Ahmed , Hazrat Ali , Aamir Shehzad , S K Singh , Amjad Sohail , Marcos Cesar de Oliveira

Terahertz (THz) spin waves or their quanta, magnons, can be efficiently excited by acoustic phonons because these excitations have similar wavevectors in the THz regime. THz acoustic phonons can be produced using photoacoustic phenomena but…

Mesoscale and Nanoscale Physics · Physics 2024-08-07 Shihao Zhuang , Xufeng Zhang , Yujie Zhu , Nian X. Sun , Chang-Beom Eom , Paul G. Evans , Jia-Mian Hu

We investigate the controllable generation of robust photon entanglement with a circuit cavity electromechanical system, consisting of two superconducting coplanar waveguide cavities (CPWC's) capacitively coupled by a nanoscale mechanical…

Quantum Physics · Physics 2013-10-30 Peng-Bo Li , Shao-Yan Gao , Fu-Li Li

In this work, we study magnon-magnon coupling in synthetic antiferromagnets (SyAFs) using microwave spectroscopy at room temperature. Two distinct spin-wave modes are clearly observed and are hybridised at degeneracy points. We provide a…

Materials Science · Physics 2020-09-16 A. Sud , C. W. Zollitsch , A. Kamimaki , T. Dion , S. Khan , S. Iihama , S. Mizukami , H. Kurebayashi

A photon-magnon hybrid system can be realised by coupling the electron spin resonance of a magnetic material to a microwave cavity mode. The quasiparticles associated with the system dynamics are the cavity magnon polaritons, which arise…

Quantum Physics · Physics 2020-10-26 N. Crescini , C. Braggio , G. Carugno , A. Ortolan , G. Ruoso

We present a theoretical study of synchronization between two strongly driven magnon modes indirectly coupled via a single-mode microwave cavity. Each magnon mode, hosted in separate Yttrium Iron Garnet spheres, interacts coherently with…

Quantum Physics · Physics 2026-03-03 Jatin Ghildiyal , Shubhrangshu Dasgupta , Asoka Biswas

We show how the coherent oscillations of a nanomechanical resonator can be entangled with a microwave cavity in the form of a superconducting coplanar resonator. Dissipation is included and realistic values for experimental parameters are…

Quantum Physics · Physics 2017-08-23 A. K. Ringsmuth , G. J. Milburn

Quantum confinement leads to the formation of discrete electronic states in quantum dots. Here we probe electron-phonon interactions in a suspended InAs nanowire double quantum dot (DQD) that is electric-dipole coupled to a microwave…

Mesoscale and Nanoscale Physics · Physics 2018-03-01 T. R. Hartke , Y. -Y. Liu , M. J. Gullans , J. R. Petta

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 show unusual cooperative two-photon resonance between two-modes of field inside a photonic crystal cavity. The two-photon resonance occurs when two off resonant quantum dots emit one photon in each cavity mode and de-excite…

Quantum Physics · Physics 2020-08-17 J. K. Verma , Harmanpreet Singh , P. K. Pathak , S. Hughes

Unidirectional photon emission is crucial for constructing quantum networks and realizing scalable quantum information processing. In the present work an efficient scheme is developed for the unidirectional emission of a tunable squeezed…

Quantum Physics · Physics 2023-08-31 Ji-kun Xie , Sheng-li Ma , Ya-long Ren , Shao-yan Gao , Fu-li Li

We present that two spin defects (SDs) can be entangled through a magnon polariton mode, within the strong coupling regime. The magnonic modes are provided by an antiferromagnetic (AF) MnF$_{2}$ layer and their dispersion is characterized…

Quantum Physics · Physics 2022-04-07 Vasilios Karanikolas , Takashi Kuroda , Jun-ichi Inoue

There has been a surge of interest in the subwavelength confinement of the electromagnetic fields. It is well known that in optics the subwavelength confinement can be obtained due to surface plasmon (quasielectrostatic) oscillations. In…

Materials Science · Physics 2009-09-01 E. O. Kamenetskii , M. Sigalov , R. Shavit

Coupled microwave photon-magnon hybrid systems offer promising applications by harnessing various magnon physics. At present, in order to realize high coupling strength between the two subsystems, bulky ferromagnets with large spin numbers…

Mesoscale and Nanoscale Physics · Physics 2020-05-20 Justin T. Hou , Luqiao Liu

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 consider a Fabry-Perot cavity made by two moving mirrors and driven by an intense classical laser field. We show that stationary entanglement between two vibrational modes of the mirrors, with effective mass of the order of micrograms,…

Quantum Physics · Physics 2007-10-31 David Vitali , Stefano Mancini , Paolo Tombesi

Entangling gates for electron spins in semiconductor quantum dots are generally based on exchange, a short-ranged interaction that requires wavefunction overlap. Coherent spin-photon coupling raises the prospect of using photons as…

Mesoscale and Nanoscale Physics · Physics 2020-03-04 F. Borjans , X. G. Croot , X. Mi , M. J. Gullans , J. R. Petta

A microwave field is used to control the interaction between pairs of optical photons stored in highly excited collective states (Rydberg polaritons). We show that strong dipole-dipole interactions induced by the microwave field destroy the…

We formulate a scattering theory to study magnetic films in microwave cavities beyond the independent-spin and rotating wave approximations of the Tavis-Cummings model. We demonstrate that strong coupling can be realized not only for the…

Mesoscale and Nanoscale Physics · Physics 2015-03-26 Yunshan Cao , Peng Yan , Hans Huebl , Sebastian T. B. Goennenwein , Gerrit E. W. Bauer

We present a scheme for generating stable and tunable entanglement between two localized Bloch domain walls in nanomagnetic strips kept inside a chiral optical cavity. The entanglement is mediated by the effective optomechanical interaction…

Quantum Physics · Physics 2025-12-30 Rahul Gupta , H. Y. Yuan , Himadri Shekhar Dhar