Theory of quantum acoustomagnonics and acoustomechanics with a micromagnet

Gonzalez-Ballestero, Carlos; Hümmer, Daniel; Gieseler, Jan; Romero‐Isart, Oriol

doi:10.1103/physrevb.101.125404

Cited by 52 publications

(46 citation statements)

References 105 publications

(262 reference statements)

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“…The magnon mode couples to two MW cavity modes via magnetic dipole interaction, and, simultaneously, to a mechanical vibrational mode via the magnetostrictive force [23][24][25]. The mechanical frequency we study is much smaller than the magnon frequency, which yields an effective dispersive magnon-phonon interaction [23,31]. We consider the size of the YIG sphere to be much smaller than the MW wavelengths, hence, neglecting any radiation pressure on the sphere induced by the MW fields.…”

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confidence: 99%

Magnetostrictively Induced Stationary Entanglement between Two Microwave Fields

2020

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We present a scheme to entangle two microwave fields by using the nonlinear magnetostrictive interaction in a ferrimagnet. The magnetostrictive interaction enables the coupling between a magnon mode (spin wave) and a mechanical mode in the ferrimagnet, and the magnon mode simultaneously couples to two microwave cavity fields via the magnetic dipole interaction. The magnon-phonon coupling is enhanced by directly driving the ferrimagnet with a strong red-detuned microwave field, and the driving photons are scattered onto two sidebands induced by the mechanical motion. We show that two cavity fields can be prepared in a stationary entangled state if they are, respectively, resonant with two mechanical sidebands. The present scheme illustrates a new mechanism for creating entangled states of optical fields and enables potential applications in quantum information science and quantum tasks that require entangled microwave fields.

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confidence: 99%

Magnetostrictively Induced Stationary Entanglement between Two Microwave Fields

2020

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“…This quantum engineering challenge might require recruitting other degrees of freedom, e.g. phonons [518], [519]. Ultimately, the potential of magnon-PS interfaces for quantum information processing will only be attested by experimental observation of quantum coherence in a magnon-PS system.…”

Section: K Quantum Interfaces Between Magnons and Paramagnetic Spinsmentioning

confidence: 99%

Advances in Magnetics Roadmap on Spin-Wave Computing

et al. 2022

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Magnonics addresses the physical properties of spin waves and utilizes them for data processing. Scalability down to atomic dimensions, operation in the GHz-to-THz frequency range, utilization of nonlinear and nonreciprocal phenomena, and compatibility with CMOS are just a few of many advantages offered by magnons. Although magnonics is still primarily positioned in the academic domain, the scientific and technological challenges of the field are being extensively investigated, and many proof-of-concept prototypes have already been realized in laboratories. This roadmap is a product of the collective work of many authors that covers versatile spin-wave computing approaches, conceptual building blocks, and underlying physical phenomena. In particular, the roadmap discusses the computation operations with Boolean digital data, unconventional approaches like neuromorphic computing, and the progress towards magnon-based quantum computing. The article is organized as a collection of sub-sections grouped into seven large thematic sections. Each sub-section is prepared by one or a group of authors and concludes with a brief description of current challenges and the outlook of further development for each research direction.

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“…Once detection schemes become available, acoustic phonons will represent a powerful resource. According to theoretical works, a tunable and strong coupling between acoustic phonons and the particle motion can be engineered by using mediating degrees of freedom (e.g., magnons in levitated magnets) [178]. This could enable the use of internal acoustic resonances for motional cooling without the need for external feedback, or for engineering internal and external states via motional control [153], such as squeezed magnonic, acoustic, or motional states.…”

Section: Future Research Directionsmentioning

confidence: 99%

Levitodynamics: Levitation and control of microscopic objects in vacuum

Gonzalez-Ballestero,

Aspelmeyer,

Novotny

et al. 2021

Preprint

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The control of levitated nano-and micro-objects in vacuum is of considerable interest, capitalizing on the scientific achievements in the fields of atomic physics, control theory and optomechanics. The ability to couple the motion of levitated systems to internal degrees of freedom, as well as to external forces and systems, provides opportunities for science and technology. Attractive research directions, ranging from fundamental quantum physics to commercial sensors, have been unlocked by the many recent experimental achievements, including motional ground-state cooling of an optically levitated nanoparticle. We review the status, challenges and prospects of levitodynamics, the mutidisciplinary research devoted to understanding, controlling, and using levitated nano-and micro-objects in vacuum.

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Theory of quantum acoustomagnonics and acoustomechanics with a micromagnet

Cited by 52 publications

References 105 publications

Magnetostrictively Induced Stationary Entanglement between Two Microwave Fields

Magnetostrictively Induced Stationary Entanglement between Two Microwave Fields

Advances in Magnetics Roadmap on Spin-Wave Computing

Levitodynamics: Levitation and control of microscopic objects in vacuum

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