Controlling magnon-photon coupling in a planar geometry
- URL: http://arxiv.org/abs/2402.03071v1
- Date: Mon, 5 Feb 2024 15:01:57 GMT
- Title: Controlling magnon-photon coupling in a planar geometry
- Authors: Dinesh Wagle, Anish Rai, Mojtaba T. Kaffash and M. Benjamin
Jungfleisch
- Abstract summary: We study magnon-photon coupling using a high-quality factor split-ring resonator.
We find that the coupling is stronger for spheres with a larger diameter as predicted by theory.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The tunability of magnons enables their interaction with various other
quantum excitations, including photons, paving the route for novel hybrid
quantum systems. Here, we study magnon-photon coupling using a high-quality
factor split-ring resonator and single-crystal yttrium iron garnet (YIG)
spheres at room temperature. We investigate the dependence of the coupling
strength on the size of the sphere and find that the coupling is stronger for
spheres with a larger diameter as predicted by theory. Furthermore, we
demonstrate strong magnon-photon coupling by varying the position of the YIG
sphere within the resonator. Our experimental results reveal the expected
correlation between the coupling strength and the rf magnetic field. These
findings demonstrate the control of coherent magnon-photon coupling through the
theoretically predicted square-root dependence on the spin density in the
ferromagnetic medium and the magnetic dipolar interaction in a planar
resonator.
Related papers
- Strong photon coupling to high-frequency antiferromagnetic magnons via topological surface states [0.0]
We show strong coupling between antiferromagnetic magnons and microwave cavity photons at both high and externally controllable magnon frequencies.
This result may advance the utilization of high-frequency cavity magn frequencies and enable its incorporation into quantum information technology.
arXiv Detail & Related papers (2024-10-18T18:00:08Z) - Entropy production rate and correlations of cavity magnomechanical
system [0.44998333629984877]
We present the irreversibility generated by a stationary cavity magnomechanical system composed of a yttrium iron garnet (YIG) sphere with a diameter of a few hundred micrometers inside a microwave cavity.
We find that the behavior of the entropy flow between the cavity photon mode and the phonon mode is determined by the magnon-photon coupling and the cavity photon dissipation rate.
Our results demonstrate the possibility of exploring irreversibility in driven magnon-based hybrid quantum systems and open a promising route for quantum thermal applications.
arXiv Detail & Related papers (2024-01-30T10:00:44Z) - Probing dynamics of a two-dimensional dipolar spin ensemble using single
qubit sensor [62.997667081978825]
We experimentally investigate individual spin dynamics in a two-dimensional ensemble of electron spins on the surface of a diamond crystal.
We show that this anomalously slow relaxation rate is due to the presence of strong dynamical disorder.
Our work paves the way towards microscopic study and control of quantum thermalization in strongly interacting disordered spin ensembles.
arXiv Detail & Related papers (2022-07-21T18:00:17Z) - Measuring the magnon-photon coupling in shaped ferromagnets: tuning of
the resonance frequency [50.591267188664666]
cavity photons and ferromagnetic spins excitations can exchange information coherently in hybrid architectures.
Speed enhancement is usually achieved by optimizing the geometry of the electromagnetic cavity.
We show that the geometry of the ferromagnet plays also an important role, by setting the fundamental frequency of the magnonic resonator.
arXiv Detail & Related papers (2022-07-08T11:28:31Z) - Tuning long-range fermion-mediated interactions in cold-atom quantum
simulators [68.8204255655161]
Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior.
Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
arXiv Detail & Related papers (2022-03-31T13:32:12Z) - Optomagnonics in dispersive media: magnon-photon coupling enhancement at
the epsilon-near-zero frequency [0.0]
Single-magnon photon optomagnonic coupling can be comparable to the uniform magnon's frequency for small magnetic volumes.
Non-linear energy spectrum intrinsic to this coupling regime regime can be probed via the characteristic multiple magnon sidebands in the photon power spectrum.
arXiv Detail & Related papers (2021-10-06T18:00:22Z) - Approaching to the deep-strong photon-to-magnon coupling [0.0]
ultra-strong photon-to-magnon coupling is demonstrated for on-chip multilayered superconductor/ferro/insulator hybrid thin film structures.
High characteristics of coupling are achieved owing to a radical suppression of the photon phase velocity in electromagnetic resonator.
arXiv Detail & Related papers (2021-06-19T08:18:52Z) - Controlled coherent dynamics of [VO(TPP)], a prototype molecular nuclear
qudit with an electronic ancilla [50.002949299918136]
We show that [VO(TPP)] (vanadyl tetraphenylporphyrinate) is a promising system suitable to implement quantum computation algorithms.
It embeds an electronic spin 1/2 coupled through hyperfine interaction to a nuclear spin 7/2, both characterized by remarkable coherence.
arXiv Detail & Related papers (2021-03-15T21:38:41Z) - Chemical tuning of spin clock transitions in molecular monomers based on
nuclear spin-free Ni(II) [52.259804540075514]
We report the existence of a sizeable quantum tunnelling splitting between the two lowest electronic spin levels of mononuclear Ni complexes.
The level anti-crossing, or magnetic clock transition, associated with this gap has been directly monitored by heat capacity experiments.
The comparison of these results with those obtained for a Co derivative, for which tunnelling is forbidden by symmetry, shows that the clock transition leads to an effective suppression of intermolecular spin-spin interactions.
arXiv Detail & Related papers (2021-03-04T13:31:40Z) - Photon Condensation and Enhanced Magnetism in Cavity QED [68.8204255655161]
A system of magnetic molecules coupled to microwave cavities undergoes the equilibrium superradiant phase transition.
The effect of the coupling is first illustrated by the vacuum-induced ferromagnetic order in a quantum Ising model.
A transmission experiment is shown to resolve the transition, measuring the quantum electrodynamical control of magnetism.
arXiv Detail & Related papers (2020-11-07T11:18:24Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.