Optomagnonics in dispersive media: magnon-photon coupling enhancement at the epsilon-near-zero frequency

• URL: http://arxiv.org/abs/2110.02984v2
• Date: Mon, 15 Nov 2021 17:52:47 GMT
• Title: Optomagnonics in dispersive media: magnon-photon coupling enhancement at the epsilon-near-zero frequency
• Authors: V. A. S. V. Bittencourt and I. Liberal and S. Viola Kusminskiy
• Abstract summary: 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.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: 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 excitations (magnons) and optics based in an epsilon-near-zero medium, that's it, a medium in which the permittivity is close to zero. We adopt a phenomenological approach to quantize the electromagnetic field inside a dispersive magnetic medium and obtain a Hamiltonian describing the interaction between photons and magnons and the frequency-dependent coupling. We predict that, in the epsilon-near-zero regime, the single-magnon photon optomagnonic coupling can be comparable to the uniform magnon's frequency for small magnetic volumes. For state-of-the-art illustrative values, this would correspond to achieving the single-magnon strong coupling regime, where the coupling rate is larger than all the decay rates. Finally, we show that the non-linear energy spectrum intrinsic to this coupling regime regime can be probed via the characteristic multiple magnon sidebands in the photon power spectrum.

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)
• Entanglement of photonic modes from a continuously driven two-level system [34.50067763557076]
  We experimentally generate entangled photonic modes by continuously exciting a quantum emitter, a superconducting qubit, with a coherent drive. We show that entanglement is generated between modes extracted from the two sidebands of the resonance fluorescence spectrum. Our approach can be utilized to distribute entanglement at a high rate in various physical platforms.
  arXiv  Detail & Related papers  (2024-07-10T18:48:41Z)
• 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)
• Strong coupling between a single photon and a photon pair [43.14346227009377]
  We report an experimental observation of the strong coupling between a single photon and a photon pair in an ultrastrongly-coupled circuit-QED system. Results represent a key step towards a new regime of quantum nonlinear optics.
  arXiv  Detail & Related papers  (2024-01-05T10:23:14Z)
• Meter-scale strong coupling between magnons and photons [4.583945605910229]
  We experimentally realize a meter-scale strong coupling effect between magnons and photons at room temperature. We integrate a saturable gain into a microwave cavity and then couple this active cavity to a magnon mode via a long coaxial cable.
  arXiv  Detail & Related papers  (2023-03-20T07:52:55Z)
• Resolving Fock states near the Kerr-free point of a superconducting resonator [51.03394077656548]
  We have designed a tunable nonlinear resonator terminated by a SNAIL (Superconducting Asymmetric Inductive eLement) We have excited photons near this Kerr-free point and characterized the device using a transmon qubit.
  arXiv  Detail & Related papers  (2022-10-18T09:55:58Z)
• 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)
• Light propagation and magnon-photon coupling in optically dispersive magnetic media [0.0]
  We present a derivation of the magnon-photon coupling Hamiltonian in dispersive media. We show that the coupling of magnons to plane-wave non-degenerate modes vanishes at specific frequencies due to polarization selection rules tuned by dispersion. Our results pave the way for the design of dispersive optomagnonic systems.
  arXiv  Detail & Related papers  (2021-11-10T18:59:52Z)
• 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)
• Fast electrical modulation of strong near-field interactions between erbium emitters and graphene [42.60602838972598]
  We show fast, all-electrical modulation of the near-field interactions between a nanolayer of erbium emitters and graphene. We demonstrate strong interactions with a >1,000-fold increased decay rate for 25% of the emitters. This opens routes to quantum entanglement generation by collective plasmon emission or photon emission with controlled waveform.
  arXiv  Detail & Related papers  (2020-07-22T08:48:01Z)
• Non-reciprocal Cavity Polariton with Atoms Strongly Coupled to Optical Cavity [21.013802417752025]
  We experimentally demonstrate a chiral cavity QED system with multiple atoms strongly coupled to a Fabry-Perot cavity. By polarizing the internal quantum state of the atoms, the time-reversal symmetry of the atom-cavity interaction is broken. The strongly coupled atom-cavity system can be described by non-reciprocal quasiparticles, i.e., the cavity polariton.
  arXiv  Detail & Related papers  (2019-11-23T02:32:21Z)

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.