Nonlocal detection of interlayer three-magnon coupling
- URL: http://arxiv.org/abs/2209.01875v1
- Date: Mon, 5 Sep 2022 10:14:43 GMT
- Title: Nonlocal detection of interlayer three-magnon coupling
- Authors: Lutong Sheng, Mehrdad Elyasi, Jilei Chen, Wenqing He, Yizhan Wang,
Hanchen Wang, Hongmei Feng, Yu Zhang, Israa Medlej, Song Liu, Wanjun Jiang,
Xiufeng Han, Dapeng Yu, Jean-Philippe Ansermet, Gerrit E. W. Bauer and
Haiming Yu
- Abstract summary: A leading nonlinear effect in magnonics is the interaction that splits a high-frequency magnon into two low-frequency ones with conserved linear momentum.
Here, we report experimental observation of nonlocal three-magnon scattering between spatially separated magnetic systems.
Our results help to assess non-local scattering processes in magnonic circuits that may enable quantum entanglement between distant magnons for quantum information applications.
- Score: 5.09854442132323
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: A leading nonlinear effect in magnonics is the interaction that splits a
high-frequency magnon into two low-frequency ones with conserved linear
momentum. Here, we report experimental observation of nonlocal three-magnon
scattering between spatially separated magnetic systems, viz. a CoFeB nanowire
and an yttrium iron garnet (YIG) thin film. Above a certain threshold power of
an applied microwave field, a CoFeB Kittel magnon splits into a pair of
counter-propagating YIG magnons that induce voltage signals in Pt electrodes on
each side, in excellent agreement with model calculations based on the
interlayer dipolar interaction. The excited YIG magnon pairs reside mainly in
the first excited (n=1) perpdendicular standing spin-wave mode. With increasing
power, the n=1 magnons successively scatter into nodeless (n=0) magnons through
a four-magnon process. Our results help to assess non-local scattering
processes in magnonic circuits that may enable quantum entanglement between
distant magnons for quantum information applications.
Related papers
- Fragmented superconductivity in the Hubbard model as solitons in
Ginzburg-Landau theory [58.720142291102135]
Superconductivity and charge density waves are observed in close vicinity in strongly correlated materials.
We investigate the nature of such an intertwined state of matter stabilized in the phase diagram of the elementary $t$-$tprime$-$U$ Hubbard model.
We provide conclusive evidence that the macroscopic wave functions of the superconducting fragments are well-described by soliton solutions of a Ginzburg-Landau equation.
arXiv Detail & Related papers (2023-07-21T18:00:07Z) - Resolving nonclassical magnon composition of a magnetic ground state via
a qubit [44.99833362998488]
We show that a direct dispersive coupling between a qubit and a noneigenmode magnon enables detecting the magnonic number states' quantum superposition.
This unique coupling is found to enable control over the equilibrium magnon squeezing and a deterministic generation of squeezed even Fock states.
arXiv Detail & Related papers (2023-06-08T09:30:04Z) - Quantum interference induced magnon blockade and antibunching in a
hybrid quantum system [0.0]
We study the phenomena of quantum interference assisted magnon blockade and magnon antibunching in a weakly interacting hybrid ferromagnet-superconductor system.
The magnon excitations in two yttrium iron garnet spheres are indirectly coupled to a superconducting qubit through microwave cavity modes of two mutually perpendicular cavities.
arXiv Detail & Related papers (2023-05-15T08:40:50Z) - Dilute neutron star matter from neural-network quantum states [58.720142291102135]
Low-density neutron matter is characterized by the formation of Cooper pairs and the onset of superfluidity.
We model this density regime by capitalizing on the expressivity of the hidden-nucleon neural-network quantum states combined with variational Monte Carlo and reconfiguration techniques.
arXiv Detail & Related papers (2022-12-08T17:55:25Z) - Master equation approach to magnon relaxation and dephasing [0.0]
We study the relaxation and dephasing of magnons based on the Lindblad formalism.
Our results provide the theoretical tools to study the decoherence of magnons within a full quantum-mechanical framework.
arXiv Detail & Related papers (2022-09-07T07:13:01Z) - Magnon mediated spin entanglement in the strong coupling regime [0.0]
Two spin defects (SDs) can be entangled through a magnon polariton mode, within the strong coupling regime.
The thinner AF layers can potentially be used to promote interactions between multiple spins through long range coupling.
arXiv Detail & Related papers (2022-04-06T01:18:19Z) - Multi-Center Magnon Excitations Open the Entire Brillouin Zone to
Terahertz Magnetometry of Quantum Magnets [42.72559625804617]
The magnon density of states can be accessed over the entire Brillouin zone through three-center magnon excitations.
The results of THz time-domain experiments agree remarkably well with linear spin-wave theory.
arXiv Detail & Related papers (2022-03-08T19:04:24Z) - Dissipation-induced nonreciprocal magnon blockade in a magnon-based
hybrid system [6.059733930380898]
We propose an experimentally realizable nonreciprocal magnonic device at the single-magnon level.
Coherent qubit-magnon coupling, mediated by virtual photons in a microwave cavity, leads to the energy-level anharmonicity of the composite modes.
Dissipative counterpart, induced by traveling microwaves in a waveguide, yields inhomogeneous broadenings of the energy levels.
arXiv Detail & Related papers (2021-12-04T14:49:09Z) - 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) - A low-loss ferrite circulator as a tunable chiral quantum system [108.66477491099887]
We demonstrate a low-loss waveguide circulator constructed with single-crystalline yttrium iron garnet (YIG) in a 3D cavity.
We show the coherent coupling of its chiral internal modes with integrated superconducting niobium cavities.
We also probe experimentally the effective non-Hermitian dynamics of this system and its effective non-reciprocal eigenmodes.
arXiv Detail & Related papers (2021-06-21T17:34:02Z) - Anisotropic electron-nuclear interactions in a rotating quantum spin
bath [55.41644538483948]
Spin-bath interactions are strongly anisotropic, and rapid physical rotation has long been used in solid-state nuclear magnetic resonance.
We show that the interaction between electron spins of nitrogen-vacancy centers and a bath of $13$C nuclear spins introduces decoherence into the system.
Our findings offer new insights into the use of physical rotation for quantum control with implications for quantum systems having motional and rotational degrees of freedom that are not fixed.
arXiv Detail & Related papers (2021-05-16T06:15:00Z)
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.