Strong coupling-enabled broadband non-reciprocity
arXiv:1910.14117 · doi:10.1103/PhysRevApplied.13.044039
Abstract
Non-reciprocity of signal transmission enhances capacity of communication channels and protects transmission quality against possible signal instabilities, thus becoming an important component ensuring coherent information processing. However, non-reciprocal transmission requires breaking time-reversal symmetry (TRS) which poses challenges of both practical and fundamental character hindering the progress. Here we report a new scheme for achieving broadband non-reciprocity using a specially engineered hybrid microwave cavity. The TRS breaking is realized via strong coherent coupling between a selected chiral mode in the microwave cavity and a single collective spin excitation (magnon) in a ferromagnetic yttrium iron garnet (YIG) sphere. The non-reciprocity in transmission is observed spanning nearly a 0.5 GHz frequency band, which outperforms by two orders of magnitude the previously achieved bandwidths. Our findings open new directions for robust coherent information processing in a broad range of systems in both classical and quantum regimes.
11 pages, 7 figures
References in corpus (15)
- Strongly coupled magnons and cavity microwave photons
- Hybridizing ferromagnetic magnons and microwave photons in the quantum limit
- Quantum technologies with hybrid systems
- High Cooperativity Cavity QED with Magnons at Microwave Frequencies
- Spin Pumping in Electrodynamically Coupled Magnon-Photon Systems
- Nonreciprocity and Unidirectional Invisibility in Cavity Magnonics
- Non-Reciprocal Brillouin Scattering Induced Transparency
- Nonreciprocity and magnetic-free isolation based on optomechanical interactions
- Non-Hermitian Quantum Sensing: Fundamental Limits and Non-Reciprocal Approaches
- Characterizing optical chirality
- Excitation of unidirectional exchange spin waves by a nanoscale magnetic grating
- Exceptional Points in a Microwave Billiard with Time-Reversal Invariance Violation
- Nonreciprocity realized with quantum nonlinearity
- Broadening Frequency Range of a Ferromagnetic Axion Haloscope with Strongly Coupled Cavity-Magnon Polaritons
- Induced Time-Reversal Symmetry Breaking Observed in Microwave Billiards
Cited by in corpus (30)
- Roadmap on Spin-Wave Computing
- Hybrid magnonics: physics, circuits and applications for coherent information processing
- Coherent and Dissipative Cavity Magnonics
- Chirality as Generalized Spin-Orbit Interaction in Spintronics
- Floquet Cavity Electromagnonics
- Perspective: non-Hermitian physics in magnetic systems
- Magnon-photon strong coupling for tunable microwave circulators
- Circulating cavity magnon polaritons
- Nonreciprocal high-order sidebands induced by magnon Kerr nonlinearity
- Experimental generation of circulating cavity magnon polaritons
- Optimal broad-band frequency conversion via a magnomechanical transducer
- Nonreciprocal Multi-mode and Indirect Couplings in Cavity Magnonics
- Realization of the unidirectional amplification in a cavity magnonic system
- Anti-PT-symmetry-enhanced interconversion between microwave and optical fields
- Polaritonic Quantum Matter
- Unidirectional Microwave Transduction with Chirality Selected Short-Wavelength Magnon Excitations
- Chiral coupling between a ferromagnetic magnon and a superconducting qubit
- High dynamic-range quantum sensing of magnons and their dynamics using a superconducting qubit
- Coherent control of magnon-polaritons using an exceptional point
- Temperature dependence of the magnon-phonon interaction in high overtone bulk acoustic resonator-ferromagnetic thin film hybrids
- Phase-resolved electrical detection of coherently coupled magnonic devices
- Nonreciprocal entanglement in cavity magnomechanics exploiting chiral cavity-magnon coupling
- Ultrastrongly-coupled and Directionally-nonreciprocal Magnon-polaritons in Magnetochiral Metamolecules
- Transmon probe for quantum characteristics of magnons in antiferromagnets
- Nonreciprocal Spin Waves Driven by Left-Hand Microwaves
- Investigation of Phonon Lifetimes and Magnon-Phonon Coupling in YIG/GGG Hybrid Magnonic Systems in the Diffraction Limited Regime
- Microwave Cavity Mode Optimisation by Background Anti-Resonance Tuning
- Theory and Experiment of Chirality-induced Magnetic Nonreciprocity Manifested by Coupling Phase
- Chiral Magnons: Mechanisms and Research Progress
- Microwave One-way Transparency by Large Synthetic Motion of Magnetochiral Polaritons in Metamolecules