Unconventional magnon excitation by off-resonant microwaves
arXiv:2009.07948 · doi:10.1103/PhysRevB.103.134409
Abstract
It is widely recognized that a physical system can only respond to a periodic driving significantly when the driving frequency matches the normal mode frequency of the system, which leads to resonance. Off-resonant phenomena are rarely considered because of the difficulty to realize strong coupling between physical systems and off-resonant waves. Here we examine the response of a magnetic system to squeezed light and surprisingly find that the magnons are maximally excited when the effective driving frequency is several orders of magnitude larger than the resonant frequency. The generated magnons are squeezed which brings the advantage of tunable squeezing through an external magnetic field. Furthermore, we demonstrate that such off-resonant quasi-particle excitation is universal in all the hybrid systems in which the coherent and parametric interaction of bosons exists and that it is purely a quantum effect, which is rooted in the quantum fluctuations of particles in the squeezed vacuum. Our findings may provide an unconventional route to study off-resonant phenomena and may further benefit the use of hybrid matter-light systems in continuous variable quantum information.
arXiv comment12 pages, 7 figures
References in corpus (34)
- Cavity Optomechanics
- QuTiP 2: A Python framework for the dynamics of open quantum systems
- Spin Torque Ferromagnetic Resonance Induced by the Spin Hall Effect
- Strongly coupled magnons and cavity microwave photons
- High cooperativity in coupled microwave resonator ferrimagnetic insulator hybrids
- High Cooperativity Cavity QED with Magnons at Microwave Frequencies
- Bistability of Cavity Magnon Polaritons
- Spin Pumping in Electrodynamically Coupled Magnon-Photon Systems
- Entanglement-based single-shot detection of a single magnon with a superconducting qubit
- Nonreciprocity and Unidirectional Invisibility in Cavity Magnonics
- Quantification of Gaussian quantum steering
- Strong-field interactions between a nanomagnet and a photonic cavity
- Level Attraction Due to Dissipative Magnon-Photon Coupling
- All-magnonic spin-transfer torque and domain wall propagation
- Quantum entanglement between two magnon modes via Kerr nonlinearity
- Steady Bell state generation via magnon-photon coupling
- Exchange Magnon-Polaritons in Microwave Cavities
- Coherent magnetization precession in ferromagnetic (Ga,Mn)As induced by picosecond acoustic pulses
- Abnormal anti-crossing effect in photon-magnon coupling
- Raman fingerprint of two terahertz spin wave branches in a two-dimensional honeycomb Ising ferromagnet
- Enhancement of antiferromagnetic magnon-magnon entanglement by cavity cooling
- Realization of Attractive Level Crossing via a Dissipative Mode
- Synchronized spin-photon coupling in a microwave cavity
- Super-Poissonian shot noise of squeezed-magnon mediated spin transport
- Parallel pumping for magnon spintronics: Amplification and manipulation of magnon spin currents on the micron-scale
- Theory of Microwave Parametric Down Conversion and Squeezing Using Circuit QED
- Spin cat states in a ferromagnetic insulator
- Magnon-squeezing as a niche of quantum magnonics
- Twisted magnon as a magnetic tweezer
- Intracavity-squeezed optomechanical cooling
- Introducing coherent time control to cavity-magnon-polariton modes
- Breaking the current density threshold in spin-orbit-torque magnetic random access memory
- Microwave degenerate parametric down-conversion with a single cyclic three-level system in circuit QED
- Negative Gilbert damping in cavity optomagnonics
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