Magnon squeezing by two-tone driving of a qubit in cavity-magnon-qubit systems

Abstract

We propose a scheme for preparing magnon squeezed states in a hybrid cavity-magnon-qubit system. The system consists of a microwave cavity that simultaneously couples to a magnon mode of a macroscopic yttrium-iron-garnet (YIG) sphere via the magnetic-dipole interaction and to a transmon-type superconducting qubit via the electric-dipole interaction. By far detuning from the magnon-qubit system, the microwave cavity is adiabatically eliminated. The magnon mode and the qubit then get effectively coupled via the mediation of virtual photons of the microwave cavity. We show that by driving the qubit with two microwave fields and by appropriately choosing the drive frequencies and strengths, magnonic parametric amplification can be realized, which leads to magnon quadrature squeezing with the noise below vacuum fluctuation. We provide optimal conditions for achieving magnon squeezing, and moderate squeezing can be obtained using currently available parameters. The generated squeezed states are of a magnon mode involving more than $10^{18}$ spins and thus macroscopic quantum states. The work may find promising applications in quantum information processing and high-precision measurements based on magnons and in the study of macroscopic quantum states.

To appear in PRA

References in corpus (28)

• Hybrid quantum systems based on magnonics
• Quantum magnonics: when magnon spintronics meets quantum information science
• Effective Hamiltonian Theory and Its Applications in Quantum Information
• Hybrid magnonics: physics, circuits and applications for coherent information processing
• Mechanical Bistability in Kerr-modified Cavity Magnomechanics
• Magnon Blockade in a Hybrid Ferromagnet-Superconductor Quantum System
• Schrödinger cat states of a 16-microgram mechanical oscillator
• Quantum control of a single magnon in a macroscopic spin system
• Remote generation of magnon Schrödinger cat state via magnon-photon entanglement
• Dynamical Backaction Magnomechanics
• Quantum state preparation, tomography, and entanglement of mechanical oscillators
• Resources of nonlinear cavity magnonics for quantum information
• Optomechanical quantum teleportation
• Simultaneous blockade of a photon phonon, and magnon induced by a two-level atom
• Dissipation-induced nonreciprocal magnon blockade in a magnon-based hybrid system
• Remote magnon entanglement between two massive ferrimagnetic spheres via cavity optomagnonics
• Spin cat states in a ferromagnetic insulator
• Magnon squeezing enhanced ground-state cooling in cavity magnomechanics
• Squeezing Microwaves by Magnetostriction
• Perfect Transfer of enhanced entanglement and asymmetric steering in a cavity magnomechanical system
• Bilinear and quadratic Hamiltonians in two-mode cavity quantum electrodynamics
• Generation of Bell and GHZ states from a hybrid qubit-photon-magnon system
• Steady entangled-state generation via cross-Kerr effect in a ferrimagnetic crystal
• Generation of long-lived $W$ states via reservoir engineering in dissipatively coupled systems
• Entangling mechanical vibrations of two massive ferrimagnets by fully exploiting the nonlinearity of magnetostriction
• Chirality-induced one-way quantum steering between two waveguide-mediated ferrimagnetic microspheres
• Unconventional magnon excitation by off-resonant microwaves
• Floquet generation of magnonic NOON state

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• Magnon squeezing via reservoir-engineered optomagnomechanics
• High dynamic-range quantum sensing of magnons and their dynamics using a superconducting qubit
• Second-order correlation and squeezing of photons in cavities with ultrastrong magnon-photon interactions
• Magnon cat states in a cavity-magnon-qubit system via two-magnon driving and dissipation
• Nonreciprocal Macroscopic Entanglement through Magnon Squeezing in a Cavity Magnomechanics
• Magnon squeezing near a quantum critical point in a cavity-magnon-qubit system
• Phase-switchable nonreciprocal entanglement via magnon squeezing in ring-cavity optomagnomechanics