Enhancing Weak magnetic field sensing of cavity-magnon system with dual frequency modulation
arXiv:2401.13879 · doi:10.1103/PhysRevA.109.023709
Abstract
The crucial limitation of improving the sensitivity of the detection of weak magnetic fields is the unavoidable measurement noise. In this paper, we propose a scheme to achieve precise sensing robust against additional noise by employing a dual-frequency bias field modulation within a cavity magnon system. We find that the anti-rotating wave term can amplify the signal of the detected magnetic field, but this amplification effect must coexist with the rotating wave term. In particular, by the bias field modulation, we find the robustness against cavity field thermal noise is substantially enhanced, quantum noise and cavity field thermal noise is greatly reduced, and the external magnetic field signal is amplified, thereby improving the weak magnetic field sensing system's sensitivity. Compared with the previous scheme, our scheme requires neither an ultra- or deep-strong coupling mechanism nor the suppression of the additional noise by increasing the electromagnetic cooperativity. Our scheme could provide a valuable candidate for weak magnetic field sensing.
References in corpus (16)
- Strongly coupled magnons and cavity microwave photons
- Hybridizing ferromagnetic magnons and microwave photons in the quantum limit
- Hybrid quantum systems based on magnonics
- High Cooperativity Cavity QED with Magnons at Microwave Frequencies
- Magnon Blockade in a Hybrid Ferromagnet-Superconductor Quantum System
- Remote generation of magnon Schrödinger cat state via magnon-photon entanglement
- Ultrasensitive optical magnetometry at the microscale
- Simultaneous blockade of a photon phonon, and magnon induced by a two-level atom
- Exceptional magnetic sensitivity of PT-symmetric cavity magnon polaritons
- Entanglement enhancement in cavity magnomechanics by an optical parametric amplifier
- Coherent Cancellation of Backaction Noise in optomechanical Force Measurements
- Enhanced weak force sensing based on atom-based coherent quantum noise cancellation in a hybrid cavity optomechanical system
- Stable Atomic Magnetometer in Parity-Time Symmetry Broken Phase
- Dynamical Backaction Evading Magnomechanics
- Determining the temperature-dependent London penetration depth in HTS thin films and its effect on SQUID performance
- Ferrimagnetic Oscillator Magnetometer
Cited by in corpus (3)
- Magnon and photon blockade in a hybrid antiferromagnet-cavity quantum system
- Second-order correlation and squeezing of photons in cavities with ultrastrong magnon-photon interactions
- Enhanced Sensing by Geometric Tuning of YIG Spheres: Noise Reduction, Signal Amplification and Directional Magnetic Field Detection