Detecting Spin Transport in Quantum Magnets with Photons
arXiv:1901.00933 · doi:10.1103/PhysRevB.99.174422
Abstract
A minimally invasive technique is proposed for detecting the differential spin conductance and spin current noise across a junction between two quantum magnets using a high-quality microwave resonator coupled to a transmission line which is impedance matched to a photon detector downstream. Photons in the microwave resonator couple inductively to the spins in the spin subsystem, and the noise in the junction spin current imprints itself into the output photons propagating along the transmission line. The technique is capable of extracting both the dc and finite frequency noise via the output photon flux and of measuring the junction spin conductance by driving the electromagnetic environment into a different temperature regime.
arXiv comment5 pages, 2 figures
References in corpus (24)
- Shot Noise in Mesoscopic Conductors
- Introduction to Quantum Noise, Measurement and Amplification
- Probing condensed matter physics with magnetometry based on nitrogen-vacancy centres in diamond
- Nano Superconducting Quantum Interference device: a powerful tool for nanoscale investigations
- Nanometre-scale probing of spin waves using single electron spins
- Single microwave-photon detector using an artificial -type three-level system
- Production and detection of entangled electron-hole pairs in a degenerate electron gas
- Observation of spin current in quantum spin liquid
- Full counting statistics of a general quantum mechanical variable
- Fractional Shot Noise in the Kondo Regime
- Super-Poissonian shot noise of squeezed-magnon mediated spin transport
- Counting statistics of photons produced by electronic shot noise
- The Theory of Spin Noise Spectroscopy: A Review
- Quantum-impurity relaxometry of magnetization dynamics
- Spin current noise of the spin Seebeck effect and spin pumping
- Electron injection in a nanotube: noise correlations and entanglement
- Antibunched photons emitted by a quantum point contact out of equilibrium
- Shot noise in a diffusive F-N-F spin valve
- Spin-Flip Noise in a Multi-Terminal Spin-Valve
- Shot Noise Induced by Nonequilibrium Spin Accumulation
- Measuring Spin Accumulations with Current Noise
- Long time correlations of nonlinear Luttinger liquids
- Noise in tunneling spin current across coupled quantum spin chains
- Spin and Charge Shot Noise in Mesoscopic Spin Hall Systems