Measuring the Kondo Cloud by Current Cross Correlations in Helical Liquids
arXiv:1310.6750 · doi:10.1103/PhysRevB.89.075108
Abstract
The Kondo cloud, represented by the correlations between the magnetic moment and the spin density in the leads of a Kondo setup, is until now eluding its observation. We exploit the unique coupling of spin and direction of motion of the recently discovered helical liquids in a setup with two leads to establish a proportionality between the Kondo cloud and the time resolved current cross correlations. This relation holds around a specific choice of model parameters. Thereby, we provide a new and direct way to detect the Kondo cloud.
8 pages, 2 figures
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Cited by in corpus (11)
- Signatures of Majorana Zero Modes in Spin-Resolved Current Correlations
- Helical Liquids in Semiconductors
- Universal spatial correlations in the anisotropic Kondo screening cloud: analytical insights and numerically exact results from a coherent state expansion
- Helical spin thermoelectrics controlled by a side-coupled magnetic quantum dot in the quantum spin Hall state
- Noise and current correlations in tunnel junctions of Quantum Spin Hall edge states
- Emission of entangled Kramers pairs from a helical mesoscopic capacitor
- Transport through a quantum spin Hall antidot as a spectroscopic probe of spin textures
- Two-channel Kondo problem in coupled interacting helical liquids
- Transport in quantum spin Hall edges in contact to a quantum dot
- Natural orbitals renormalization group approach to a spin-1/2 impurity interacting with two helical liquids
- Auto- and cross-correlations in the spinful topological Kondo model