Local Probe of the Kondo Length at a Y-Junction of Critical Quantum Ising Chains
2020
We estimate the screening length associated to the Kondo effect at a Y-junction of quantum Ising chains from the scaling behavior of the local magnetization at the junction. We propose a simple way to probe the Kondo screening length in a system whose parameters, including the effective length of the chains, can be in principle tuned at wish.
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