Flux noise in disordered spin systems
Flux noise in disordered spin systems
Impurity spins randomly distributed at the surfaces and interfaces of superconducting wires are known to cause flux noise in Superconducting Quantum Interference Devices, providing a mechanism for decoherence in superconducting qubits. While flux noise is well characterised experimentally, the microscopic model underlying spin dynamics remains unknown. First-principles theories are too …