A shadow-evaporated InAs Andreev spin qubit shows a spin relaxation time around 30 microseconds, comparable to etched devices, implying that surface disorder and quasiparticle poisoning are not the dominant relaxation mechanisms.
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Andreev spin relaxation time in a shadow-evaporated InAs weak link
A shadow-evaporated InAs Andreev spin qubit shows a spin relaxation time around 30 microseconds, comparable to etched devices, implying that surface disorder and quasiparticle poisoning are not the dominant relaxation mechanisms.