WU Yi-fan

Enrichment Lengthens Coherence but Barely Changes Circuit Success: A Model of Silicon Spin Qubits

Abstract - Silicon spin qubits can be built in existing chip factories, but three physical mechanisms limit them: charge noise, hyperfine coupling to residual 29Si nuclear spins, and phonon-driven relaxation. Many groups enrich silicon to remove the 29Si, so I ask whether that is...