[10a-N302-1~11] 13.5 Semiconductor devices/ Interconnect/ Integration technologies

9:15 AM - 9:30 AM JST(12:15 AM - 12:30 AM UTC)

[10a-N302-2] Effects of valley splitting on resonant-tunneling readout of spin qubits

〇Tetsufumi Tanamoto¹, Keiji Ono² (1.Teikyo Univ., 2.Riken)

Keywords:

spin qubit,quantum computer,Valley state

We theoretically investigated the effect of valley splitting on the readout process of spin qubits constructed in a three-QD system, aiming at future two-dimensional qubit arrays. In the small valley splitting region and large valley splitting region, we found the parameter region where more than a hundred readouts are expected. In particular, increased mixing of the resonant energy levels enhances the nonlinearity of the current ID and improves the readout in the small valley region.