3 papers
cond-mat.mes-hall2025
Fast charge noise sensing using a spectator valley state in a singlet-triplet qubit
David W. Kanaar, Yasuo Oda, Mark F. Gyure +1
Semiconductor spin qubits are a promising platform for quantum computing but remain vulnerable to charge noise. Accurate, in situ measurement of charge noise could enable closed-lo…
cond-mat.mes-hall2024
Suppressing Si Valley Excitation and Valley-Induced Spin Dephasing for Long-Distance Shuttling
Yasuo Oda, Merritt P. Losert, Jason P. Kestner
We present a scalable protocol for suppressing errors during electron spin shuttling in silicon quantum dots. The approach maps the valley Hamiltonian to a Landau-Zener problem to…
cond-mat.mes-hall2024
Proposed Five-Electron Charge Quadrupole Qubit
John H. Caporaletti, J. P. Kestner
A charge qubit couples to environmental electric field fluctuations through its dipole moment, resulting in fast decoherence. We propose the p orbital (pO) qubit, formed by the sin…