SiGe quantum wells with oscillating Ge concentrations for quantum dot qubits
oleh: Thomas McJunkin, Benjamin Harpt, Yi Feng, Merritt P. Losert, Rajib Rahman, J. P. Dodson, M. A. Wolfe, D. E. Savage, M. G. Lagally, S. N. Coppersmith, Mark Friesen, Robert Joynt, M. A. Eriksson
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2022-12-01 |
Deskripsi
Quantum-dot spin qubits in Si/SiGe quantum wells require a large and uniform valley splitting for robust operation and scalability. Here the authors introduce and characterize a new heterostructure with periodic oscillations of Ge atoms in the quantum well, which could enhance the valley splitting.