255 citations · 1.1k across the 21 of their papers we have counts for
21 papers
Phonon-induced Majorana Qubit Relaxation in Tunnel-Coupled Two-Island Topological Superconductors
Yang Song, S. Das Sarma
A Majorana-based qubit can form within the fermion parity subspace of a two-island topological superconductor setup consisting of four Majorana zero modes. We study the relaxation…
Spin-orbit coupling induced two-electron relaxation in silicon donor pairs
Yang Song, S. Das Sarma
We unravel theoretically a key intrinsic relaxation mechanism among the low-lying singlet and triplet donor-pair states in silicon, an important element in the fast-developing fiel…
Statistical exchange-coupling errors and the practicality of scalable silicon donor qubits
Yang Song, S. Das Sarma
Recent experimental efforts have led to considerable interest in donor-based localized electron spins in Si as viable qubits for a scalable silicon quantum computer. With the use o…
Suppressing spin relaxation in silicon
Oleg Chalaev, Yang Song, Hanan Dery
Uniaxial compressive strain along the [001] direction strongly suppresses the spin relaxation in silicon. When the strain level is large enough so that electrons are redistributed…
Impurity-driven intervalley spin-flip scattering-induced 2D spin relaxation in silicon
Yang Song, S. Das Sarma
Through the theoretical study of electron spin lifetime in the 2DEG of doped Si, we highlight a dominant spin relaxation mechanism induced by the impurity central-cell potential ne…
Fast control of semiconductor qubits beyond the rotating-wave approximation
Yang Song, J. P. Kestner, Xin Wang +1
We present a theoretical study of single-qubit operations by oscillatory fields on various semiconductor platforms. We explicitly show how to perform faster gate operations by goin…