82 citations · 203 across the 7 of their papers we have counts for
7 papers
Theory of Silicon Spin Qubit Relaxation in a Synthetic Spin-Orbit Field
Amin Hosseinkhani, Guido Burkard
We develop the theory of single-electron silicon spin qubit relaxation in the presence of a magnetic field gradient. Such field gradients are routinely generated by on-chip microma…
Switching between relaxation hotspots and coldspots in disordered spin qubits
Amin Hosseinkhani, Guido Burkard
We develop a valley-dependent envelope function theory that can describe the effects of arbitrary configurations of interface steps and miscuts on the qubit relaxation time. For a…
Electromagnetic control of valley splitting in ideal and disordered Si quantum dots
Amin Hosseinkhani, Guido Burkard
In silicon spin qubits, the valley splitting must be tuned far away from the qubit Zeeman splitting to prevent fast qubit relaxation. In this work, we study in detail how the valle…
Proximity effect in normal-metal quasiparticle traps
A. Hosseinkhani, G. Catelani
In many superconducting devices, including qubits, quasiparticle excitations are detrimental. A normal metal () in contact with a superconductor () can trap these excitations…
Optimal configurations for normal-metal traps in transmon qubits
A. Hosseinkhani, R. -P. Riwar, R. J. Schoelkopf +2
Controlling quasiparticle dynamics can improve the performance of superconducting devices. For example, it has been demonstrated effective in increasing lifetime and stability of s…
Normal-metal quasiparticle traps for superconducting qubits
R. -P. Riwar, A. Hosseinkhani, L. D. Burkhart +4
The presence of quasiparticles in superconducting qubits emerges as an intrinsic constraint on their coherence. While it is difficult to prevent the generation of quasiparticles, k…