Lotte Geck

With the increasing activities of designing (cryogenic) circuits for qubits, the necessity for simulation tools for qubit-electronics combinations is rising as well. This is especially true for semiconductor spin qubits where the potential of large-scale 3D integration is counted as a deciding advantage of the technology. To realize 3D integration with dedicated electronics, combined simulations (co-simulations) are essential.  Different ideas have been proposed for co-simulation, from integrating qubits into circuit schematic simulators [1-3], to using interfaces between different software tools [1,4]. These ideas differ in their computational complexity, but also in the accuracy and the inclusion of physical properties. We will present a review on the current state of the art and show current results of ongoing co-simulation efforts.

[1] J. P. G. van Dijk, “Designing the Electronic Interface for Qubit Control,” 2021, doi: 10.4233/uuid:7abc3f2a-ed28-42d4-8ae4-f86426777884

[2] B. Gys et al., “Circuit Model for the Efficient Co-Simulation of Spin Qubits and their Control amp; Readout Circuitry,” in ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference (ESSCIRC), Sep. 2021, pp. 63–66. doi: 10.1109/ESSCIRC53450.2021.9567789

[3] M. Borgarino, “Circuit-Based Compact Model of Electron Spin Qubit,” Electronics, vol. 11, no. 4, Art. no. 4, Jan. 2022, doi: 10.3390/electronics11040526.

[4] L. Geck, “Qubit Gate Quality Loss Through Circuit Parasitics and Noise”. In PhD Research in Microelectronics 2021