Specifically designed for spin qubits
QTCAD calculates quantities related to spin-qubit systems, such as eigenenergies and envelope functions for confined electrons and holes, many-body energies and chemical potentials, charge stability diagrams, Rabi oscillations, and more.
Arbitrary 2D and 3D geometry
Produce a CAD model for any device of interest and its corresponding first or second-order Lagrange finite-element mesh using Gmsh, and import it into QTCAD to define and run simulations.
Using QTCAD is convenient and easy
Use our Python-based device editing UI to import layouts directly from your GDS file, and specify your heterostructure stack along the growth direction. Our flexible Python API allows users to define and launch a simulation in a few lines of code, and seamlessly integrate with third-party software for data visualisation and analysis, or even with other Python-based software from the quantum ecosystem (e.g. QuTiP) .
QTCAD's adaptive meshing procedure enables it to predict the electrostatic properties of spin qubits at cryogenic temperatures (below 1 K), something that other commercially available TCAD software cannot do.