  A computing platform based on low temperature superconductors (LTS) has
already been proven both theoretically and experimentally. However, qubits
based on high Tc superconductors (HTS) are not yet well understood. Here we
study the Andreev bounds states (ABS) in the later materials in order to show
that a formal correspondence exists between the Mathieu levels in a Cooper Pair
Box qubit built with LTS and the Andreev levels in HTS junctions.
