Topology of a Cooper Pair Transistor
R. Draškić (TU Delft - Applied Sciences)
A.R. Akhmerov – Mentor (TU Delft - QN/Akhmerov Group)
G.A. Steele – Graduation committee member (TU Delft - QN/Steele Lab)
M.T. Wimmer – Graduation committee member (TU Delft - QRD/Wimmer Group)
V. Fatemi – Graduation committee member (Yale University)
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Abstract
Superconducting quantum circuits came out as promising candidates for the exploration of topological phenomena that are currently inaccessible in condensed
matter systems. One such circuit is a Cooper pair transistor which has already
been widely studied in different regimes of operation due to its importance in
quantum computation. However, it has only recently been appreciated that
a Cooper pair transistor hosts a non-trivial Chern number and topologically
protected current switching behavior. We provide here a more detailed analysis
of Cooper pair transistor operation for different parameter regimes and explore
the quantized ac current.