| CPC G06N 10/20 (2022.01) [G06N 10/40 (2022.01)] | 20 Claims |
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1. A computing system comprising:
a quantum computing device including:
a Majorana island at which a plurality of Majorana zero modes (MZMs) are instantiated;
a quantum dot (QD) configured to be electrically connectable to the Majorana island via an MZM of the plurality of MZMs;
an electrical ground; and
a capacitance sensor; and
a controller configured to:
in each of a plurality of sampling iterations, control the quantum computing device to:
electrically couple the Majorana island to the electrical ground while a first plunger gate located proximate to the Majorana island is set to an idle voltage;
disconnect the Majorana island from the electrical ground;
electrically couple the Majorana island to the QD;
via the capacitance sensor, scan over a plurality of values of a first plunger gate voltage applied to the first plunger gate and a second plunger gate voltage applied to a second plunger gate located proximate to the QD; and
output, to the controller, respective quantum capacitance measurements obtained at the plurality of values of the first plunger gate voltage and the second plunger gate voltage;
receive the quantum capacitance measurements;
based at least in part on the quantum capacitance measurements, determine a measured distribution of a respective plurality of resonance regions associated with the sampling iterations;
based at least in part on the measured distribution, identify a minimum-energy resonance region of the plurality of resonance regions that corresponds to a minimum energy value of the Majorana island; and
output the minimum-energy resonance region identification.
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