Diamond circuits implement a surface code on a Heavy-Square lattice using about 25% fewer qubits and 40% fewer control lines than the standard circuit, at the cost of a roughly 3x lower threshold and longer detecting regions.
Topological quantum memory,
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Diamond Circuits for Surface Codes
Diamond circuits implement a surface code on a Heavy-Square lattice using about 25% fewer qubits and 40% fewer control lines than the standard circuit, at the cost of a roughly 3x lower threshold and longer detecting regions.