4. Quantum Error Correction
Surfacecodes — Quiz
Test your understanding of surfacecodes with 5 practice questions.
Practice Questions
Question 1
How many physical data qubits are required for the smallest distance-3 planar surface code logical qubit?
Question 2
What is the approximate error threshold $p_{\mathrm{th}}$ for a 2D surface code under depolarizing noise with nearest-neighbour interactions?
Question 3
What distinguishes a defect-based surface code from a planar surface code?
Question 4
Which boundary type in a planar surface code is defined by the absence of plaquette (Z-type) stabilizers?
Question 5
In lattice surgery, merging two surface code patches along their smooth boundaries performs which logical operation?