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math.CA2021
Density theorems with applications in quantum signal processing
Rahul Sarkar, Theodore J. Yoder
We study the approximation capabilities of two families of univariate polynomials that arise in applications of quantum signal processing. Although approximation only in the domain…
quant-ph2021★ 4 cited
A graph-based formalism for surface codes and twists
Rahul Sarkar, Theodore J. Yoder
Twist defects in surface codes can be used to encode more logical qubits, improve the code rate, and implement logical gates. In this work we provide a rigorous formalism for const…