Monthly Archives: October 2025

Problem: In numerical computation, what are the \(2\) main kinds of rounding error? Solution: Overflow error (\(N\approx\infty\)) but perhaps even more dangerous is underflow error (\(\varepsilon\approx 0\)) which are in some sense inverses of each other: \[0=\frac{1}{\infty}\] Problem: Explain how … Continue reading →

Problem: Draw a schematic of a binary symmetric channel (BSC) with bit flip probability \(p_f\). Solution: Classically, one has: On the other hand, taking a more quantum perspective, in the computational basis \((|0\rangle,|1\rangle)\) one might define a binary symmetric channel … Continue reading →