Quantum Computing Stack Exchange
Q&A for engineers, scientists, programmers, and computing professionals interested in quantum computing
Quantum Computing Stack Exchange
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Newest Questions - Quantum Computing Stack Exchange
3 days ago · Q&A for engineers, scientists, programmers, and computing professionals interested in quantum computing
Tour - Quantum Computing Stack Exchange
Quantum Computing Stack Exchange is a question and answer site for scientists, engineers, mathematicians, programmers and computing professionals interested in quantum computing …
Implementing "Classical AND Gate" and "Classical OR Gate" with a ...
Quantum cNOT Gate (Classical XOR Gate) A "Controlled NOT (cNOT) Gate" flips the 2nd qubit if the 1st qubit is $\left|1\right>$, and returns the 2nd qubit as-is if the 1st qubit is $\left|0\righ...
Erasure errors in quantum error correction
Dec 19, 2023 · Thanks, and sorry if this is a dumb question or I am missing something trivial but with the partial trace (or partial trace and replace with the 0 state) operation, it seems like the …
Understanding detectors in stim - Quantum Computing Stack …
Oct 25, 2024 · I'm getting started with STIM but I'm struggling with the interpretation of detectors. For example take the following circuit The "getting started" jupyter notebook says A …
Expectation values using qiskit - Quantum Computing Stack …
Jan 25, 2024 · Expectation values can be calculated using $\\bf{Matrix}$ $\\bf{mechanics}:$ $A$ has eigenvalues $\\lambda_j$ and eigenstates $\\Phi_j$. Then the expectation value of ...
How does bra-ket notation work? - Quantum Computing Stack …
Mar 14, 2018 · Quantum algorithms frequently use bra-ket notation in their description. What do all of these brackets and vertical lines mean? For example: $|ψ =α|0 +β|1 $ While this is …
programming - Quantum Computing Stack Exchange
Feb 4, 2024 · Background In 2022 Qiskit released a very nice tutorial detailing how the expectation value of an operator could be found using CircuitOp. As of 2024, these techniques …