Aug 31, 2021 · I've read wiki definition and also some other questions here on StackExchange, but I still can't quite catch what is a quantum state, what are properties of said state. I also was looking for …

Mar 10, 2017 · A quantum state is an element of a projectivized complex Hilbert space. A quantum object has (at any given moment) one state, and that state is a complete description of the object. In …

Apr 23, 2018 · In general, a qubit is mathematically represented as a quantum state of the form $\lvert \psi\rangle = \alpha \lvert 0\rangle + \beta \lvert 1\rangle$, using the basis $\ { \lvert 0\rangle, \lvert …

Oct 13, 2021 · 1 Since I am just starting out in quantum physics, posing meaningful questions is still hard for me, so please keep that in mind. First of all, are the dimensions in a quantum system the …

Mar 28, 2018 · What is meant by the term "computational basis" in the context of quantum computing and quantum algorithms?

Feb 5, 2025 · 4 Let me state my background: I am familiar with the usual formalism of QM, of how measurements are modeled, measurement problem, decoherence, etc. In thinking about the process …

Oct 20, 2023 · I would like to initialize a 6-qubit QuantumCircuit, such that registers 0, 1, 3, 4 are initialized in state, something like this: qc = QuantumCircuit(6) qc.initialize(state, [0, 1, 3, 4]) Now, the …

Jul 16, 2024 · A qubit is described by the elements of a vector space, right? Out of all those vectors why do we select 2 vectors and call them the computational or standard basis? Is the choice of these …

The article in Wikipedia about quantum state suggests that the quantum state of a system is indeed its state vector which contains statistical information about it. But what are those statistical information? …

Jul 24, 2023 · I understand that the inner product describes the overlap of the two quantum state, but what exactly does this mean? If we set up a quantum-mechanical experiment, what does the overlap …