What is a quantum state? - Physics Stack Exchange
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 …
How is a quantum superposition different from a mixed state?
This is different than the pure state case. So the difference between a 'density matrix' type uncertainty and a 'quantum superposition' of a pure state lies in the ability of quantum amplitudes to interfere, …
quantum state - What's the physical significance of |0 and |1 ...
Sep 10, 2018 · The word 'state' makes sense in Quantum Mechanics. In classical computers, numbers are represented in binary as a series of 0s and 1s. It seems that the word 'state' extracted from QM …
hilbert space - Is there a difference between a quantum state and a ...
Nov 2, 2020 · $|\psi\rangle$ is the quantum state of a system and $\psi (x)$ is the quantum wave function. Quite simply, what is the difference?
What is the difference between a qubit and a quantum state?
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 …
quantum state - What is meant by the term "computational basis ...
Mar 28, 2018 · What is meant by the term "computational basis" in the context of quantum computing and quantum algorithms?
No two identical fermions can have the same quantum state at once?
Aug 9, 2015 · If by different you mean different spatial part of the wavefunction, then they can have the same "quantum state", if by this you mean the spin component of the wavefunction. What can't really …
What's the difference between a pure and mixed quantum state?
As per my limited understanding, a pure state is the quantum state where we have exact information about the quantum system. And the mixed state is the combination of probabilities of the information
particle physics - Has it been practically proven that quantum ...
Sep 29, 2020 · I was wondering if quantum particles do actually exists in two different states simultaneously and if it has been proven they do indeed exists in a superposition of states. How has …
What is quantum gate teleportation?
Apr 17, 2018 · Quantum state teleportation is the quantum information protocol where a qubit is transferred between two parties using an initial shared entangled state, Bell measurement, classical …