Magnitudes and phases of coefficients of a qubit
32489
How does bra-ket notation work?
54294
Can the product $AB$ be computed using only $+, -,$ and reciprocal operators?
78075
Why can I apply $HS^\dagger$ and then measure in the computational basis to measure $Y$?
133962
How to find a density matrix of a qubit?
56243
Representation under which Pauli matrices transform
46450
Physical meaning of quantum operators
105194
Quantum properties of objects with zero velocity
55691
Are states of a quantum system represented by vectors in a Hilbert space?
75803
Why does the space of pure qudit states have dimension $2(D-1)$, rather than $D^2-2$?
107645
How to explain in layman’s terms the significance of the difference of qubits of the D-Wave and IBM QX?
47845
Mirror algorithm for computing $\pi$ and $e$ - does it hint on some connection between them?
3513
Is there conservation of information during quantum measurement?
96
How to interpret a quantum circuit as a matrix?
80573
Nature of the quantum degeneracy pressure
15231
Invariance of a maximally entangled state under unitary operation $U \otimes U^\dagger$
90247
How to construct matrix of regular and "flipped" 2-qubit CNOT?
113275
How to find the reduced density matrix of a four-qubit system?