Is there a way to explain quantum mechanics without invoking complex numbers?
8539
About the complex nature of the wave function?
11602
Validity of naively computing the de Broglie wavelength of a macroscopic object
46144
Understanding imaginary exponents
124703
Where does the $i$ come from in the Schrödinger equation?
141507
Number of different possible values for the total angular momentum quantum number, $j$?
154411
How can I intuitively understand complex exponents?
22277
Is it possible to reconstruct the Hamiltonian from knowledge of its ground state wave function?
26417
Why do we use Hermitian operators in QM?
136184
Why we dont have "direct" velocity operator just as $p$? ( as use $p$ space not $v$? ) in quantum mechanics?
107450
False proof that $ρe^{iθ} = ρ$ and so complex numbers do not exist?
119993
If quantum speed-up is due to the wave-like nature of quantum mechanics, why not just use regular waves?
127799
Eigenvalues of symmetric matrices are real without (!) complex numbers
110888
Quantum states as rays as opposed to vectors
19010
Why quantum mechanics?
41470
Is the density operator a mathematical convenience or a 'fundamental' aspect of quantum mechanics?
55231
Is there a simple way of finding the eigenstates of the creation and annihilation operator in QM?
88887
Using the properties of real numbers, verify commutativity on complex numbers.