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For questions about mathematical problems arising from quantum mechanics, a branch of physics describing the behaviour of nature at very small scales, at the level of atoms and subatomic particles.

3 votes

Integrals of two Bessel functions of the first kind and a modified bessel function of the se...

The integral should be calculable by the Mellin-transform technique. See the calculation of the similar (but different) integral in http://www.opticsinfobase.org/josaa/abstract.cfm?uri=josaa-7-7-1218 …
Zurab Silagadze's user avatar
0 votes

Space with 720° / not 2$\pi$ rotational symmetry?

Not only spinors can be used to demonstrate that $360^\circ$ rotation is not an identity transformation. See http://www.maa.org/sites/default/files/pdf/upload_library/22/Hasse/00029890.di991816.99p060 …
Zurab Silagadze's user avatar
3 votes

Appropriate Recursion relations for Wigner 3j Symbols

Try these references http://scitation.aip.org/content/aip/journal/jmp/16/10/10.1063/1.522426?ver=pdfcov (Exact recursive evaluation of 3j‐ and 6j‐coefficients for quantum‐mechanical coupling of angula …
Zurab Silagadze's user avatar
3 votes

Quantum Mechanics derivation of Wallis' Formula?

Actually, to prove that $$\lim_{n\to\infty}\frac{n^2}{n+\frac{1}{2}}\left[\frac{\Gamma(n)}{\Gamma(n+\frac{1}{2})}\right]^2=1,$$ there is no need in the Bohr's correspondence principle. Stirling's Seri …
Zurab Silagadze's user avatar
1 vote
Accepted

Reference to complete derivation of Kossakowski–Lindblad equation and its steady solutions

It seems the following two articles http://arxiv.org/abs/1110.2122 (A simple derivation of the Lindblad equation, by Carlos Alexandre Brasil, Felipe Fernandes Fanchini, Reginaldo de Jesus Napolitano) …
Zurab Silagadze's user avatar
2 votes

Resource for learning quantum mechanics from the viewpoint of representation theory

Basic foundations of quantum mechanics in a representation theoretic language can be found in van den Ban's lectures "Applications of representation theory in classical quantum mechanics" at this page …
7 votes

Applications of Jordan algebras

Jordan algebras were originally introduced by Pascual Jordan in a hope to generalize the orthodox formulation of quantum mechanics, but this program was not successful as far as the generalization of …
Zurab Silagadze's user avatar
1 vote

Quantum Mechanics and bilinear optimal control theory

In addition to the literature indicated by Carlo Beenakker: in this 2015 review http://arxiv.org/abs/1508.00442 (Training Schrödinger's cat: quantum optimal control, by S.J. Glaser et al.) the authors …
Zurab Silagadze's user avatar
4 votes
Accepted

Closed form for 3j-symbol ratios

The following recursion relation $$ C(m_2+1,m_3-1)\begin{pmatrix}l_1 &l_2 &l_3\\m_1&m_2+1&m_3-1\end{pmatrix}+ D(m_2,m_3)\begin{pmatrix}l_1 &l_2 &l_3\\m_1&m_2&m_3\end{pmatrix}+$$ $$ C(m_2,m_3)\begin{p …
Zurab Silagadze's user avatar
1 vote
Accepted

Reference request: a guide through quantum probability

If you are interested in quantum probability from mathematical perspective, these two books will be helpful: http://www.springer.com/mathematics/probability/book/978-3-540-60270-5 (Quantum Probabilit …
Zurab Silagadze's user avatar