Feynman integrals can be associated with geometric objects, and Driesse and colleagues’ work uncovers links between general relativity and geometry. Many Feynman-loop integrals are functions ...

Investing.com-- Bitcoin’s price fell slightly on Thursday, but remained around three-month highs as speculation over a second Trump presidency, friendlier regulation and improved capital inflows ...

The topics covered are Feynman diagram rules, microscopic mean-field theories (Hartree-Fock and Kohn-Sham theories, natural orbitals), many-body perturbation theory, large-scale diagonalization ...

Multi-photon excitation states of poly-atomic molecules undergoing a self-interaction via Kerr effect related processes are of great interest today. Their successful study must be both analytical and ...