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quant-ph2021
Quadrilaterals on the square screen of their diagonals: Regge symmetries of quantum-mechanical spin-networks and Grashof classical mechanisms of four-bar linkages
Vincenzo Aquilanti, Ana Carla Peixoto Bitencourt, Concetta Caglioti +4
The four-bar linkage is a basic arrangement of mechanical engineering and represents the simplest movable system formed by a closed sequence of bar-shaped bodies. Although the mech…
quant-ph2012
Exact and asymptotic computations of elementary spin networks: classification of the quantum-classical boundaries
A. C. P. Bitencourt, A. Marzuoli, M. Ragni +2
Increasing interest is being dedicated in the last few years to the issues of exact computations and asymptotics of spin networks. The large-entries regimes (semiclassical limits)…