241 citations · 1.7k across the 50 of their papers we have counts for
50 papers
Spin Multiplicities
Thomas Curtright, Thomas Van Kortryk, Cosmas Zachos
The number of times spin s appears in the Kronecker product of n spin j representations is computed, and the large n asymptotic behavior of the result is obtained. Applications are…
Elementary results for the fundamental representation of SU(3)
Thomas L. Curtright, Cosmas K. Zachos
A general group element for the fundamental representation of SU(3) is expressed as a second order polynomial in the hermitian generating matrix H, with coefficients consisting of…
A Compact Formula for Rotations as Spin Matrix Polynomials
Thomas L. Curtright, David B. Fairlie, Cosmas K. Zachos
Group elements of SU(2) are expressed in closed form as finite polynomials of the Lie algebra generators, for all definite spin representations of the rotation group. The simple ex…
Branched Hamiltonians and Supersymmetry
Thomas L Curtright, Cosmas K Zachos
Some examples of branched Hamiltonians are explored both classically and in the context of quantum mechanics, as recently advocated by Shapere and Wilczek. These are in fact cases…
Umbral Vade Mecum
Thomas L Curtright, Cosmas K Zachos
In recent years the umbral calculus has emerged from the shadows to provide an elegant correspondence framework that automatically gives systematic solutions of ubiquitous differen…
Ternary Plots for Neutrino Mixing Visualization
Cosmas K. Zachos
The visualization advantages of ternary plots are illustrated for the PMNS neutrino mixing matrix. Unitarity constraints are incorporated automatically, in part, since barycentric…