14 citations · 55 across the 18 of their papers we have counts for
3 papers · 2 filters
f-oscillators deformation for Moyal algebras
V. I. Man'ko, G. Marmo, E. C. G. Sudarshan +1
Using general construction of star-product the q-deformed Wigner-Weyl-Moyal quantization procedure is elaborated. The q-deformed Groenewold kernel determining the product of quantu…
A hazard of open quantum dynamics: Markov approximations encounter map domains
Thomas F. Jordan, Anil Shaji, E. C. G. Sudarshan
A Markov approximation in open quantum dynamics can give unphysical results when a map acts on a state that is not in its domain. This is examined here in a simple example, an open…
The geometry of density states, positive maps and tomograms
V. I. Man'ko, G. Marmo, E. C. G. Sudarshan +1
The positive and not completely positive maps of density matrices, which are contractive maps, are discussed as elements of a semigroup. A new kind of positive map (the purificatio…