14 citations · 51 across the 11 of their papers we have counts for
4 papers · 2 filters
Entanglement structure of adjoint representation of unitary group and tomography of quantum states
V. I. Man'ko, G. Marmo, E. C. G. Sudarshan +1
The density matrix of composite spin system is discussed in relation to the adjoint representation of unitary group U(n). The entanglement structure is introduced as an additional…
Manifold of density matrices
Aik-meng Kuah, E. C. G. Sudarshan
We show that the manifold of density matrices can be derived from CP^{N^2-1} by the action of SU(N). We give some preliminary observations on the structure of this manifold.
Non-relativistic proofs of the spin-statistics connection
Anil Shaji, E. C. G. Sudarshan
A recent paper by Peshkin [1] has drawn attention again to the problem of understanding the spin statistics connection in non-relativistic quantum mechanics. Allen and Mondragon [2…
Some Applications for an Euler Angle Parameterization of SU(N) and U(N)
Todd Tilma, E. C. G. Sudarshan
Here we apply our SU(N) and U(N) parameterizations to the question of entanglement in the two qubit and qubit/qutrit system. In particular, the group operations which entangle a tw…