2,322 research outputs found
Quantum Group SU_{q}(2) and Pairing in Nuclei
A scheme for treating the pairing of nucleons in terms of generators of
Quantum Group SU_{q}(2) is presented. The possible applications to nucleon
pairs in a single orbit, multishell case, pairing vibrations and
superconducting nuclei are discussed. The formalism for performing BCS
calculations with q-deformed nucleon pairs is constructed and the role played
by deformation parameter q analyzed in the context of nucleons in a single
orbit and for Sn Isotopes.Comment: 6 Pages, No figures, To be published in Proceedings of International
Conference "Geometrical Aspects of Quantum Fields", Londrina PR, April 2000,
World Scientifi
Genuine Four Tangle for Four Qubit States
We report a four qubit polynomial invariant that quantifies genuine four-body
correlations. The four qubit invariants are obtained from transformation
properties of three qubit invariants under a local unitary on the fourth qubit.Comment: 03 pages, This short communication is a contribution to the
proceedings of QCMC 2012 held in Vienna, Austria, July 30th to August 3rd
201
Reply on `comment on our paper `Single two-level ion in an anharmonic-oscillator trap: Time evolution of the Q function and population inversion ''
We show here that the model Hamiltonian used in our paper for ion vibrating
in a q-analog harmonic oscillator trap and interacting with a classical
single-mode light field is indeed obtained by replacing the usual bosonic
creation and annihilation operators of the harmonic trap model by their
q-deformed counterparts. The approximations made in our paper amount to using
for the ion-laser interaction in a q-analog harmonic oscillator trap, the
operator F_{q}=exp{-(|\epsilon|^2}/2)}exp{i\epsilon A^{\dagger}}exp{i\epsilon
A}, which is analogous to the corresponding operator for ion in a harmonic
oscillator trap that is . In our article we do not claim to have diagonalized the
operator, , for which the basis states
|g,m> and |e,m> are not analytic vectors.Comment: Revtex, 4pages. To be Published in Physical Review A59, NO.4(April
99
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