2,638 research outputs found
Two-phonon -vibrational states in rotating triaxial odd- nuclei
Distribution of the two phonon vibrational collectivity in the
rotating triaxial odd- nucleus, Nb, that is one of the three
nuclides for which experimental data were reported recently, is calculated in
the framework of the particle vibration coupling model based on the cranked
shell model plus random phase approximation. This framework was previously
utilized for analyses of the zero and one phonon bands in other mass region and
is applied to the two phonon band for the first time. In the present
calculation, three sequences of two phonon bands share collectivity almost
equally at finite rotation whereas the state is the purest at zero
rotation.Comment: 15 pages, 3 figures, accepted for publication in Physical Review
Wedge locality and asymptotic commutativity
In this paper, we study twist deformed quantum field theories obtained by
combining the Wightman axiomatic approach with the idea of spacetime
noncommutativity. We prove that the deformed fields with deformation parameters
of opposite sign satisfy the condition of mutual asymptotic commutativity,
which was used earlier in nonlocal quantum field theory as a substitute for
relative locality. We also present an improved proof of the wedge localization
property discovered for the deformed fields by Grosse and Lechner, and we show
that the deformation leaves the asymptotic behavior of the vacuum expectation
values in spacelike directions substantially unchanged.Comment: LaTeX, 23 pages; typos corrected, an explanatory example added,
matches the published versio
Interacting Wess-Zumino-Novikov-Witten Models
We study the system of two WZNW models coupled to each other via the
current-current interaction. The system is proven to possess the strong/weak
coupling duality symmetry. The strong coupling phase of this theory is
discussed in detail. It is shown that in this phase the interacting WZNW models
approach non-trivial conformal points along the renormalization group flow. The
relation between the principal chiral model and interacting WZNW models is
investigated.Comment: 26 pages, LaTex fil
Some Comments on Lie-Poisson Structure of Conformal Non-Abelian Thirring Models
The interconnection between self-duality, conformal invariance and
Lie-Poisson structure of the two dimensional non-abelian Thirring model is
investigated in the framework of the hamiltonian method.Comment: QMW-93-16, 10 p
- …