41 research outputs found
On the Picard-Fuchs Equations of N=2 Supersymmetric E_6 Yang-Mills Theory
We obtain the Picard-Fuchs equations of N=2 supersymmetric Yang-Mills theory
with the exceptional gauge group E_6. Such equations are based on E_6 spectral
curve.Comment: Latex, 5 pages, few misprints are corrected, conclusion is adde
Diamond-Like Carbon film from Liquid Gas on Metallic Substrates
Liquid gas was used to produce DLC films on Cu, Al and steel substrates by DC
plasma technique. The absorption in IR reflectance indicates, grown films are
DLC. By deconvolution of room temperature UV-visible spectra of the films grown
at 50 mtorr and 200C, in addition to the spectra lines reported for
CL, PL, PLC and ESR, some new spectra lines were obtained. We also, have seen
exciton absorption line at room temperature.Comment: 6 pages, Postscript, 2 figure
Free Field Representation of and and N=1 (q-)Superstring Correlation Functions
The free field realization of irreducible representations of \os is
constructed, by a unified and systematic scheme. The -analog of this unified
scheme is used to construct -free field realization of irreducible
representations of \uos. By using these realization, the two point function
of superconformal (q-superconformal) model based on \os (\uos)
symmetry have been calculated.Comment: 10 pages, LaTex, no figures, New section has been added; to be
published in Phys. Lett.
Logarithmic Operators in Conformal Field Theory and The \W_\infty-algebra
It is shown explicitly that the correlation functions of Conformal Field
Theories (CFT) with the logarithmic operators are invariant under the
differential realization of Borel subalgebra of \W_\infty-algebra. This
algebra is constructed by tensor-operator algebra of differential
representation of ordinary . This method allows us to write
differential equations which can be used to find general expression for three
and four-point correlation functions possessing logarithmic operators. The
operator product expansion (OPE) coefficients of general logarithmic CFT are
given up to third level.Comment: 19 pages, LaTex, no figures, Version to appear in Int. J. Mod. Phys.
A 12 (1997
A Logarithmic Conformal Field Theory Solution For Two Dimensional Magnetohydrodynamics In Presence of The Alf'ven Effect
When Alf`ven effect is peresent in magnetohydrodynamics one is naturally lead
to consider conformal field theories, which have logarithmic terms in their
correlation functions. We discuss the implications of such logarithmic terms
and find a unique conformal field theory with centeral charge
, within the border of the minimal series, which satisfies
all the constraints. The energy espectrum is found to be \newline .Comment: Latex, 9 page
On osp(2|2) conformal field theories
We study the conformal field theories corresponding to current superalgebras
and . We construct the free field
realizations, screen currents and primary fields of these current superalgebras
at general level . All the results for are new, and the
results for the primary fields of also seem to be new. Our
results are expected to be useful in the supersymmetric approach to Gaussian
disordered systems such as random bond Ising model and Dirac model.Comment: LaTex file 20 pages; Title changed and modifications mad