17 research outputs found
Weaving Worldsheet Supermultiplets from the Worldlines Within
Using the fact that every worldsheet is ruled by two (light-cone) copies of
worldlines, the recent classification of off-shell supermultiplets of
N-extended worldline supersymmetry is extended to construct standard off-shell
and also unidextrous (on the half-shell) supermultiplets of worldsheet
(p,q)-supersymmetry with no central extension. In the process, a new class of
error-correcting (even-split doubly-even linear block) codes is introduced and
classified for , providing a graphical method for classification of
such codes and supermultiplets. This also classifies quotients by such codes,
of which many are not tensor products of worldline factors. Also,
supermultiplets that admit a complex structure are found to be depictable by
graphs that have a hallmark twisted reflection symmetry.Comment: Extended version, with added discussion of complex and quaternionic
tensor products demonstrating that certain quotient supermultiplets do not
factorize over any ground fiel
A Fermionic Hodge Star Operator
A fermionic analogue of the Hodge star operation is shown to have an explicit
operator representation in models with fermions, in spacetimes of any
dimension. This operator realizes a conjugation (pairing) not used explicitly
in field-theory, and induces a metric in the space of wave-function(al)s just
as in exterior calculus. If made real (Hermitian), this induced metric turns
out to be identical to the standard one constructed using Hermitian
conjugation; the utility of the induced complex bilinear form remains unclear.Comment: 11 pages, plain TeX + harvma
Golden Ratio Controlled Chaos in Supersymmetric Dynamics
We construct supersymmetric Lagrangians for the recently constructed
off-shell worldline N=3 supermultiplet for I=1,2,3, where
and are standard, Salam-Strathdee superfields: fermionic and
bosonic. Already the Lagrangian bilinear in component fields exhibits a total
of thirteen free parameters, seven of which specify Zeeman-like coupling to
external (magnetic) fluxes. All but special subsets of this parameter space
describe aperiodic oscillatory response, some of which are controlled by the
"golden ratio," . We also show that all of these
Lagrangians admit an supersymmetry extension, while a subset admits
two inequivalent such extensions
Spacetime Variable Superstring Vacua
In a general superstring vacuum configuration, the `internal' space (sector)
varies in spacetime. When this variation is non-trivial only in two space-like
dimensions, the vacuum contains static cosmic strings with finite energy per
unit length and which is, up to interactions with matter, an easily computed
topological invariant. The total spacetime is smooth although the `internal'
space is singular at the center of each cosmic string. In a similar analysis of
the Wick-rotated Euclidean model, these cosmic strings acquire expected
self-interactions. Also, a possibility emerges to define a global time in order
to rotate back to the Lorentzian case.Comment: 24 pages, harvmac, HUPAPP-93/