1,070 research outputs found
CFT adapted gauge invariant formulation of massive arbitrary spin fields in AdS
Using Poincare parametrization of AdS space, we study massive totally
symmetric arbitrary spin fields in AdS space of dimension greater than or equal
to four. CFT adapted gauge invariant formulation for such fields is developed.
Gauge symmetries are realized by using Stueckelberg formulation of massive
fields. We demonstrate that the mass parameter, curvature and radial coordinate
contributions to the gauge transformation and Lagrangian of the AdS massive
fields can be expressed in terms of ladder operators. Three representations for
the Lagrangian are discussed. Realization of the global AdS symmetries in the
conformal algebra basis is obtained. Modified de Donder gauge leading to simple
gauge fixed Lagrangian is found. The modified de Donder gauge leads to
decoupled equations of motion which can easily be solved in terms of the Bessel
function. New simple representation for gauge invariant Lagrangian of massive
(A)dS field in arbitrary coordinates is obtained. Light-cone gauge Lagrangian
of massive AdS field is also presented.Comment: 14 pages, LaTeX-2e. v3: Typo corrected in 2nd line below Eq.(4.34
Boundary States for GS superstrings in an Hpp wave background
We construct the boundary states preserving half the global supersymmetries
in string theory propagating on a Hpp background.Comment: 13 pages, latex2e with JHEP3.0 class, no figures. V1: clarified the
status of branes not sitting at the origin and added a constraint which
boundary states must satisf
Gauge invariant formulation of massive totally symmetric fermionic fields in (A)dS space
Massive arbitrary spin totally symmetric free fermionic fields propagating in
d-dimensional (Anti)-de Sitter space-time are investigated. Gauge invariant
action and the corresponding gauge transformations for such fields are
proposed. The results are formulated in terms of various mass parameters used
in the literature as well as the lowest eigenvalues of the energy operator. We
apply our results to a study of partial masslessness of fermionic fields in
(A)dS(d), and in the case of d=4 confirm the conjecture made in the earlier
literature.Comment: 14 pages, LaTeX -2e. v3: misprint in equation (2.24) corrected,
footnotes 1,2,8,10 and references added, notation for the cosmological
constant and operator of gauge transformation change
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