710 research outputs found
Conformal Symmetry in Matrix Model beyond the Eikonal Approximation
Recently, it was shown by Jevicki, Kazama and Yoneya (JKY) that the
Super-Yang-Mills theories (SYM) in can reproduce the conformal
symmetry of the near-horizon geometry of the D-brane solutions. However, the
eikonal approximation they used is not sufficient for analyzing the conformal
symmetry in SYM. We carry out the 1-loop calculation beyond the eikonal
approximation for D=1 SYM (i.e., Matrix model) to confirm the claim of JKY.Comment: 12 pages, LaTeX, no figures, minor correction
Collective Hamiltonians with Kac-Moody Algebraic Conditions
We describe the general framework for constructing collective--theory
Hamiltonians whose hermicity requirements imply a Kac--Moody algebra of
constraints on the associated Jacobian. We give explicit examples for the
algebras and . The reduction to --constraints, relevant
to -matrix models, is described for the Jacobians.Comment: Additional results and references; Phyzzte
Thermofield Duality for Higher Spin Rindler Gravity
We study the Thermo-field realization of the duality between the Rindler-AdS
higher spin theory and vector theory. The CFT represents a decoupled
pair of free vector field theories. It is shown how this decoupled
domain CFT is capable of generating the connected Rindler-AdS background with
the full set of Higher Spin fields.Comment: 23 pages, 1 figure; v2 reference added; v3 presentation modified and
typos correcte
Notes on Collective Field Theory of Matrix and Spin Calogero Models
Matrix models and related Spin-Calogero-Sutherland models are of major
relevance in a variety of subjects, ranging from condensed matter physics to
QCD and low dimensional string theory. They are characterized by integrability
and exact solvability. Their continuum, field theoretic representations are
likewise of definite interest. In this paper we describe various continuum,
field theoretic representations of these models based on bosonization and
collective field theory techniques. We compare various known representations
and describe some nontrivial applications.Comment: 36 pages, no figures v2: references added, a version to appear in the
special issue of JPhysA (edited by G Dunne, J Feinberg and P Dorey)
v3:comments changed, paper identical to v
Bulk from Bi-locals in Thermo Field CFT
We study the Large dynamics of the field theory in the Thermo
field dynamics approach. The question of recovering the high temperature phase
and the corresponding gauging is clarified. Through the associated
bi-local representation we discuss the emergent bulk space-time and
construction of (Higher spin) fields. We note the presence of `evanescent'
modes in this construction and also the mixing of spins at finite temperature.Comment: 24 page. v2: references added, minor corrections. v3: typo corrected,
clarification added, conclusion revised, version to appear in JHE
String field actions from W-infinity
Starting from as a fundamental symmetry and using the coadjoint
orbit method, we derive an action for one dimensional strings. It is shown that
on the simplest nontrivial orbit this gives the single scalar collective field
theory. On higher orbits one finds generalized KdV type field theories with
increasing number of components. Here the tachyon is coupled to higher tensor
fields.Comment: 18 page
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