- Type of paper
: Paper in journal
Title: Compatibility of (p,q) induced supergravity and its
representation in terms of (0,1) or (1,0) superfields in light-cone gauge
- Authors:
- Smailagić, Anais (109433)
Journal: Classical & Quantum Gravity
Number: 58
Volume: 9
Year: 1992
Pages: from 587 to 594
Number of references: 9
Language: engleski
Summary: Projection of a higher superspace to a lower one is
discussed inconnection with a light-cone gauge for induced
supergravitymodels. Projection of (p,q) q#0 models is compatible with
(0,1)supergravity model whose SL(2,R) current structure is describedand
renormalization of Kac-Moody charge is calculated.
- Type of paper
: Paper in journal
Title: Membrane pregeometry and the vanishing of the cosmological
constant
- Authors:
- Smailagić, Anais (109433)
- Spallucci, Euro
Journal: Classical & Quantum Gravity
Volume: 9
Year: 1992
Pages: from 1883 to 1890
Number of references: 16
Language: engleski
Summary: We suggest a model of induced gravity in which the
fundamentalobject is a relativistic membrane minimally coupled to
abackground metric and to an external three-index potential.Low-energy
limit is computed for the two-loop effective action asa power expansion in
the surface tension. We find that thelarge-distance behaviour of the
classical fields is described bythe Einstein action with a cosmological
term plus a Maxwell-typeaction for the gauge potential. The Maxwell term
enables to applythe Hawking-Baum argument to show that the physical
cosmologicalconstant is "probably" zero.
- Type of paper
: Paper in journal
Title: Lorentz anomaly in (1,0) supergravity
Pages: from 0 to 0
Language: engleski
Summary: We discuss interplay among supercoordinate, Weyl and
Lorentzanomalies both in chiral and non-chiral supergravity representedby
(1,0) and (1,1) two-dimensional models. We discuss in fullgenerality the
regularization ambiquities of the inducedeffective action and recover
corresponding general form ofanomalous Ward indentities. Finally, we
explain the differencebetween chiral and non-chiral supergravity models in
terms of theparameters and establish the relation between these two models
byprojecting (1,1) into (1,0) supersymmetry.
- Type of paper
: Paper in journal
Title: Gravitational and Schwinger model anomalies. How far can
the analogy go?
- Authors:
- Spallucci, Euro
- Smailagić, Anais (109433)
Journal: Physics Letters B
Volume: 284
Year: 1992
Pages: from 17 to 22
Number of references: 12
Language: engleski
Summary: The most general treatment of all the anomalies for chiral
andmassless fermions is described. It is shown that for that purposetwo
regularization parameters are present in the effectiveaction. An analogy to
the Schwinger model is desplayedcorresponding to the specific choice of one
of the parameters. Ingeneral, it is shown that the gravitational model
containsanomaly relations having no analogy in the Schwinger model.
- Type of paper
: Paper in journal
Title: General treatment of anomalies in (1,0) and (1,1)
two-dimensional supergravity
- Authors:
- Smailagić, Anais (109433)
- Spallucci, Euro
Journal: Classical & Quantum Gravity
Volume: 10
Year: 1993
Pages: from 451 to 460
Number of references: 18
Language: engleski
Summary: We discuss interplay among supercoordinate, Weyl and
Lorentzanomalies both in chiral and non-chiral supergravity representedby
(1,0) and (1,1) two-dimensional models. We discuss in fullgenerality the
regularization ambiquities of the inducedeffective action and recover
corresponding general form ofanomalous Ward indentities. Finally, we
explain the differencebetween chiral and non-chiral supergravity models in
terms of theparameters and establish the relation between these two models
byprojecting (1,1) into (1,0) supersymmetry.
- Type of paper
: Paper in journal
Title: Gauge theory of the string geodesic field
- Authors:
- Smailagić, Anais (109433)
- Aurilia, Antonio
- Spallucci, Euro
Journal: Physical Review D
Number: 6
Volume: 47
Year: 1993
Pages: from 2536 to 2548
Number of references: 27
Language: engleski
Summary: A relativistic string is usually represented by the
Nambu-Gotoaction in terms of the external area of two-dimensional
timlikesubmainfold of Minkowski space. Alternatively, a family ofclassical
solutions of the string can be globally described interms of the associated
geodesic field. We propose a new gaugetheory for the geodwsic field. It
solves the technical andconceptual problems affecting previous attempts to
describestrings in terms of local field variables. The connection
betweenthe geodesic field, the string current and the Kalb-Ramond
gaugepotential is clarified. A non-Abelian generalization of the modelis
discussed.
- Type of paper
: Paper in journal
Title: Kac-Moody structure of chiral gravity in the light-cone
gauge
- Authors:
- Smailagić, Anais (109433)
- Spallucci, Euro
Journal: Physics Letters B
Volume: 317
Year: 93
Pages: from 526 to 532
Number of references: 20
Language: engleski
Summary: We study residual symmetry SL(2,R)xU(1) of the chiral
gravity inthe light-cone gauge. Quantum gravitational effects
renormalizethe SL(2,R) Kac-Moody central charge and induce, through
theLorentz anomaly, and arbitrary parameter. Due to the presence ofthis
free parameter the Kac-Moody centra charge has no forbiddenrange of values
and the strong gravity regime is opened forinvestigation.
- Type of paper
: Paper in journal
Title: Conformal p-branes as a source of structure in space-time
- Authors:
- Smailagić, Anais (109433)
- Aurilia, Antonio
- Spallucci, Euro
Journal: Physical Review D
Volume: 51
Year: 1995
Pages: from 4410 to 4414
Language: engleski
Summary: We discuss a model of a conformal p-brane interacting with
the world volume metric and connection. The purpose of the model is to
suggest a mechanism by which gravity coupled to p-branes leads to the
formation of structure rather than homogenity in spacetime. The above
results apply to a broad class of nonlinear gravitational Lagragians as
long as metric and connection of the p-brane manifold are treated as
independent variables
Keywords: model of conformal p-branes
- Type of paper
: Paper in journal
Title: Consistent two-dimensional gravity
- Authors:
- Smailagić, Anais (109433)
- Spallucci, Euro
Journal: International Journal of Modern Physics
Year: 1995
Language: engleski
Summary: We study induced gravity in light-cone gauge. Generalized
analysis of critical exponents is given and their relation to the SL(2,R)
vacuum states elucidated. All the parameters containing information about
the theory can be traced back to the characteristics of the grup of the
residual symmetry in the light-cone gauge.
Keywords: induced gravity in light-cone gauge, SL(2,R) vacuum states, residual symmetry in light-cone gauge
- Type of paper
: Invited lecture
Title: Connection of conformal and light-cone gauge results in
two-dimensional chiral gravity
Year: 1994
- Type of paper
: Other
Title: Lorentz anomaly in (1,0) supergravity
- Authors:
- Smailagić, Anais (109433)
- Spallucci, Euro
Type of work: Interna publikacija Sveučilišta u Trstu EFI-UTS-DFT-92-79
Language: engleski
Summary: We discuss interplay among supercoordinate, Weyl and
Lorentzanomalies both in chiral and non-chiral supergravity representedby
(1,0) and (1,1) two-dimensional models. We discuss in fullgenerality the
regularization ambiquities of the inducedeffective action and recover
corresponding general form ofanomalous Ward indentities. Finally, we
explain the differencebetween chiral and non-chiral supergravity models in
terms of theparameters and establish the relation between these two models
byprojecting (1,1) into (1,0) supersymmetry
- Type of paper
: Other
Title: Connection of conformal and light-cone gauge in
two-dimensional chiral gravity
- Authors:
- Smailagić, Anais (109433)
- Spallucci, Euro
Type of work: Interna publikacija Sveučilišta u Trstu UTS-DFT-3-94
Language: engleski
Summary: We study chiral induced gravity in the light-cone gauge and
show the absence of the region of complex values of the renormalized
Kac-Moody central charge. In that respect the Lorentz degree of freedom,
and associated arbitrary parameter, play cruical role.
Keywords: induced chiral theory of gravity in the light-cone gauge, renormalized Kac-Moody central charge
