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hep-th1998★ 1 cited

Near-Horizon Supergravity Superspace

Piet Claus

We present a construction of the superspace of maximally supersymmetric adS_{p+2} x S^{d-p-2} near-horizon geometry based entirely on the supergravity constraints of which the boso…

hep-th1998★ 10 cited

Dilaton transformation under abelian and non-abelian T-duality in the path integral approach

J. De Jaegher, J. Raeymaekers, A. Sevrin +1

We present a convenient method for deriving the transformation of the dilaton under T-duality in the path-integral approach. Subtleties arising in performing the integral over the…

hep-th1998

Ramond-Ramond (boundary) states

M. Billo, R. Russo

The description of D-branes as boundary states for type II string theories (in the covariant formulation) requires particular care in the R-R sector. Also the vertices for R-R pote…

nucl-ex1998★ 183 cited

Decay of neutron-rich Mn nuclides and deformation of heavy Fe isotopes

M. Hannawald, T. Kautzsch, A. Woehr +12

The use of chemically selective laser ionization combined with beta-delayed neutron counting at CERN/ISOLDE has permitted identification and half-life measurements for 623-ms Mn-61…

math-ph1998★ 481 cited

The Fluctuation Theorem as a Gibbs Property

Christian Maes

Common ground to recent studies exploiting relations between dynamical systems and non-equilibrium statistical mechanics is, so we argue, the standard Gibbs formalism applied on th…

hep-th1998★ 46 cited

Superisometries of the adS*S Superspace

Piet Claus, Renata Kallosh

We find the superisometry of the near-horizon superspace, forming the superconformal algebra. We present here the explicit form of the transformation of the bosonic and fermionic c…

hep-th1998★ 51 cited

(Non-)Anomalous D-brane and O-plane couplings: the normal bundle

Ben Craps, Frederik Roose

The direct string computation of anomalous D-brane and orientifold plane couplings is extended to include the curvature of the normal bundle. The normalization of these terms is fi…

hep-th1998★ 1 cited

Symmetries of the Boundary of AdS_5 x S^5 and Harmonic Superspace

Piet Claus, Renata Kallosh, J. Rahmfeld

We study the boundary limit of the bulk isometries of AdS x S. The superconformal symmetry is realized on the coordinates of the AdS boundary, the fermionic superspace coordinates,…

hep-th1998★ 30 cited

Attractors at weak gravity

Frederik Denef

We study the attractor mechanism in low energy effective D=4, N=2 Yang-Mills theory weakly coupled to gravity, obtained from the effective action of type IIB string theory compacti…

quant-ph1998★ 1 cited

Multi-time correlations in relaxing quantum dynamical systems

J. Andries, F. Benatti, M. De Cock +1

In this paper, we consider the long time asymptotics of multi-time correlation functions for quantum dynamical systems that are sufficiently random to relax to a ``reference state'…

math.OA1998★ 2 cited

A Radon-Nikodym theorem for von Neumann algebras

Stefaan Vaes

In this paper we present a generalization of the Radon-Nikodym theorem proved by Pedersen and Takesaki. Given a normal, semifinite and faithful (n.s.f.) weight on a von Neumann…

cond-mat.dis-nn1998

A replica approach to the state-dependent synapses neural network

D. Bollé, G. M. Shim, B. Van Mol

The replica method is applied to a neural network model with state-dependent synapses built from those patterns having a correlation with the state of the system greater than a cer…

cond-mat.supr-con1998

Flux Confinement in Mesoscopic Superconductors

Y. Bruynseraede, V. V. Moshchalkov

We report on flux confinement effects in superconducting submicron line, loop and dot structures. The main idea of our study was to vary the boundary conditions for confinement of…

cond-mat.dis-nn1998★ 7 cited

Parallel dynamics of extremely diluted symmetric Q-Ising neural networks

D. Bolle, G. Jongen, G. M. Shim

The parallel dynamics of extremely diluted symmetric Q-Ising neural networks is studied for arbitrary Q using a probabilistic approach. In spite of the extremely diluted architectu…

math.PR1998★ 37 cited

The restriction of the Ising model to a layer

C. Maes, F. Redig, A. Van Moffaert

We discuss the status of recent Gibbsian descriptions of the restriction (projection) of the Ising phases to a layer. We concentrate on the projection of the two-dimensional low te…

hep-th1998★ 51 cited

Super M-brane actions in adS_4 x S^7 and adS_7 x S^4

Piet Claus

The world-volume action of the M2 brane and the M5-brane in an adS_4 x S^7 and a adS_7 x S^4 background is derived to all orders in anticommuting superspace coordinates. Contrary t…

hep-th1998★ 10 cited

Branes and Theta Dependence

Yaron Oz, Andrea Pasquinucci

We use the fivebrane of M theory to study the dependence of four dimensional super Yang-Mills and super QCD softly broken by a gaugino mass. We compute the energy of…

hep-ph1998★ 2 cited

Symmetry Tests within the Standard Model and Beyond from Nuclear Muon Capture

Jan Govaerts

Precision measurements in nuclear muon capture on the proton and He allow for tests of the Standard Model for the strong and electroweak interactions, complementary to those ac…

astro-ph1998★ 16 cited

Interferometry and spectroscopy of Beta Cen: a Beta Cephei star in a binary system

J. G. Robertson, T. R. Bedding, C. Aerts +3

Beta Cen is a bright Beta Cephei variable and has long been suspected to be a binary. Here we report interferometric observations with the 3.9-m Anglo-Australian Telescope at a sin…

hep-th1998★ 16 cited

Matrix string states in pure 2d Yang Mills theories

M. Billo', M. Caselle, A. D'Adda +1

We quantize pure 2d Yang-Mills theory on a torus in the gauge where the field strength is diagonal. Because of the topological obstructions to a global smooth diagonalization, we f…

hep-th1998★ 75 cited

Anomalous D-brane and orientifold couplings from the boundary state

Ben Craps, Frederik Roose

We compute scattering amplitudes involving both R-R and NS-NS fields in the presence of a D-brane or orientifold plane. These provide direct evidence for the anomalous couplings in…

hep-th1998

The rigid limit in Special Kähler geometry for SU(2) SYM with a massive quark hypermultiplet

Chris Van Den Broeck

We study the rigid limit of type IIB string theory, compactified on a K3 fibration, which, near its conifold limit, contains the Seiberg-Witten curve for N=2 SU(2) Super-Yang-Mills…

cond-mat.dis-nn1998★ 11 cited

The XY Spin-Glass with Slow Dynamic Couplings

G. Jongen, D. Bolle, A. C. C. Coolen

We investigate an XY spin-glass model in which both spins and couplings evolve in time: the spins change rapidly according to Glauber-type rules, whereas the couplings evolve slowl…

hep-th1998★ 325 cited

The domain-wall/QFT correspondence

H. J. Boonstra, K. Skenderis, P. K. Townsend

We extend the correspondence between adS-supergravities and superconformal field theories on the adS boundary to a correspondence between gauged supergravities (typically with non-…