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quant-ph2005

Equivalence of Tripartite Quantum States under Local Unitary Transformations

Sergio Albeverio, Laura Cattaneo, Shao-Ming Fei +1

The equivalence of tripartite pure states under local unitary transformations is investigated. The nonlocal properties for a class of tripartite quantum states in $\Cb^K \otimes \C…

astro-ph2005★ 2 cited

Ultra High Energy Cosmic Rays from Sequestered X Bursts

Peter L. Biermann, Paul H. Frampton

Assuming that there is no GZK (Greisen-Zatsepin-Kuzmin) cut-off and that super-GZK cosmic rays correlate with AGN (Active Galactic Nuclei) at cosmological distances, it is speculat…

astro-ph2005★ 176 cited

Molecular gas in the Andromeda galaxy

Ch. Nieten, N. Neininger, M. Guelin +5

We present a new 12CO(J=1-0)-line survey of the Andromeda galaxy, M31, covering the bright disk with the highest resolution to date (85 pc along the major axis), observed On-the-Fl…

hep-th2005★ 15 cited

The Higgs Mechanism in Heterotic Orbifolds

Stefan Forste, Hans Peter Nilles, Akin Wingerter

We study spontaneous gauge symmetry breaking in the framework of orbifold compactifcations of heterotic string theory. In particular we investigate the electroweak symmetry breakdo…

hep-ph2005★ 28 cited

Comment on "Surprises in threshold antikaon-nucleon physics"

B. Borasoy, R. Nissler, W. Weise

It has recently been claimed by Oller et al. [PRL 95 (2005) 172502] that the DEAR kaonic hydrogen data can be reconciled with K^- p scattering data in a chiral unitary approach. In…

math.PR2005

N/V-limit for Stochastic Dynamics in Continuous Particle Systems

Martin Grothaus, Yuri G. Kondratiev, Michael Röckner

We provide an -limit for the infinite particle, infinite volume stochastic dynamics associated with Gibbs states in continuous particle systems on , . St…

astro-ph2005★ 119 cited

Spectroscopic metallicities for Fornax UCDs, GCs and dE,Ns

S. Mieske, M. Hilker, L. Infante +1

Various formation channels for the puzzling ultra-compact dwarf galaxies (UCDs) have been proposed in the last few years. To better judge on some of the competing scenarios, we pre…

nucl-th2005

Helicity amplitudes and electromagnetic decays of strange baryon resonances

Tim Van Cauteren, Jan Ryckebusch, Bernard C. Metsch +1

We present results for the helicity amplitudes of the lowest-lying hyperon resonances Y*, computed within the framework of the Bonn constituent-quark model, which is based on the B…

q-bio.NC2005

Egocentric Path Integration Models and their Application to Desert Arthropods

Tobias Merkle, Martin Rost, Wolfgang Alt

Path integration enables desert arthropods to find back to their nest on the shortest track from any position. To perform path integration successfully, speeds and turning angles a…

nucl-th2005★ 32 cited

Aspects of phi-meson production in proton-proton collisions

A. Sibirtsev, J. Haidenbauer, U. -G. Meißner

We analyze near-threshold cross section data for the reaction pp->pp phi published by the DISTO collaboration and recent, still preliminary results presented by the ANKE Collaborat…

nucl-th2005★ 44 cited

Isospin-breaking corrections in the pion-deuteron scattering length

Ulf-G. Meißner, Udit Raha, Akaki Rusetsky

It is shown that isospin-breaking corrections to the pion-deuteron scattering length can be very large, because of the vanishing of the isospin-symmetric contribution to this scatt…

hep-ph2005★ 233 cited

Supersymmetry Parameter Analysis: SPA Convention and Project

J. A. Aguilar-Saavedra, A. Ali, B. C. Allanach +122

High-precision analyses of supersymmetry parameters aim at reconstructing the fundamental supersymmetric theory and its breaking mechanism. A well defined theoretical framework is…

physics.atm-clus2005★ 4 cited

Scattering length for helium atom-diatom collision

Elena A. Kolganova, Alexander K. Motovilov, Werner Sandhas

We present results on the scattering lengths of ^4He--^4He_2 and ^3He--^4He_2 collisions. We also study the consequence of varying the coupling constant of the atom-atom interactio…

astro-ph2005★ 146 cited

The ecology of star clusters and intermediate mass black holes in the Galactic bulge

Simon Portegies Zwart, Holger Baumgardt, Stephen L. W. McMillan +3

We simulate the inner 100pc of the Milky-Way Galaxy to study the formation and evolution of the population of star clusters and intermediate mass black holes. For this study we per…

math.AG2005★ 6 cited

Complex multiplication, rationality and mirror symmetry for abelian varieties

Meng Chen

We show that complex multiplication on abelian varieties is equivalent to the existence of a constant rational Kähler metric. We give a sufficient condition for a mirror of an abel…

hep-th2005★ 9 cited

Notes on Generalised Nullvectors in logarithmic CFT

Holger Eberle, Michael Flohr

In these notes we discuss the procedure how to calculate nullvectors in general indecomposable representations which are encountered in logarithmic conformal field theories. In par…

hep-ph2005★ 201 cited

What is the Discrete Gauge Symmetry of the MSSM?

Herbi K. Dreiner, Christoph Luhn, Marc Thormeier

We systematically study the extension of the Supersymmetric Standard Model (SSM) by an anomaly-free discrete gauge symmetry Z_N. We extend the work of Ibanez and Ross with N=2,3 to…

cond-mat.mtrl-sci2005

Consequences of the background in piezoresponse force microscopy on the imaging of ferroelectric domain structures

T. Jungk, A. Hoffmann, E. Soergel

The interpretation of ferroelectric domain images obtained with piezoresponse force microscopy (PFM) is discussed. The influences of an inherent experimental background on the doma…

cond-mat.other2005★ 106 cited

Fourier synthesis of optical potentials for atomic quantum gases

Gunnar Ritt, Carsten Geckeler, Tobias Salger +2

We demonstrate a scheme for the Fourier synthesis of periodic optical potentials with asymmetric unit cells for atoms. In a proof of principle experiment, an atomic Bose-Einstein c…

astro-ph2005★ 9 cited

Star-burst regions in the LMC

E. Livanou, M. Kontizas, I. Gonidakis +5

Aims. Filamentary structures of early type stars are found to be a common feature of the Magellanic Clouds formed at an age of about 0.9-2*10^8 yr. As we go to younger ages these l…

astro-ph2005★ 50 cited

The design and performance of the Gaia photometric system

C. Jordi, E. Hoeg, A. G. A. Brown +32

The European Gaia astrometry mission is due for launch in 2011. Gaia will rely on the proven principles of ESA's Hipparcos mission to create an all-sky survey of about one billion…

astro-ph2005★ 86 cited

Weak lensing mass reconstructions of the ESO Distant Cluster Survey

D. Clowe, P. Schneider, A. Aragon-Salamanca +12

We present weak lensing mass reconstructions for the 20 high-redshift clusters i n the ESO Distant Cluster Survey. The weak lensing analysis was performed on deep, 3-color optical…

astro-ph2005★ 55 cited

Tidal Capture of Stars by Intermediate-Mass Black Holes

H. Baumgardt, C. Hopman, S. Portegies Zwart +1

Recent X-ray observations and theoretical modelling have made it plausible that some ultraluminous X-ray sources (ULX) are powered by intermediate-mass black holes (IMBHs). N-body…

hep-ex2005★ 108 cited

Measurement of the Isolated Photon Cross Section in p-pbar Collisions at sqrt{s}=1.96 TeV

D0 Collaboration

The cross section for the inclusive production of isolated photons has been measured in p anti-p collisions at sqrt{s}=1.96 TeV with the D0 detector at the Fermilab Tevatron Collid…