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math.DG2005

Lefschetz-Pontrjagin Duality for Differential Characters

F. Reese Harvey, H. Blaine Lawson

A theory of differential characters is developed for manifolds with boundary. This is done from both the Cheeger-Simons and the deRham-Federer viewpoints. The central result of the…

cond-mat.soft2005★ 23 cited

Transport of Single Molecules Along the Periodic Parallel Lattices with Coupling

Evgeny B. Stukalin, Anatoly B. Kolomeisky

General discrete one-dimensional stochastic models to describe the transport of single molecules along coupled parallel lattices with period are developed. Theoretical analysis…

cond-mat.mes-hall2005★ 57 cited

Doping dependent charge injection and band alignment in organic field-effect transistors

B. H. Hamadani, H. Ding, Y. Hao +1

We have studied metal/organic semiconductor charge injection in poly(3-hexylthiophene) (P3HT) field-effect transistors with Pt and Au electrodes as a function of annealing in vacuu…

math.DG2005★ 1 cited

The de Rham-Federer Theory of Differential Characters and Character Duality

F. Reese Harvey, H. Blaine Lawson, John Zweck

The theory of differential characters is developed completely from a de Rham - Federer viewpoint. Characters are defined as equivalence classes of special currents, called sparks,…

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…

nucl-ex2005★ 46 cited

Multiplicity and Pseudorapidity Distributions of Charged Particles and Photons at Forward Pseudorapidity in Au + Au Collisions at sqrt{s_NN} = 62.4 GeV

STAR Collaboration

We present the centrality dependent measurement of multiplicity and pseudorapidity distributions of charged particles and photons in Au + Au collisions at sqrt{s_NN} = 62.4 GeV. Th…

nucl-ex2005★ 26 cited

Strangelet Search in AuAu Collisions at 200 GeV

STAR Collaboration

We have searched for strangelets in a triggered sample of 61 million central (top 4%) Au+Au collisions at $\sNN = 200 $GeV near beam rapidities at the STAR detector. We have sensit…

nucl-ex2005★ 67 cited

Proton-lambda correlations in central Au+Au collisions at sqrt (s_NN)=200 GeV

STAR Collaboration, J. Adams

We report on p-Lambda, p-Lambda bar, p bar-Lambda and p bar-Lambda bar correlation functions constructed in central Au-Au collisions at sqrt(s_NN)=200GeV by the STAR experiment at…

math.DG2005★ 1 cited

Cocycle superrigidity and harmonic maps with infinite dimensional targets

David Fisher, Theron Hitchman

We announce a generalization of Zimmer's cocycle superrigidity theorem proven using harmonic map techniques. This allows us to generalize many results concerning higher rank lattic…

math.GT2005★ 1 cited

Multiple bridge surfaces restrict knot distance

Maggy Tomova

Suppose M is a closed irreducible orientable 3-manifold, K is a knot in M, P and Q are bridge surfaces for K and K is not removable with respect to Q. We show that either Q is equi…

cond-mat.other2005★ 956 cited

Pairing and Phase Separation in a Polarized Fermi Gas

Guthrie B. Partridge, Wenhui Li, Ramsey I. Kamar +2

We report the observation of a pairing in a number polarized two-component gas of atomic fermions. Beyond a critical polarization, the gas separates into a superfluid paired core s…

astro-ph2005★ 89 cited

Infrared [Fe II] emission from P Cygni's nebula: Atomic data, mass, kinematics, and the 1600 A.D. outburst

Nathan Smith, Patrick Hartigan

We present moderate and high-dispersion 1-2.5 micron spectra of the 10 arcsec nebula around P Cygni, dominated by bright emission lines of [Fe II]. Observed [Fe II] line ratios dis…

hep-ex2005★ 78 cited

Search for pentaquark in high statistics measurement of at CLAS

M. Battaglieri, R. De Vita, V. Kubarovsky +5

The exclusive reaction was studied in the photon energy range between 1.6-3.8 GeV searching for evidence of the exotic baryon . The decay…

cond-mat.other2005★ 27 cited

Dissociation dynamics of a Bose-Einstein condensate of molecules

Michael W. Jack, Han Pu

An unstable condensate of diatomic molecules will coherently disassociate into correlated pairs of atoms. This dissociation process exhibits very rich quantum dynamics depending on…

nucl-ex2005★ 38 cited

Electron Scattering From High-Momentum Neutrons in Deuterium

A. V. Klimenko, S. E. Kuhn

We report results from an experiment measuring the semi-inclusive reaction where the proton is moving at a large angle relative to the momentum transfer. If we a…

quant-ph2005★ 11 cited

Complex Energies and Beginnings of Time Suggest a Theory of Scattering and Decay

A. Bohm, P. Kielanowski, S. Wickramasekara

Many useful concepts for a quantum theory of scattering and decay (like Lippmann-Schwinger kets, purely outgoing boundary conditions, exponentially decaying Gamow vectors, causalit…

math.NT2005★ 10 cited

On the torsion of Jacobians of principal modular curves of level 3^n

Matthew Papanikolas, Christopher Rasmussen

We demonstrate that the 3-power torsion points of the Jacobians of the principal modular curves X(3^n) are fixed by the kernel of the canonical outer Galois representation of the p…

nucl-ex2005★ 67 cited

Directed flow in Au+Au collisions at =62.4 GeV

STAR Collaboration, J. Adams

We present the directed flow () measured in Au+Au collisions at = 62.4 GeV in the mid-pseudorapidity region and in the forward pseudorapidity regi…

math.GT2005

The parity of the Cochran-Harvey invariants of 3-manifolds

Stefan Friedl, Taehee Kim

Given a finitely presented group G and an epimorphism G to the group of integers Cochran and Harvey defined a sequence of integral invariants, which can be viewed as the degrees of…

cond-mat.mes-hall2005★ 37 cited

Magnetoresistance of atomic-scale electromigrated nickel nanocontacts

Z. K. Keane, L. H. Yu, D. Natelson

We report measurements of the electron transport through atomic-scale constrictions and tunnel junctions between ferromagnetic electrodes. Structures are fabricated using a combina…

physics.optics2005

Pumped quantum systems: immersion fluids of the future?

Vikas Anant, Magnus Rådmark, Ayman F. Abouraddy +2

Quantum optical techniques may yield immersion fluids with high indices of refraction without absorption. We describe one such technique in which a probe field experiences a large…

nucl-ex2005★ 285 cited

Differential Cross Sections for gamma + p --> K+ + Y for Lambda and Sigma0 Hyperons

R. Bradford, R. A. Schumacher, J. W. C. McNabb +1

High-statistics cross sections for the reactions gamma + p --> K^+ + Lambda and gamma + p --> K^+ + Sigma^0 have been measured using CLAS at Jefferson Lab for center-of-mass energi…

astro-ph2005★ 60 cited

Measuring the Magnetic Field on the Classical T Tauri Star TW Hydrae

H. Yang, C. M. Johns-Krull, J. A. Valenti

We present infrared (IR) and optical echelle spectra of the Classical T Tauri star TW Hydrae. Using the optical data, we perform detailed spectrum synthesis to fit atomic and molec…

cond-mat.soft2005★ 13 cited

Dynamic Phase Transitions in Coupled Motor Proteins

Evgeny B. Stukalin, Anatoly B. Kolomeisky

The effect of interactions on dynamics of coupled motor proteins is investigated theoretically. A simple stochastic discrete model, that allows to calculate explicitly the dynamic…