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19922026
most citedAstropy: A Community Python Package for Astronomy

14.6k citations

Showing 2003Show all

89 papers · 1 filter

cond-mat.supr-con2003★ 59 cited

Field-induced spin mixing in ultrathin superconducting Al and Be films in high parallel magnetic fields

P. W. Adams

We report spin-dependent electron density of states (DOS) studies of ultra-thin superconducting Al and Be films in high parallel magnetic fields. Superconductor-insulator-supercond…

gr-qc2003★ 126 cited

Analysis of First LIGO Science Data for Stochastic Gravitational Waves

LIGO Scientific Collaboration, B. Abbott

We present the analysis of between 50 and 100 hrs of coincident interferometric strain data used to search for and establish an upper limit on a stochastic background of gravitatio…

hep-ex2003★ 8 cited

Search for Colour Singlet and Colour Reconnection Effects in Hadronic Z Decays at LEP

L3 Collaboration

A search is performed in symmetric 3-jet hadronic Z decay events for evidence of colour singlet production or colour reconnection effects. Asymmetries in the angular separation of…

gr-qc2003★ 131 cited

First upper limits from LIGO on gravitational wave bursts

LIGO Scientific Collaboration, B. Abbott

We report on a search for gravitational wave bursts using data from the first science run of the LIGO detectors. Our search focuses on bursts with durations ranging from 4 ms to 10…

gr-qc2003★ 31 cited

3D simulations of Einstein's equations: symmetric hyperbolicity, live gauges and dynamic control of the constraints

Manuel Tiglio, Luis Lehner, David Neilsen

We present three-dimensional simulations of Einstein equations implementing a symmetric hyperbolic system of equations with dynamical lapse. The numerical implementation makes use…

nucl-th2003★ 34 cited

Algebraic Solutions of an Extended Pairing Model for Well-Deformed Nuclei

Feng Pan, V. G. Gueorguiev, J. P. Draayer

A Nilsson mean-field plus extended pairing interaction Hamiltonian with many-pair interaction terms is proposed. Eigenvalues of the extended pairing model are easy to obtain. Our i…

math-ph2003★ 2 cited

Aspects of Diffeomorphism Invariant Theory of Extended Objects

V. G. Gueorguiev

The structure of a diffeomorphism invariant Lagrangians for an extended object W embedded in a bulk space M is discussed by following a close analogy with the relativistic particle…

math.OC2003★ 15 cited

Bounded-From-Below Solutions of the Hamilton-Jacobi Equation for Optimal Control Problems with Exit Times: Vanishing Lagrangians, Eikonal Equations, and Shape-From-Shading

Michael Malisoff

We study the Hamilton-Jacobi equation for undiscounted exit time control problems with general nonnegative Lagrangians using the dynamic programming approach. We prove theorems cha…

cond-mat2003★ 4 cited

Decoherence in Nanostructures and Quantum Systems

R. F. O'Connell

Decoherence phenomena are pervasive in the arena of nanostructures but perhaps even more so in the study of the fundamentals of quantum mechanics and quantum computation. Since the…

quant-ph2003★ 18 cited

Wigner Distribution Function Approach to Dissipative Problems in Quantum Mechanics with emphasis on Decoherence and Measurement Theory

R. F. O'Connell

We first review the usefulness of the Wigner distribution functions (WDF), associated with Lindblad and pre-master equations, for analyzing a host of problems in Quantum Optics whe…

cond-mat.supr-con2003★ 23 cited

Investigation of the ferromagnetic transition in the correlated 4d perovskites SrRuRhO

K. Yamaura, D. P. Young, E. Takayama-Muromachi

The solid-solution SrRuRhO () is a variable-electron-configuration system forming in the nearly-cubic-perovskite basis, ranging from the ferromagnetic…

math.GT2003★ 6 cited

On the slice genus of links

Vincent Florens, Patrick M. Gilmer

We define Casson-Gordon sigma-invariants for links and give a lower bound of the slice genus of a link in terms of these invariants. We study as an example a family of two componen…

gr-qc2003★ 5 cited

Upper limits on the strength of periodic gravitational waves from PSR J1939+2134

B. Allen, G. Woan

The first science run of the LIGO and GEO gravitational wave detectors presented the opportunity to test methods of searching for gravitational waves from known pulsars. Here we pr…

quant-ph2003★ 32 cited

The Equation of Motion of an Electron

R. F. O'Connell

The claim by Rohrlich that the Abraham-Lorentz-Dirac equation is not the correct equation for a classical point charge is shown to be incorrect and it is pointed out that the equat…

quant-ph2003★ 15 cited

Effect of an External Field on Decoherence

R. F. O'Connell, Jian Zuo

"Decoherence of quantum superpositions through coupling to engineered reservoirs" is the topic of a recent article by Myatt et al. [Nature {\underline{403}}, 269 (2000)] which has…

quant-ph2003★ 17 cited

Decoherence at zero temperature

G. W. Ford, R. F. O'Connell

Most discussions of decoherence in the literature consider the high-temperature regime but it is also known that, in the presence of dissipation, decoherence can occur even at zero…

hep-ex2003★ 18 cited

Search for Decay in LSND

L. B. Auerbach, R. L. Burman, D. O. Caldwell +28

We observe a net beam-excess of (stat) (syst) events, above 160 MeV, resulting from the charged-current reaction of and/or on C and H in the…

astro-ph2003★ 55 cited

The Early Optical Afterglow of GRB 030418 and Progenitor Mass Loss

E. S. Rykoff, D. A. Smith, P. A. Price +13

The ROTSE-IIIa telescope and the SSO-40 inch telescope, both located at Siding Spring Observatory, imaged the early time afterglow of GRB 030418. In this report we present observat…

astro-ph2003★ 7 cited

Superhumps, Magnetic Fields and the Mass-ratio in AM Canum Venaticorum

K. J. Pearson

We show that the observed K-velocities and periodicities of AM CVn can be reconciled given a mass ratio of 0.22 and a secondary star with a modest magnetic field of surface strengt…

hep-lat2003

Consistent Definitions of Flux and Electric and Magnetic Current in Abelian Projected SU(2) Lattice Gauge Theory

Richard W. Haymaker, Takayuki Matsuki

Through the use of a lattice U(1) Ward-Takahashi identity, one can find a precise definition of flux and electric four-current that does not rely on the continuum limit. The magnet…

hep-lat2003

Consistency of lattice definitions of U(1) flux in Abelian projected SU(2) gauge theory

Takayuki Matsuki, Richard W. Haymaker

We reexamine the dual Abrikosov vortex under the requirement that the lattice averages of the fields satisfy exact Maxwell equations [ME]. The electric ME accounts for the total fl…

hep-ex2003★ 123 cited

Search for Scalar Leptons and Scalar Quarks at LEP

L3 Collaboration

Scalar partners of quarks and leptons, predicted in supersymmetric models, are searched for in e^+e^- collisions at centre-of-mass energies between 192GeV and 209GeV at LEP. No evi…

hep-ex2003★ 139 cited

A High Sensitivity Search for 's from the Sun and Other Sources at KamLAND

KamLAND Collaboration

Data corresponding to a KamLAND detector exposure of 0.28 kton-year has been used to search for 's in the energy range 8.3 MeV E 14.8 MeV. No candidate…

astro-ph2003★ 20 cited

New Quasars Detected via Variability in the QUEST1 Survey

A. W. Rengstorf, S. L. Mufson, C. Abad +31

By observing the high galactic latitude equatorial sky in drift scan mode with the QUEST (QUasar Equatorial Survey Team) Phase 1 camera, multi-bandpass photometry on a large strip…