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quant-ph2000★ 130 cited

Quantum factoring, discrete logarithms and the hidden subgroup problem

Richard Jozsa

Amongst the most remarkable successes of quantum computation are Shor's efficient quantum algorithms for the computational tasks of integer factorisation and the evaluation of disc…

astro-ph2000★ 12 cited

The X-ray emission of 3C 346 and its environment

D. M. Worrall, M. Birkinshaw

We present a detailed spectral and spatial analysis of the X-ray properties of the compact and unusual radio galaxy 3C 346, combining information from ROSAT and ASCA. The dominant…

cond-mat.soft2000★ 47 cited

Measurement of the hydrodynamic forces between two polymer-coated spheres

P. Bartlett, S. I. Henderson, S. J. Mitchell

The hydrodynamic forces between Brownian spheres are determined from a measurement of the correlated thermal fluctuations in particle position using a new method, two-particle cros…

astro-ph2000★ 17 cited

Tunable-filter imaging of quasar fields at z~1. I. A cluster around MRC B0450-221

Joanne C. Baker, Richard W. Hunstead, Malcolm N. Bremer +3

Using a combination of multicolour broad- and narrow-band imaging techniques and follow-up spectroscopy, we have detected an overdensity of galaxies in the field of quasar MRC B045…

nlin.CD2000★ 11 cited

Quantum cat maps with spin 1/2

Stefan Keppeler, Jens Marklof, Francesco Mezzadri

We derive a semiclassical trace formula for quantized chaotic transformations of the torus coupled to a two-spinor precessing in a magnetic field. The trace formula is applied to s…

cond-mat.supr-con2000★ 1 cited

Superconductivity in Disordered Sr2RuO4

G. Litak, J. F. Annett, B. L. Gyorffy

We discuss the influence of disorder on the critical temperature Tc of a p-wave superconductor. To describe disordered Sr2RuO4 we use the extended Hubbard model with random site en…

astro-ph2000★ 1 cited

Diffuse Cluster-wide Radio Halos

Haida Liang

We will discuss the properties and origins of halos and relics including estimates of the cluster magnetic fields, and present results for a few recently discovered halos and relic…

quant-ph2000★ 6 cited

Strong Converse for Identification via Quantum Channels

R. Ahlswede, A. Winter

In this paper we present a simple proof of the strong converse for identification via discrete memoryless quantum channels, based on a novel covering lemma. The new method is a gen…

astro-ph2000★ 135 cited

The XMM-Newton Serendipitous Survey I. The role of XMM-Newton Survey Science Centre

M. G. Watson

This paper describes the performance of XMM-Newton for serendipitous surveys and summarises the scope and potential of the XMM-Newton Serendipitous Survey. The role of the Survey S…

astro-ph2000★ 148 cited

XMM-Newton observations of M87 and Its X-Ray Halo

H. Boehringer, E. Belsole, J. Kennea +10

We report performance verification observations of the giant elliptical galaxy M87 in the Virgo Cluster with the MOS, pn, and optical monitor instruments on board of XMM-Newton. Wi…

astro-ph2000★ 71 cited

An XMM-Newton study of the sub-structure in M87's halo

E. Belsole, J. L. Sauvageot, H. Bohringer +9

The high signal to noise and good point spread function of XMM have allowed the first detailed study of the interaction between the thermal and radio emitting plasma in the central…

hep-ph2000★ 3 cited

A Comparison of the Momentum Spectra in Deep Inelastic Scattering with the Modified Leading Logarithmic Approximation

N H Brook, I O Skillicorn

The evolution of the logarithmic scaled energy spectra with energy scale, in the framework of the modified leading logarithmic approximation (MLLA), is investigated. The behaviour…

nlin.CD2000★ 2 cited

Note on chaos and diffusion

C. P. Dettmann, E. G. D. Cohen

Using standard definitions of chaos (as positive Kolmogorov-Sinai entropy) and diffusion (that multiple time distribution functions are Gaussian), we show numerically that both cha…

cond-mat.supr-con2000

Comment on "High Field Quasiparticle Tunneling in Bi_2Sr_2CaCu_2O_{8+δ} : Negative Magnetoresistance in the Superconducting State" (N.Morozov et al, Phys.Rev. Lett. 84,1784 (2000))

V. N. Zavaritsky, M. Springford, A. S. Alexandrov

We show that the negative c-axis magnetoresistance in cuprates is the normal state feature.

cond-mat.supr-con2000★ 42 cited

Evidence for Surface Andreev Bound states in Cuprate Superconductors from Penetration Depth Measurements

A. Carrington, F. Manzano, R. Prozorov +3

Tunneling and theoretical studies have suggested that Andreev bound states form at certain surfaces of unconventional superconductors. Through studies of the temperature and field…

quant-ph2000★ 16 cited

On the reversible extraction of classical information from a quantum source

Howard Barnum, Patrick Hayden, Richard Jozsa +1

Consider a source E of pure quantum states with von Neumann entropy S. By the quantum source coding theorem, arbitrarily long strings of signals may be encoded asymptotically into…

quant-ph2000

Quantum Finite State Transducers

R. Freivalds, A. Winter

We introduce quantum finite state transducers (qfst), and study the class of relations which they compute. It turns out that they share many features with probabilistic finite stat…

cond-mat.str-el2000★ 623 cited

Onset of antiferromagnetism in heavy fermion metals

A. Schroder, G. Aeppli, R. Coldea +6

There are two views of antiferromagnets. The first proceeds from atomic physics, which predicts that atoms with unpaired electrons develop magnetic moments. In a solid, the couplin…

nlin.CD2000★ 59 cited

Star graphs and Seba billiards

G. Berkolaiko, E. B. Bogomolny, J. P. Keating

We derive an exact expression for the two-point correlation function for quantum star graphs in the limit as the number of bonds tends to infinity. This turns out to be identical t…

cond-mat.stat-mech2000★ 31 cited

Influence of Capillary Condensation on the Near-Critical Solvation Force

A. Drzewinski, A. Maciolek, R. Evans

We argue that in a fluid, or magnet, confined by adsorbing walls which favour liquid, or (+) phase, the solvation (Casimir) force in the vicinity of the critical point is strongly…

astro-ph2000

Probing the gravitational potential of a nearby lensing cluster Abell 2104

H. Liang, L. Lemonon, I. Valtchanov +2

The cluster Abell 2104 is one of the lowest redshift clusters (z=0.153) known to have a gravitational lensing arc. We present detailed analysis of the cluster properties such as th…

nlin.CD2000★ 49 cited

Orbit bifurcations and the scarring of wavefunctions

J. P. Keating, S. D. Prado

We extend the semiclassical theory of scarring of quantum eigenfunctions psi_{n}(q) by classical periodic orbits to include situations where these orbits undergo generic bifurcatio…

hep-ex2000★ 40 cited

An improved direct measurement of leptonic coupling asymmetries with polarized Z bosons

The SLD Collaboration, K. Abe

We present final measurements of the Z boson-lepton coupling asymmetry parameters Ae, Amu, and Atau with the complete sample of polarized Z bosons collected by the SLD detector at…

hep-ex2000★ 33 cited

Precision measurements of the Lambda_c+ and D0 lifetimes

The SELEX collaboration, A. Kushnirenko

We report new precision measurements of the lifetimes of the Lambda_c+ and D0 from SELEX, the charm hadro-production experiment at Fermilab. Based upon 1630 Lambda_c+ and 10210 D0…