Volume 93, Issue 2

9 July 2004

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On the Cover

Calculated pattern of ultrasonic waves from a point source (off the figure to the left) being focused by a "phononic crystal" along the left edge. The narrow focusing is a result of negative refraction by the crystal; in an experiment with an actual phononic crystal made up of tungsten carbide beads immersed in water, the same sharp focusing is seen.

From the article:

Focusing of Sound in a 3D Phononic Crystal
Suxia Yang, J. H. Page, Zhengyou Liu, M. L. Cowan, C. T. Chan, and Ping Sheng
Phys. Rev. Lett. 93, 024301 (2004)

HIGHLIGHTED ARTICLES

FEATURED IN PHYSICS

Growth and Form of Planetary Seedlings: Results from a Sounding Rocket Microgravity Aggregation Experiment

Maya Krause and Jürgen Blum

Phys. Rev. Lett. 93, 021103 (2004) - Published 9 July, 2004

FEATURED IN PHYSICS

Focusing of Sound in a 3D Phononic Crystal

Suxia Yang, J. H. Page, Zhengyou Liu, M. L. Cowan, C. T. Chan, and Ping Sheng

Phys. Rev. Lett. 93, 024301 (2004) - Published 7 July, 2004

LETTERS

General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

Proposed Test of Quantum Nonlocality for Continuous Variables

Hyunchul Nha and H. J. Carmichael

Phys. Rev. Lett. 93, 020401 (2004) - Published 7 July, 2004

Particle Beams Guided by Electromagnetic Vortices: New Solutions of the Lorentz, Schrödinger, Klein-Gordon, and Dirac Equations

Iwo Bialynicki-Birula

Phys. Rev. Lett. 93, 020402 (2004) - Published 9 July, 2004

Simultaneous Arrival of Information in Absorbing Waveguides

A. Ruschhaupt and J. G. Muga

Phys. Rev. Lett. 93, 020403 (2004) - Published 9 July, 2004

Umklapp Collisions and Center-of-Mass Oscillations of a Trapped Fermi Gas

G. Orso, L. P. Pitaevskii, and S. Stringari

Phys. Rev. Lett. 93, 020404 (2004) - Published 9 July, 2004

Quantum Phase Transition in an Atomic Bose Gas with a Feshbach Resonance

M. W. J. Romans, R. A. Duine, Subir Sachdev, and H. T. C. Stoof

Phys. Rev. Lett. 93, 020405 (2004) - Published 9 July, 2004

Microstructured Switchable Mirror for Polar Molecules

Stephan A. Schulz, Hendrick L. Bethlem, Jacqueline van Veldhoven, Jochen Küpper, Horst Conrad, and Gerard Meijer

Phys. Rev. Lett. 93, 020406 (2004) - Published 9 July, 2004

Charge Detection Enables Free-Electron Quantum Computation

C. W. J. Beenakker, D. P. DiVincenzo, C. Emary, and M. Kindermann

Phys. Rev. Lett. 93, 020501 (2004) - Published 6 July, 2004

Minimum Construction of Two-Qubit Quantum Operations

Jun Zhang, Jiri Vala, Shankar Sastry, and K. Birgitta Whaley

Phys. Rev. Lett. 93, 020502 (2004) - Published 7 July, 2004

Nonadditivity of Quantum Capacity for Multiparty Communication Channels

W. Dür, J. I. Cirac, and P. Horodecki

Phys. Rev. Lett. 93, 020503 (2004) - Published 8 July, 2004

Realization of a Photonic Controlled-NOT Gate Sufficient for Quantum Computation

Sara Gasparoni, Jian-Wei Pan, Philip Walther, Terry Rudolph, and Anton Zeilinger

Phys. Rev. Lett. 93, 020504 (2004) - Published 9 July, 2004

Ensemble Averages and Nonextensivity at the Edge of Chaos of One-Dimensional Maps

Garin F. J. Añaños and Constantino Tsallis

Phys. Rev. Lett. 93, 020601 (2004) - Published 7 July, 2004

Exactly Solvable Model of Monomer-Monomer Reactions on a Two-Dimensional Random Catalytic Substrate

G. Oshanin, M. N. Popescu, and S. Dietrich

Phys. Rev. Lett. 93, 020602 (2004) - Published 8 July, 2004

Gravitation and Astrophysics

New Limits on Planck Scale Lorentz Violation in QED

T. Jacobson, S. Liberati, D. Mattingly, and F. W. Stecker

Phys. Rev. Lett. 93, 021101 (2004) - Published 8 July, 2004

Black Hole Mass Decreasing due to Phantom Energy Accretion

E. Babichev, V. Dokuchaev, and Yu. Eroshenko

Phys. Rev. Lett. 93, 021102 (2004) - Published 8 July, 2004

FEATURED IN PHYSICS

Growth and Form of Planetary Seedlings: Results from a Sounding Rocket Microgravity Aggregation Experiment

Maya Krause and Jürgen Blum

Phys. Rev. Lett. 93, 021103 (2004) - Published 9 July, 2004

Are Halos of Collisionless Cold Dark Matter Collisionless?

Chung-Pei Ma and Michael Boylan-Kolchin

Phys. Rev. Lett. 93, 021301 (2004) - Published 9 July, 2004

Elementary Particles and Fields

Observation of Large $C P$ Violation and Evidence for Direct $C P$ Violation in $B^{0} \to π^{+} π^{-}$ Decays

K. Abe et al. (Belle Collaboration)

Phys. Rev. Lett. 93, 021601 (2004) - Published 6 July, 2004

Model Independent Bound on the Unitarity Triangle from $C P$ Violation in $B \to π^{+} π^{-}$ and $B \to ψ K_{S}$

Gerhard Buchalla and A. Salim Safir

Phys. Rev. Lett. 93, 021801 (2004) - Published 6 July, 2004

Limits on the Neutrino Magnetic Moment using 1496 Days of Super-Kamiokande-I Solar Neutrino Data

D. W. Liu et al. (Super-Kamiokande Collaboration)

Phys. Rev. Lett. 93, 021802 (2004) - Published 6 July, 2004

Testing the Maximal Nature of Muon Neutrino Flavor Mixing

Sandhya Choubey and Probir Roy

Phys. Rev. Lett. 93, 021803 (2004) - Published 9 July, 2004

Measurement of the Direct $C P$ Asymmetry in $b \to s γ$ Decays

B. Aubert et al. (BABAR Collaboration)

Phys. Rev. Lett. 93, 021804 (2004) - Published 9 July, 2004

Search for the Rare Decay $K_{L} \to π^{0} e^{+} e^{-}$

A. Alavi-Harati et al.

Phys. Rev. Lett. 93, 021805 (2004) - Published 9 July, 2004

Baryon Exotics in the Quark Model, the Skyrme Model, and QCD

Elizabeth Jenkins and Aneesh V. Manohar

Phys. Rev. Lett. 93, 022001 (2004) - Published 6 July, 2004

Measurement of Strange-Quark Contributions to the Nucleon's Form Factors at $Q^{2} = 0.230 (G e V / c)^{2}$

F. E. Maas et al.

Phys. Rev. Lett. 93, 022002 (2004) - Published 7 July, 2004

Nuclear Physics

Interferometry of Direct Photons in Central ${}^{208}{P b} + {}^{208}{P b}$ Collisions at $158 A G e V$

M. M. Aggarwal et al. (WA98 Collaboration)

Phys. Rev. Lett. 93, 022301 (2004) - Published 6 July, 2004

$Λ$ and $\bar{Λ}$ Production in Central Pb-Pb Collisions at 40, 80, and $158 A G e V$

T. Anticic et al. (The NA49 Collaboration)

Phys. Rev. Lett. 93, 022302 (2004) - Published 9 July, 2004

Compound and Rotational Damping in Warm Deformed Rare-Earth Nuclei

S. Leoni et al.

Phys. Rev. Lett. 93, 022501 (2004) - Published 7 July, 2004

Atomic, Molecular, and Optical Physics

Ionization of Atoms by the Spatial Gradient of the Pondermotive Potential in a Focused Laser Beam

E. Wells, I. Ben-Itzhak, and R. R. Jones

Phys. Rev. Lett. 93, 023001 (2004) - Published 6 July, 2004

Interplay of Intra-atomic and Interatomic Effects: An Investigation of the $2 p$ Core Level Spectra of Atomic Fe and Molecular ${F e C l}_{2}$

T. Richter, K. Godehusen, M. Martins, T. Wolff, and P. Zimmermann

Phys. Rev. Lett. 93, 023002 (2004) - Published 7 July, 2004

Unexpected Behavior of the Near-Threshold Double-Photoionization Cross Section of Beryllium

D. Lukić, J. B. Bluett, and R. Wehlitz

Phys. Rev. Lett. 93, 023003 (2004) - Published 7 July, 2004

Ion Solvation Dynamics in Supercritical Fluids

S. A. Egorov

Phys. Rev. Lett. 93, 023004 (2004) - Published 9 July, 2004

Two Photon Absorption and Coherent Control with Broadband Down-Converted Light

Barak Dayan, Avi Pe'er, Asher A. Friesem, and Yaron Silberberg

Phys. Rev. Lett. 93, 023005 (2004) - Published 9 July, 2004

Structure Determination of Isolated Metal Clusters via Far-Infrared Spectroscopy

André Fielicke, Andrei Kirilyuk, Christian Ratsch, Jörg Behler, Matthias Scheffler, Gert von Helden, and Gerard Meijer

Phys. Rev. Lett. 93, 023401 (2004) - Published 7 July, 2004

Formation Times of RbHe Exciplexes on the Surface of Superfluid versus Normal Fluid Helium Nanodroplets

G. Droppelmann, O. Bünermann, C. P. Schulz, and F. Stienkemeier

Phys. Rev. Lett. 93, 023402 (2004) - Published 9 July, 2004

Observation of Light Dragging in a Rubidium Vapor Cell

Dmitry Strekalov, Andrey B. Matsko, Nan Yu, and Lute Maleki

Phys. Rev. Lett. 93, 023601 (2004) - Published 6 July, 2004

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc.

Interaction of Femtosecond Light Filaments with Obscurants in Aerosols

S. Skupin, L. Bergé, U. Peschel, and F. Lederer

Phys. Rev. Lett. 93, 023901 (2004) - Published 7 July, 2004

Surface Modes and Multipower-Law Structure in the Early-Time Electromagnetic Response of Magnetic Targets

Peter B. Weichman

Phys. Rev. Lett. 93, 023902 (2004) - Published 8 July, 2004

Movable Aperture Lensless Transmission Microscopy: A Novel Phase Retrieval Algorithm

H. M. L. Faulkner and J. M. Rodenburg

Phys. Rev. Lett. 93, 023903 (2004) - Published 9 July, 2004

Homogenization of Magnetodielectric Photonic Crystals

A. A. Krokhin and E. Reyes

Phys. Rev. Lett. 93, 023904 (2004) - Published 9 July, 2004

FEATURED IN PHYSICS

Focusing of Sound in a 3D Phononic Crystal

Suxia Yang, J. H. Page, Zhengyou Liu, M. L. Cowan, C. T. Chan, and Ping Sheng

Phys. Rev. Lett. 93, 024301 (2004) - Published 7 July, 2004

${C O}_{2}$ Molecule as a Quantum Realization of the $1 ∶ 1 ∶ 2$ Resonant Swing-Spring with Monodromy

R. H. Cushman, H. R. Dullin, A. Giacobbe, D. D. Holm, M. Joyeux, P. Lynch, D. A. Sadovskií, and B. I. Zhilinskií

Phys. Rev. Lett. 93, 024302 (2004) - Published 8 July, 2004

Varieties of Dynamic Multiscaling in Fluid Turbulence

Dhrubaditya Mitra and Rahul Pandit

Phys. Rev. Lett. 93, 024501 (2004) - Published 6 July, 2004

Plasma and Beam Physics

Pole Dynamics for the Flierl-Petviashvili Equation and Zonal Flow

F. Spineanu, M. Vlad, K. Itoh, H. Sanuki, and S.-I. Itoh

Phys. Rev. Lett. 93, 025001 (2004) - Published 9 July, 2004

Condensed Matter: Structure, etc.

Clarification of the Bootstrap Percolation Paradox

Paolo De Gregorio, Aonghus Lawlor, Phil Bradley, and Kenneth A. Dawson

Phys. Rev. Lett. 93, 025501 (2004) - Published 6 July, 2004

Monocrystal Elastic Constants of the Negative-Thermal-Expansion Compound Zirconium Tungstate ( ${Z r W}_{2} O_{8}$ )

F. R. Drymiotis, H. Ledbetter, J. B. Betts, T. Kimura, J. C. Lashley, A. Migliori, A. P. Ramirez, G. R. Kowach, and J. Van Duijn

Phys. Rev. Lett. 93, 025502 (2004) - Published 8 July, 2004

Atomistic Study of Dislocation Loop Emission from a Crack Tip

Ting Zhu, Ju Li, and Sidney Yip

Phys. Rev. Lett. 93, 025503 (2004) - Published 9 July, 2004

Quantum Signatures of Breather-Breather Interactions

J. Dorignac, J. C. Eilbeck, M. Salerno, and A. C. Scott

Phys. Rev. Lett. 93, 025504 (2004) - Published 9 July, 2004

High-Density Liquidlike Component Facilitates Plastic Flow in a Model Amorphous Silicon System

M. J. Demkowicz and A. S. Argon

Phys. Rev. Lett. 93, 025505 (2004) - Published 9 July, 2004

Aging and Equilibrium Fluctuations for domain Growth in Ternary Mixtures

Sanjay Puri and Deepak Kumar

Phys. Rev. Lett. 93, 025701 (2004) - Published 8 July, 2004

Proton Transfer in Heterocycle Crystals

M. Iannuzzi and M. Parrinello

Phys. Rev. Lett. 93, 025901 (2004) - Published 9 July, 2004

Single-File Diffusion of Colloids in One-Dimensional Channels

Christoph Lutz, Markus Kollmann, and Clemens Bechinger

Phys. Rev. Lett. 93, 026001 (2004) - Published 8 July, 2004

Interactions in Self-Organized Nanoporous Organic Crystals

Lydie Bourgeois, Bertrand Toudic, Claude Ecolivet, Jean-Claude Ameline, Philippe Bourges, François Guillaume, and Tomasz Breczewski

Phys. Rev. Lett. 93, 026101 (2004) - Published 9 July, 2004

Condensed Matter: Electronic Properties, etc.

Thermoelectric Power of ${H o B a C o}_{2} O_{5.5}$ : Possible Evidence of the Spin Blockade in Cobaltites

A. Maignan, V. Caignaert, B. Raveau, D. Khomskii, and G. Sawatzky

Phys. Rev. Lett. 93, 026401 (2004) - Published 8 July, 2004

Orbital Magnetism: Pros and Cons for Enhancing the Cluster Magnetism

Antonis N. Andriotis and Madhu Menon

Phys. Rev. Lett. 93, 026402 (2004) - Published 9 July, 2004

Current-Driven Switching in a Single Exchange-Biased Ferromagnetic Layer

T. Y. Chen, Y. Ji, C. L. Chien, and M. D. Stiles

Phys. Rev. Lett. 93, 026601 (2004) - Published 6 July, 2004

Phonon Excitations of Composite-Fermion Landau Levels

F. Schulze-Wischeler, F. Hohls, U. Zeitler, D. Reuter, A. D. Wieck, and R. J. Haug

Phys. Rev. Lett. 93, 026801 (2004) - Published 7 July, 2004

Thermal Stability and Electronic Structure of Atomically Uniform Pb Films on Si(111)

M. H. Upton, C. M. Wei, M. Y. Chou, T. Miller, and T.-C. Chiang

Phys. Rev. Lett. 93, 026802 (2004) - Published 7 July, 2004

Einselection in Action: Decoherence and Pointer States in Open Quantum Dots

D. K. Ferry, R. Akis, and J. P. Bird

Phys. Rev. Lett. 93, 026803 (2004) - Published 7 July, 2004

Evidence for Current-Flow Anomalies in the Irradiated 2D Electron System at Small Magnetic Fields

R. L. Willett, L. N. Pfeiffer, and K. W. West

Phys. Rev. Lett. 93, 026804 (2004) - Published 7 July, 2004

Cluster Core-Level Binding-Energy Shifts: The Role of Lattice Strain

B. Richter, H. Kuhlenbeck, H.-J. Freund, and P. S. Bagus

Phys. Rev. Lett. 93, 026805 (2004) - Published 8 July, 2004

Magnetic Order in Lightly Doped ${L a}_{2 - x} {S r}_{x} {C u O}_{4}$

A. Gozar, B. S. Dennis, G. Blumberg, Seiki Komiya, and Yoichi Ando

Phys. Rev. Lett. 93, 027001 (2004) - Published 6 July, 2004

Spin Correlations and Magnetic Order in Nonsuperconducting ${N d}_{2 - x} {C e}_{x} {C u O}_{4 \pm δ}$

P. K. Mang, O. P. Vajk, A. Arvanitaki, J. W. Lynn, and M. Greven

Phys. Rev. Lett. 93, 027002 (2004) - Published 8 July, 2004

Evidence for a Novel State of Superconductivity in Noncentrosymmetric ${C e P t}_{3} S i$ : A ${}^{195}{P t}$ -NMR Study

M. Yogi, Y. Kitaoka, S. Hashimoto, T. Yasuda, R. Settai, T. D. Matsuda, Y. Haga, Y. Ōnuki, P. Rogl, and E. Bauer

Phys. Rev. Lett. 93, 027003 (2004) - Published 8 July, 2004

Nonlinear Transport near a Quantum Phase Transition in Two Dimensions

Denis Dalidovich and Philip Phillips

Phys. Rev. Lett. 93, 027004 (2004) - Published 8 July, 2004

Magnon-Hole Scattering and Charge Order in ${S r}_{14 - x} {C a}_{x} {C u}_{24} O_{41}$

C. Hess, H. ElHaes, B. Büchner, U. Ammerahl, M. Hücker, and A. Revcolevschi

Phys. Rev. Lett. 93, 027005 (2004) - Published 9 July, 2004

Excitation Hierarchy of the Quantum Sine-Gordon Spin Chain in a Strong Magnetic Field

S. A. Zvyagin, A. K. Kolezhuk, J. Krzystek, and R. Feyerherm

Phys. Rev. Lett. 93, 027201 (2004) - Published 6 July, 2004

Direct Determination of the Magnetic Ground State in the Square Lattice $S = 1 / 2$ Antiferromagnet ${L i}_{2} {V O S i O}_{4}$

A. Bombardi, J. Rodriguez-Carvajal, S. Di Matteo, F. de Bergevin, L. Paolasini, P. Carretta, P. Millet, and R. Caciuffo

Phys. Rev. Lett. 93, 027202 (2004) - Published 7 July, 2004

Giant Magnetic Anisotropy in Tetragonal FeCo Alloys

Till Burkert, Lars Nordström, Olle Eriksson, and Olle Heinonen

Phys. Rev. Lett. 93, 027203 (2004) - Published 9 July, 2004

Low Temperature Emission Spectra of Individual Single-Walled Carbon Nanotubes: Multiplicity of Subspecies within Single-Species Nanotube Ensembles

H. Htoon, M. J. O'Connell, P. J. Cox, S. K. Doorn, and V. I. Klimov

Phys. Rev. Lett. 93, 027401 (2004) - Published 8 July, 2004

Angle-Resolved Photoemission from Surface States

E. E. Krasovskii and W. Schattke

Phys. Rev. Lett. 93, 027601 (2004) - Published 7 July, 2004

Soft Matter, Biological, and Interdisciplinary Physics

ERRATA

Publisher's Note: Fermi-Ulam Accelerator Model under Scaling Analysis[Phys. Rev. Lett. 93, 014101 (2004)]

Edson D. Leonel, P. V. E. McClintock, and J. Kamphorst Leal da Silva

Phys. Rev. Lett. 93, 029901 (2004) - Published 8 July, 2004

Publisher's Note: Molecular Dynamics Simulations of a Fluid near Its Critical Point [Phys. Rev. Lett. 93, 015701 (2004)]

Kamakshi Jagannathan and Arun Yethiraj

Phys. Rev. Lett. 93, 029902 (2004) - Published 9 July, 2004