Volume 105, Issue 24

10 December 2010

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On the Cover

3D displacement fields from force-tracking beads as a fibroblast cell crawls on a gel substrate. Upward moving beads are shown in red, downward in green. Selected for an Editors' Suggestion and a Synopsis in Physics.

From the article:

4D Traction Force Microscopy Reveals Asymmetric Cortical Forces in Migrating Dictyostelium Cells
H. Delanoë-Ayari, J. P. Rieu, and M. Sano
Phys. Rev. Lett. 105, 248103 (2010)

HIGHLIGHTED ARTICLES

FEATURED IN PHYSICS

EDITORS' SUGGESTION

High-Precision Determination of the Electric and Magnetic Form Factors of the Proton

J. C. Bernauer, P. Achenbach, C. Ayerbe Gayoso, R. Böhm, D. Bosnar, L. Debenjak, M. O. Distler, L. Doria, A. Esser, H. Fonvieille, J. M. Friedrich, J. Friedrich, M. Gómez Rodríguez de la Paz, M. Makek, H. Merkel, D. G. Middleton, U. Müller, L. Nungesser, J. Pochodzalla, M. Potokar, S. Sánchez Majos, B. S. Schlimme, S. Širca, Th. Walcher, and M. Weinriefer (A1 Collaboration)

Phys. Rev. Lett. 105, 242001 (2010) - Published 10 December, 2010

FEATURED IN PHYSICS

EDITORS' SUGGESTION

4D Traction Force Microscopy Reveals Asymmetric Cortical Forces in Migrating Dictyostelium Cells

H. Delanoë-Ayari, J. P. Rieu, and M. Sano

Phys. Rev. Lett. 105, 248103 (2010) - Published 7 December, 2010

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Sources and Sinks: A Stochastic Model of Evolution in Heterogeneous Environments

Rutger Hermsen and Terence Hwa

Phys. Rev. Lett. 105, 248104 (2010) - Published 8 December, 2010

FEATURED IN PHYSICS

Testing Inflation: A Bootstrap Approach

Latham Boyle and Paul J. Steinhardt

Phys. Rev. Lett. 105, 241301 (2010) - Published 6 December, 2010

FEATURED IN PHYSICS

Synthesis of Cold Antihydrogen in a Cusp Trap

Y. Enomoto, N. Kuroda, K. Michishio, C. H. Kim, H. Higaki, Y. Nagata, Y. Kanai, H. A. Torii, M. Corradini, M. Leali, E. Lodi-Rizzini, V. Mascagna, L. Venturelli, N. Zurlo, K. Fujii, M. Ohtsuka, K. Tanaka, H. Imao, Y. Nagashima, Y. Matsuda, B. Juhász, A. Mohri, and Y. Yamazaki

Phys. Rev. Lett. 105, 243401 (2010) - Published 7 December, 2010

EDITORS' SUGGESTION

Two-Dimensional Optical Control of Electron Spin Orientation by Linearly Polarized Light in InGaAs

K. Schmalbuch, S. Göbbels, Ph. Schäfers, Ch. Rodenbücher, P. Schlammes, Th. Schäpers, M. Lepsa, G. Güntherodt, and B. Beschoten

Phys. Rev. Lett. 105, 246603 (2010) - Published 7 December, 2010

LETTERS

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

Realization of a Sonic Black Hole Analog in a Bose-Einstein Condensate

Oren Lahav, Amir Itah, Alex Blumkin, Carmit Gordon, Shahar Rinott, Alona Zayats, and Jeff Steinhauer

Phys. Rev. Lett. 105, 240401 (2010) - Published 7 December, 2010

Nonperturbative Predictions for Cold Atom Bose Gases with Tunable Interactions

Fred Cooper, Chih-Chun Chien, Bogdan Mihaila, John F. Dawson, and Eddy Timmermans

Phys. Rev. Lett. 105, 240402 (2010) - Published 7 December, 2010

Non-Markovian Relaxation of a Three-Level System: Quantum Trajectory Approach

Jun Jing and Ting Yu

Phys. Rev. Lett. 105, 240403 (2010) - Published 8 December, 2010

Analysis of a Bose-Einstein Condensate Double-Well Atom Interferometer

Douglas K. Faust and William P. Reinhardt

Phys. Rev. Lett. 105, 240404 (2010) - Published 8 December, 2010

Observation of the Ground-State Geometric Phase in a Heisenberg $X Y$ Model

Xinhua Peng, Sanfeng Wu, Jun Li, Dieter Suter, and Jiangfeng Du

Phys. Rev. Lett. 105, 240405 (2010) - Published 10 December, 2010

Geometric Phase with Nonunitary Evolution in the Presence of a Quantum Critical Bath

F. M. Cucchietti, J.-F. Zhang, F. C. Lombardo, P. I. Villar, and R. Laflamme

Phys. Rev. Lett. 105, 240406 (2010) - Published 10 December, 2010

Gravitation and Astrophysics

FEATURED IN PHYSICS

Testing Inflation: A Bootstrap Approach

Latham Boyle and Paul J. Steinhardt

Phys. Rev. Lett. 105, 241301 (2010) - Published 6 December, 2010

Nonparametric Dark Energy Reconstruction from Supernova Data

Tracy Holsclaw, Ujjaini Alam, Bruno Sansó, Herbert Lee, Katrin Heitmann, Salman Habib, and David Higdon

Phys. Rev. Lett. 105, 241302 (2010) - Published 7 December, 2010

Elementary Particles and Fields

$η$ and $η^{'}$ Mesons from Lattice QCD

N. H. Christ, C. Dawson, T. Izubuchi, C. Jung, Q. Liu, R. D. Mawhinney, C. T. Sachrajda, A. Soni, and R. Zhou (RBC and UKQCD Collaborations)

Phys. Rev. Lett. 105, 241601 (2010) - Published 8 December, 2010

Discovering Higgs Boson Decays to Lepton Jets at Hadron Colliders

Adam Falkowski, Joshua T. Ruderman, Tomer Volansky, and Jure Zupan

Phys. Rev. Lett. 105, 241801 (2010) - Published 9 December, 2010

FEATURED IN PHYSICS

EDITORS' SUGGESTION

High-Precision Determination of the Electric and Magnetic Form Factors of the Proton

Phys. Rev. Lett. 105, 242001 (2010) - Published 10 December, 2010

Atomic, Molecular, and Optical Physics

Hybrid Optical Pumping of Optically Dense Alkali-Metal Vapor without Quenching Gas

M. V. Romalis

Phys. Rev. Lett. 105, 243001 (2010) - Published 7 December, 2010

Direct Determination of the Magnetic Quadrupole Contribution to the Lyman- $α_{1}$ Transition in a Hydrogenlike Ion

G. Weber, H. Bräuning, A. Surzhykov, C. Brandau, S. Fritzsche, S. Geyer, S. Hagmann, S. Hess, C. Kozhuharov, R. Märtin, N. Petridis, R. Reuschl, U. Spillmann, S. Trotsenko, D. F. A. Winters, and Th. Stöhlker

Phys. Rev. Lett. 105, 243002 (2010) - Published 9 December, 2010

Measuring Energy Differences by BEC Interferometry on a Chip

Florian Baumgärtner, R. J. Sewell, S. Eriksson, I. Llorente-Garcia, Jos Dingjan, J. P. Cotter, and E. A. Hinds

Phys. Rev. Lett. 105, 243003 (2010) - Published 10 December, 2010

FEATURED IN PHYSICS

Synthesis of Cold Antihydrogen in a Cusp Trap

Phys. Rev. Lett. 105, 243401 (2010) - Published 7 December, 2010

Sequential Penning Ionization: Harvesting Energy with Ions

Harald Schöbel, Peter Bartl, Christian Leidlmair, Matthias Daxner, Samuel Zöttl, Stephan Denifl, Tilmann D. Märk, Paul Scheier, Daniel Spångberg, Andreas Mauracher, and Diethard K. Bohme

Phys. Rev. Lett. 105, 243402 (2010) - Published 9 December, 2010

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc.

Making Metals Transparent for White Light by Spoof Surface Plasmons

Xian-Rong Huang, Ru-Wen Peng, and Ren-Hao Fan

Phys. Rev. Lett. 105, 243901 (2010) - Published 7 December, 2010

Route to Attosecond Nonlinear Spectroscopy

F. Reiter, U. Graf, E. E. Serebryannikov, W. Schweinberger, M. Fiess, M. Schultze, A. M. Azzeer, R. Kienberger, F. Krausz, A. M. Zheltikov, and E. Goulielmakis

Phys. Rev. Lett. 105, 243902 (2010) - Published 10 December, 2010

Eigenvalue Densities of Real and Complex Wishart Correlation Matrices

Christian Recher, Mario Kieburg, and Thomas Guhr

Phys. Rev. Lett. 105, 244101 (2010) - Published 6 December, 2010

Noise-Enhanced Trapping in Chaotic Scattering

Eduardo G. Altmann and Antonio Endler

Phys. Rev. Lett. 105, 244102 (2010) - Published 9 December, 2010

Distribution- Versus Correlation-Induced Anomalous Transport in Quenched Random Velocity Fields

Marco Dentz and Diogo Bolster

Phys. Rev. Lett. 105, 244301 (2010) - Published 10 December, 2010

Ordered and Disordered Dynamics in Monolayers of Rolling Particles

Byungsoo Kim and Vakhtang Putkaradze

Phys. Rev. Lett. 105, 244302 (2010) - Published 10 December, 2010

Condensed Matter: Structure, etc.

In Situ Observation of Antisite Defect Formation during Crystal Growth

M. J. Kramer, M. I. Mendelev, and R. E. Napolitano

Phys. Rev. Lett. 105, 245501 (2010) - Published 7 December, 2010

Failure Mechanisms of Graphene under Tension

C. A. Marianetti and H. G. Yevick

Phys. Rev. Lett. 105, 245502 (2010) - Published 10 December, 2010

Reentrant and Isostructural Transitions in a Cluster-Crystal Former

Kai Zhang (张凯), Patrick Charbonneau, and Bianca M. Mladek

Phys. Rev. Lett. 105, 245701 (2010) - Published 9 December, 2010

Signature of Quantum Criticality in the Density Profiles of Cold Atom Systems

Qi Zhou and Tin-Lun Ho

Phys. Rev. Lett. 105, 245702 (2010) - Published 10 December, 2010

Capturing One-Dimensional Precursors of a Photoinduced Transformation in a Material

Laurent Guérin, Johan Hébert, Marylise Buron-Le Cointe, Shin-ichi Adachi, Shin-ya Koshihara, Hervé Cailleau, and Eric Collet

Phys. Rev. Lett. 105, 246101 (2010) - Published 8 December, 2010

Condensed Matter: Electronic Properties, etc.

Tunneling into Clean Heavy Fermion Compounds: Origin of the Fano Line Shape

P. Wölfle, Y. Dubi, and A. V. Balatsky

Phys. Rev. Lett. 105, 246401 (2010) - Published 6 December, 2010

Early-Stage Dynamics of Light-Matter Interaction Leading to the Insulator-to-Metal Transition in a Charge Ordered Organic Crystal

Y. Kawakami, T. Fukatsu, Y. Sakurai, H. Unno, H. Itoh, S. Iwai, T. Sasaki, K. Yamamoto, K. Yakushi, and K. Yonemitsu

Phys. Rev. Lett. 105, 246402 (2010) - Published 7 December, 2010

Quasi-Two-Dimensional Fermi Surfaces and Coherent Interlayer Transport in ${KFe}_{2} {As}_{2}$

M. Kimata, T. Terashima, N. Kurita, H. Satsukawa, A. Harada, K. Kodama, A. Sato, M. Imai, K. Kihou, C. H. Lee, H. Kito, H. Eisaki, A. Iyo, T. Saito, H. Fukazawa, Y. Kohori, H. Harima, and S. Uji

Phys. Rev. Lett. 105, 246403 (2010) - Published 8 December, 2010

Tandem Pairing in Heavy-Fermion Superconductors

Rebecca Flint and Piers Coleman

Phys. Rev. Lett. 105, 246404 (2010) - Published 8 December, 2010

Magnetoconductance Oscillations and Evidence for Fractional Quantum Hall States in Suspended Bilayer and Trilayer Graphene

Wenzhong Bao, Zeng Zhao, Hang Zhang, Gang Liu, Philip Kratz, Lei Jing, Jairo Velasco, Jr., Dmitry Smirnov, and Chun Ning Lau

Phys. Rev. Lett. 105, 246601 (2010) - Published 6 December, 2010

Anisotropic Spin Hall Effect from First Principles

Frank Freimuth, Stefan Blügel, and Yuriy Mokrousov

Phys. Rev. Lett. 105, 246602 (2010) - Published 6 December, 2010

EDITORS' SUGGESTION

Two-Dimensional Optical Control of Electron Spin Orientation by Linearly Polarized Light in InGaAs

K. Schmalbuch, S. Göbbels, Ph. Schäfers, Ch. Rodenbücher, P. Schlammes, Th. Schäpers, M. Lepsa, G. Güntherodt, and B. Beschoten

Phys. Rev. Lett. 105, 246603 (2010) - Published 7 December, 2010

Zero-Bias Anomalies in Narrow Tunnel Junctions in the Quantum Hall Regime

P. Jiang, C.-C. Chien, I. Yang, W. Kang, K. W. Baldwin, L. N. Pfeiffer, and K. W. West

Phys. Rev. Lett. 105, 246801 (2010) - Published 7 December, 2010

Observation of a Cyclotron Harmonic Spike in Microwave-Induced Resistances in Ultraclean $GaAs / AlGaAs$ Quantum Wells

Yanhua Dai, R. R. Du, L. N. Pfeiffer, and K. W. West

Phys. Rev. Lett. 105, 246802 (2010) - Published 7 December, 2010

Highly Anisotropic Dirac Cones in Epitaxial Graphene Modulated by an Island Superlattice

S. Rusponi, M. Papagno, P. Moras, S. Vlaic, M. Etzkorn, P. M. Sheverdyaeva, D. Pacilé, H. Brune, and C. Carbone

Phys. Rev. Lett. 105, 246803 (2010) - Published 7 December, 2010

Quantum Coherence in a One-Electron Semiconductor Charge Qubit

K. D. Petersson, J. R. Petta, H. Lu, and A. C. Gossard

Phys. Rev. Lett. 105, 246804 (2010) - Published 8 December, 2010

Fractional Quantum Hall Effect at High Fillings in a Two-Subband Electron System

J. Shabani, Y. Liu, and M. Shayegan

Phys. Rev. Lett. 105, 246805 (2010) - Published 9 December, 2010

Cascaded Optical Field Enhancement in Composite Plasmonic Nanostructures

V. G. Kravets, G. Zoriniants, C. P. Burrows, F. Schedin, C. Casiraghi, P. Klar, A. K. Geim, W. L. Barnes, and A. N. Grigorenko

Phys. Rev. Lett. 105, 246806 (2010) - Published 9 December, 2010

Geometric Correlations and Breakdown of Mesoscopic Universality in Spin Transport

İ. Adagideli, Ph. Jacquod, M. Scheid, M. Duckheim, D. Loss, and K. Richter

Phys. Rev. Lett. 105, 246807 (2010) - Published 10 December, 2010

Nonconventional Odd-Denominator Fractional Quantum Hall States in the Second Landau Level

A. Kumar, G. A. Csáthy, M. J. Manfra, L. N. Pfeiffer, and K. W. West

Phys. Rev. Lett. 105, 246808 (2010) - Published 10 December, 2010

Fractional Topological Insulators in Three Dimensions

Joseph Maciejko, Xiao-Liang Qi, Andreas Karch, and Shou-Cheng Zhang

Phys. Rev. Lett. 105, 246809 (2010) - Published 10 December, 2010

Anomalous High-Energy Spin Excitations in the High- $T_{c}$ Superconductor-Parent Antiferromagnet ${La}_{2} {CuO}_{4}$

N. S. Headings, S. M. Hayden, R. Coldea, and T. G. Perring

Phys. Rev. Lett. 105, 247001 (2010) - Published 7 December, 2010

Magnetic Breakdown in the Electron-Doped Cuprate Superconductor ${Nd}_{2 - x} {Ce}_{x} {CuO}_{4}$ : The Reconstructed Fermi Surface Survives in the Strongly Overdoped Regime

T. Helm, M. V. Kartsovnik, I. Sheikin, M. Bartkowiak, F. Wolff-Fabris, N. Bittner, W. Biberacher, M. Lambacher, A. Erb, J. Wosnitza, and R. Gross

Phys. Rev. Lett. 105, 247002 (2010) - Published 9 December, 2010

Theory and Experimental Realization of Negative Refraction in a Metallic Helix Array

Chao Wu, Hongqiang Li, Zeyong Wei, Xiaotong Yu, and C. T. Chan

Phys. Rev. Lett. 105, 247401 (2010) - Published 9 December, 2010

Tuning the Resonance in High-Temperature Superconducting Terahertz Metamaterials

Hou-Tong Chen, Hao Yang, Ranjan Singh, John F. O’Hara, Abul K. Azad, Stuart A. Trugman, Q. X. Jia, and Antoinette J. Taylor

Phys. Rev. Lett. 105, 247402 (2010) - Published 10 December, 2010

Soft Matter, Biological, and Interdisciplinary Physics

Reentrant Behavior of Divalent-Counterion-Mediated DNA-DNA Electrostatic Interaction

SeIl Lee, Tung T. Le, and Toan T. Nguyen

Phys. Rev. Lett. 105, 248101 (2010) - Published 6 December, 2010

Two-Dimensional X-Ray Grating Interferometer

Irene Zanette, Timm Weitkamp, Tilman Donath, Simon Rutishauser, and Christian David

Phys. Rev. Lett. 105, 248102 (2010) - Published 7 December, 2010

FEATURED IN PHYSICS

EDITORS' SUGGESTION

4D Traction Force Microscopy Reveals Asymmetric Cortical Forces in Migrating Dictyostelium Cells

H. Delanoë-Ayari, J. P. Rieu, and M. Sano

Phys. Rev. Lett. 105, 248103 (2010) - Published 7 December, 2010

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Sources and Sinks: A Stochastic Model of Evolution in Heterogeneous Environments

Rutger Hermsen and Terence Hwa

Phys. Rev. Lett. 105, 248104 (2010) - Published 8 December, 2010

Off-Lattice Monte Carlo Simulation of Supramolecular Polymer Architectures

H. E. Amuasi and C. Storm

Phys. Rev. Lett. 105, 248105 (2010) - Published 9 December, 2010

First-Principles Simulations of Chemical Reactions in an HCl Molecule Embedded inside a C or BN Nanotube Induced by Ultrafast Laser Pulses

Yoshiyuki Miyamoto, Hong Zhang, and Angel Rubio

Phys. Rev. Lett. 105, 248301 (2010) - Published 7 December, 2010

ERRATA

Erratum: Neutrino Signal of Electron-Capture Supernovae from Core Collapse to Cooling [Phys. Rev. Lett. 104, 251101 (2010)]

L. Hüdepohl, B. Müller, H.-T. Janka, A. Marek, and G. G. Raffelt

Phys. Rev. Lett. 105, 249901 (2010) - Published 10 December, 2010

Erratum: Equilibrium Magnetization at the Boundary of a Magnetoelectric Antiferromagnet [Phys. Rev. Lett. 105, 147204 (2010)]

K. D. Belashchenko

Phys. Rev. Lett. 105, 249902 (2010) - Published 10 December, 2010