Volume 93, Issue 8

20 August 2004

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On the Cover

The image shows a single crystal of the magnetic insulator BaCuSi₂O₆ as seen through an optical microscope. Also known as Han Purple and synthesized for use as a pigment 2000 years ago by the Chinese, this compound has a quasi-2D structure that plays an important role in the realization of Bose-Einstein condensation of spin-triplet excitations in an external magnetic field.

From the article:

Magnetic-Field-Induced Condensation of Triplons in Han Purple Pigment ${B a C u S i}_{2} O_{6}$
M. Jaime, V. F. Correa, N. Harrison, C. D. Batista, N. Kawashima, Y. Kazuma, G. A. Jorge, R. Stern, I. Heinmaa, S. A. Zvyagin, Y. Sasago, and K. Uchinokura
Phys. Rev. Lett. 93, 087203 (2004)

LETTERS

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

Spectroscopy of Superfluid Pairing in Atomic Fermi Gases

H. P. Büchler, P. Zoller, and W. Zwerger

Phys. Rev. Lett. 93, 080401 (2004) - Published 16 August, 2004

Existence of Temperature on the Nanoscale

Michael Hartmann, Günter Mahler, and Ortwin Hess

Phys. Rev. Lett. 93, 080402 (2004) - Published 19 August, 2004

Three-Dimensional Solitary Waves and Vortices in a Discrete Nonlinear Schrödinger Lattice

P. G. Kevrekidis, B. A. Malomed, D. J. Frantzeskakis, and R. Carretero-González

Phys. Rev. Lett. 93, 080403 (2004) - Published 19 August, 2004

Single-Atom Density of States of an Optical Lattice

Chris Hooley and Jorge Quintanilla

Phys. Rev. Lett. 93, 080404 (2004) - Published 19 August, 2004

Kinematic Approach to the Mixed State Geometric Phase in Nonunitary Evolution

D. M. Tong, E. Sjöqvist, L. C. Kwek, and C. H. Oh

Phys. Rev. Lett. 93, 080405 (2004) - Published 20 August, 2004

Experimental Observation of the Tilting Mode of an Array of Vortices in a Dilute Bose-Einstein Condensate

N. L. Smith, W. H. Heathcote, J. M. Krueger, and C. J. Foot

Phys. Rev. Lett. 93, 080406 (2004) - Published 20 August, 2004

Relating Quantum Privacy and Quantum Coherence: An Operational Approach

I. Devetak and A. Winter

Phys. Rev. Lett. 93, 080501 (2004) - Published 19 August, 2004

Quantum Process Tomography of a Controlled-NOT Gate

J. L. O'Brien, G. J. Pryde, A. Gilchrist, D. F. V. James, N. K. Langford, T. C. Ralph, and A. G. White

Phys. Rev. Lett. 93, 080502 (2004) - Published 20 August, 2004

Fermionic Field Theory for Trees and Forests

Sergio Caracciolo, Jesper Lykke Jacobsen, Hubert Saleur, Alan D. Sokal, and Andrea Sportiello

Phys. Rev. Lett. 93, 080601 (2004) - Published 20 August, 2004

Gravitation and Astrophysics

Gluing Initial Data Sets for General Relativity

Piotr T. Chruściel, James Isenberg, and Daniel Pollack

Phys. Rev. Lett. 93, 081101 (2004) - Published 18 August, 2004

Explosive Hydrogen Burning of ${}^{17}O$ in Classical Novae

C. Fox, C. Iliadis, A. E. Champagne, A. Coc, J. José, R. Longland, J. Newton, J. Pollanen, and R. Runkle

Phys. Rev. Lett. 93, 081102 (2004) - Published 18 August, 2004

Proposed New Test of Spin Effects in General Relativity

R. F. O'Connell

Phys. Rev. Lett. 93, 081103 (2004) - Published 20 August, 2004

Initial Conditions of the Universe: How Much Isocurvature is Allowed?

M. Bucher, J. Dunkley, P. G. Ferreira, K. Moodley, and C. Skordis

Phys. Rev. Lett. 93, 081301 (2004) - Published 20 August, 2004

Low Reheating Temperature and the Visible Sterile Neutrino

Graciela Gelmini, Sergio Palomares-Ruiz, and Silvia Pascoli

Phys. Rev. Lett. 93, 081302 (2004) - Published 20 August, 2004

Elementary Particles and Fields

Bound on the Ratio of Decay Amplitudes for ${\bar{B}}^{0} \to J / ψ K^{* 0}$ and $B^{0} \to J / ψ K^{* 0}$

B. Aubert et al. (The BABAR Collaboration)

Phys. Rev. Lett. 93, 081801 (2004) - Published 18 August, 2004

Measurement of the $B \to X_{s} ℓ^{+} ℓ^{-}$ Branching Fraction with a Sum over Exclusive Modes

B. Aubert et al. (BABAR Collaboration)

Phys. Rev. Lett. 93, 081802 (2004) - Published 19 August, 2004

Search for the Lepton-Flavor-Violating Decay $τ^{-} \to μ^{-} η$ at Belle

Y. Enari et al. (Belle Collaboration)

Phys. Rev. Lett. 93, 081803 (2004) - Published 19 August, 2004

Nuclear Physics

Pseudorapidity Distribution of Charged Particles in $d + A u$ Collisions at $\sqrt{s_{N N}} = 200 G e V$

B. B. Back et al. (PHOBOS Collaboration)

Phys. Rev. Lett. 93, 082301 (2004) - Published 16 August, 2004

Final-State Interaction as the Origin of the Cronin Effect

Rudolph C. Hwa and C. B. Yang

Phys. Rev. Lett. 93, 082302 (2004) - Published 20 August, 2004

Identifying Neutrinos and Antineutrinos in Neutral-Current ScatteringReactions

N. Jachowicz, K. Vantournhout, J. Ryckebusch, and K. Heyde

Phys. Rev. Lett. 93, 082501 (2004) - Published 16 August, 2004

Unveiling the Origin of Shape Coexistence in Lead Isotopes

J. L. Egido, L. M. Robledo, and R. R. Rodríguez-Guzmán

Phys. Rev. Lett. 93, 082502 (2004) - Published 18 August, 2004

Atomic, Molecular, and Optical Physics

First-Order Superradiant Phase Transitions in a Multiqubit Cavity System

Chiu Fan Lee and Neil F. Johnson

Phys. Rev. Lett. 93, 083001 (2004) - Published 18 August, 2004

Vibrationally Resolved $K$ -shell Photoionization of CO with Circularly Polarized Light

T. Jahnke, L. Foucar, J. Titze, R. Wallauer, T. Osipov, E. P. Benis, A. Alnaser, O. Jagutzki, W. Arnold, S. K. Semenov, N. A. Cherepkov, L. Ph. H. Schmidt, A. Czasch, A. Staudte, M. Schöffler, C. L. Cocke, M. H. Prior, H. Schmidt-Böcking, and R. Dörner

Phys. Rev. Lett. 93, 083002 (2004) - Published 19 August, 2004

Ionization and Recombination in Intense, Short Electric Field Pulses

Darko Dimitrovski, Eugene A Solov’ev, and John S Briggs

Phys. Rev. Lett. 93, 083003 (2004) - Published 19 August, 2004

Interpretation of Quantum and Classical Angular Momentum Polarization Moments

Marcelo P. de Miranda and F. Javier Aoiz

Phys. Rev. Lett. 93, 083201 (2004) - Published 19 August, 2004

Self-Synchronization and Dissipation-Induced Threshold in Collective Atomic Recoil Lasing

C. von Cube, S. Slama, D. Kruse, C. Zimmermann, Ph. W. Courteille, G. R. M. Robb, N. Piovella, and and R. Bonifacio

Phys. Rev. Lett. 93, 083601 (2004) - Published 16 August, 2004

Muonic Molecules in Superintense Laser Fields

Szczepan Chelkowski, André D. Bandrauk, and Paul B. Corkum

Phys. Rev. Lett. 93, 083602 (2004) - Published 20 August, 2004

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc.

Hall Effect of Light

Masaru Onoda, Shuichi Murakami, and Naoto Nagaosa

Phys. Rev. Lett. 93, 083901 (2004) - Published 18 August, 2004

Optimal Dispersion Relations for Enhanced Electromagnetic Power Deposition in Dissipative Slabs

D. Razansky, P. D. Einziger, and D. R. Adam

Phys. Rev. Lett. 93, 083902 (2004) - Published 18 August, 2004

Observation of Two-Photon Above-Threshold Ionization of Rare Gases by xuv Harmonic Photons

Naoki Miyamoto, Masato Kamei, Dai Yoshitomi, Teruto Kanai, Taro Sekikawa, Takashi Nakajima, and Shuntaro Watanabe

Phys. Rev. Lett. 93, 083903 (2004) - Published 19 August, 2004

Kerr-Nonlinearity Optical Parametric Oscillation in an Ultrahigh- $Q$ Toroid Microcavity

T. J. Kippenberg, S. M. Spillane, and K. J. Vahala

Phys. Rev. Lett. 93, 083904 (2004) - Published 19 August, 2004

Controlled Generation and Steering of Spatial Gap Solitons

Dragomir Neshev, Andrey A. Sukhorukov, Brendan Hanna, Wieslaw Krolikowski, and Yuri S. Kivshar

Phys. Rev. Lett. 93, 083905 (2004) - Published 19 August, 2004

Generalized Synchronization of Spatiotemporal Chaos in a Liquid Crystal Spatial Light Modulator

Elizabeth A. Rogers, Rita Kalra, Robert D. Schroll, Atsushi Uchida, Daniel P. Lathrop, and Rajarshi Roy

Phys. Rev. Lett. 93, 084101 (2004) - Published 17 August, 2004

Mechanism of Desynchronization in the Finite-Dimensional Kuramoto Model

Yu. Maistrenko, O. Popovych, O. Burylko, and P. A. Tass

Phys. Rev. Lett. 93, 084102 (2004) - Published 19 August, 2004

Capture into Resonance: A Method for Efficient Control

Dmitri Vainchtein and Igor Mezić

Phys. Rev. Lett. 93, 084301 (2004) - Published 20 August, 2004

Strouhal-Reynolds Number Relationship for Vortex Streets

Fernando L. Ponta and Hassan Aref

Phys. Rev. Lett. 93, 084501 (2004) - Published 18 August, 2004

Self-Assembly and Vortices Formed by Microparticles in Weak Electrolytes

M. V. Sapozhnikov, I. S. Aranson, W.-K. Kwok, and Y. V. Tolmachev

Phys. Rev. Lett. 93, 084502 (2004) - Published 20 August, 2004

Plasma and Beam Physics

Experimental Determination of Dust-Particle Charge in a Discharge Plasma at Elevated Pressures

S. Ratynskaia, S. Khrapak, A. Zobnin, M. H. Thoma, M. Kretschmer, A. Usachev, V. Yaroshenko, R. A. Quinn, G. E. Morfill, O. Petrov, and V. Fortov

Phys. Rev. Lett. 93, 085001 (2004) - Published 17 August, 2004

Alpha-Channeling Simulation Experiment in the DIII-D Tokamak

K. L. Wong, R. Budny, R. Nazikian, C. C. Petty, C. M. Greenfield, W. W. Heidbrink, and E. Ruskov

Phys. Rev. Lett. 93, 085002 (2004) - Published 17 August, 2004

Mode Transition Induced by Low-Frequency Current in Dual-Frequency Capacitive Discharges

H. C. Kim and J. K. Lee

Phys. Rev. Lett. 93, 085003 (2004) - Published 19 August, 2004

Condensed Matter: Structure, etc.

Dislocation Nucleation in Shocked fcc Solids: Effects of Temperature and Preexisting Voids

Takahiro Hatano

Phys. Rev. Lett. 93, 085501 (2004) - Published 19 August, 2004

Mechanisms for Liquid Slip at Solid Surfaces

Seth Lichter, Alex Roxin, and Shreyas Mandre

Phys. Rev. Lett. 93, 086001 (2004) - Published 20 August, 2004

Growth of Unidirectional Molecular Rows of Cysteine on $A u (110) − (1 \times 2)$ Driven by Adsorbate-Induced Surface Rearrangements

A. Kühnle, L. M. Molina, T. R. Linderoth, B. Hammer, and F. Besenbacher

Phys. Rev. Lett. 93, 086101 (2004) - Published 16 August, 2004

Reaction of the Oxygen Molecule at the $S i (100) − S i O_{2}$ Interface During Silicon Oxidation

Angelo Bongiorno and Alfredo Pasquarello

Phys. Rev. Lett. 93, 086102 (2004) - Published 16 August, 2004

Novel Local Free Energy Minimum on the Cu(001) Surface

Mikhail Ovsyanko, Georgiana Stoian, Herbert Wormeester, and Bene Poelsema

Phys. Rev. Lett. 93, 086103 (2004) - Published 17 August, 2004

Nonlocality and Short-Range Wetting Phenomena

A. O. Parry, J. M. Romero-Enrique, and A. Lazarides

Phys. Rev. Lett. 93, 086104 (2004) - Published 17 August, 2004

Molecular Chemisorption as the Theoretically Preferred Pathway for Water Adsorption on Ideal Rutile ${T i O}_{2} (110)$

Leonard A. Harris and Andrew A. Quong

Phys. Rev. Lett. 93, 086105 (2004) - Published 19 August, 2004

Kosterlitz-Thouless Transition for ${}^{4}{H e}$ Films Adsorbed to Rough Surfaces

D. R. Luhman and R. B. Hallock

Phys. Rev. Lett. 93, 086106 (2004) - Published 19 August, 2004

Determination of the Local Concentrations of Mn Interstitials and Antisite Defects in $G a M n A s$

F. Glas, G. Patriarche, L. Largeau, and A. Lemaître

Phys. Rev. Lett. 93, 086107 (2004) - Published 19 August, 2004

Condensed Matter: Electronic Properties, etc.

Nonlocal Coulomb Interactions and Metal-Insulator Transition in ${T i}_{2} O_{3}$ : A Cluster $L D A + D M F T$ Approach

A. I. Poteryaev, A. I. Lichtenstein, and G. Kotliar

Phys. Rev. Lett. 93, 086401 (2004) - Published 16 August, 2004

Entanglement and Quantum Phase Transition in the Extended Hubbard Model

Shi-Jian Gu, Shu-Sa Deng, You-Quan Li, and Hai-Qing Lin

Phys. Rev. Lett. 93, 086402 (2004) - Published 17 August, 2004

Electronic Structure of Bases in DNA Duplexes Characterized byResonant Photoemission Spectroscopy Near the Fermi Level

H. S. Kato, M. Furukawa, M. Kawai, M. Taniguchi, T. Kawai, T. Hatsui, and N. Kosugi

Phys. Rev. Lett. 93, 086403 (2004) - Published 19 August, 2004

Direct Generation of a Voltage and Current by Gas Flow Over Carbon Nanotubes and Semiconductors

A. K. Sood and Shankar Ghosh

Phys. Rev. Lett. 93, 086601 (2004) - Published 17 August, 2004

Intrinsic Charge Transport on the Surface of Organic Semiconductors

V. Podzorov, E. Menard, A. Borissov, V. Kiryukhin, J. A. Rogers, and M. E. Gershenson

Phys. Rev. Lett. 93, 086602 (2004) - Published 20 August, 2004

Localization and Nonlinear Resistance in Telescopically Extended Nanotubes

John Cumings and A. Zettl

Phys. Rev. Lett. 93, 086801 (2004) - Published 18 August, 2004

Amorphouslike Density of Gap States in Single-Crystal Pentacene

D. V. Lang, X. Chi, T. Siegrist, A. M. Sergent, and A. P. Ramirez

Phys. Rev. Lett. 93, 086802 (2004) - Published 19 August, 2004

Spin Uncoupling in Free Nb Clusters: Support for Nascent Superconductivity

Ramiro Moro, Shuangye Yin, Xiaoshan Xu, and Walt A. de Heer

Phys. Rev. Lett. 93, 086803 (2004) - Published 20 August, 2004

Ratchetlike Dynamics of Fluxons in Annular Josephson Junctions Driven by Biharmonic Microwave Fields

A. V. Ustinov, C. Coqui, A. Kemp, Y. Zolotaryuk, and M. Salerno

Phys. Rev. Lett. 93, 087001 (2004) - Published 16 August, 2004

Electronic Transport in Underdoped ${Y B a}_{2} {C u}_{3} O_{7 - δ}$ Nanowires: Evidence for Fluctuating Domain Structures

J. A. Bonetti, D. S. Caplan, D. J. Van Harlingen, and M. B. Weissman

Phys. Rev. Lett. 93, 087002 (2004) - Published 17 August, 2004

Probing Decoherence with Electromagnetically Induced Transparency in Superconductive Quantum Circuits

K. V. R. M. Murali, Z. Dutton, W. D. Oliver, D. S. Crankshaw, and T. P. Orlando

Phys. Rev. Lett. 93, 087003 (2004) - Published 17 August, 2004

Enhancement of Josephson Phase Diffusion by Microwaves

Y. Koval, M. V. Fistul, and A. V. Ustinov

Phys. Rev. Lett. 93, 087004 (2004) - Published 19 August, 2004

Spin and Charge Pumping by Ferromagnetic-Superconductor Order Parameters

Arne Brataas and Yaroslav Tserkovnyak

Phys. Rev. Lett. 93, 087201 (2004) - Published 16 August, 2004

Spinons in the Strongly Correlated Copper Oxide Chains in ${S r C u O}_{2}$

I. A. Zaliznyak, H. Woo, T. G. Perring, C. L. Broholm, C. D. Frost, and H. Takagi

Phys. Rev. Lett. 93, 087202 (2004) - Published 16 August, 2004

Magnetic-Field-Induced Condensation of Triplons in Han Purple Pigment ${B a C u S i}_{2} O_{6}$

M. Jaime, V. F. Correa, N. Harrison, C. D. Batista, N. Kawashima, Y. Kazuma, G. A. Jorge, R. Stern, I. Heinmaa, S. A. Zvyagin, Y. Sasago, and K. Uchinokura

Phys. Rev. Lett. 93, 087203 (2004) - Published 18 August, 2004