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Constructions of knotted divergence-free vector fields with tunable helicity. From top left to bottom right: figure-8 knot, linked rings, trefoil knot, symmetric figure-8 knot, linked trefoil knot, and cable knot. Selected for an Editors’ Suggestion.

From the article:

Weaving Knotted Vector Fields with Tunable Helicity
Hridesh Kedia, David Foster, Mark R. Dennis, and William T. M. Irvine
Phys. Rev. Lett. 117, 274501 (2016)

HIGHLIGHTED ARTICLES

Anionic Hydrogen Cluster Ions as a New Form of Condensed Hydrogen

Michael Renzler, Martin Kuhn, Andreas Mauracher, Albrecht Lindinger, Paul Scheier, and Andrew M. Ellis

Phys. Rev. Lett. 117, 273001 (2016) - Published 27 December, 2016

Negatively charged hydrogen ion clusters—consisting of five or more hydrogen atoms—have been observed for the first time.

Coherence Times of Bose-Einstein Condensates beyond the Shot-Noise Limit via Superfluid Shielding

William Cody Burton, Colin J. Kennedy, Woo Chang Chung, Samarth Vadia, Wenlan Chen, and Wolfgang Ketterle

Phys. Rev. Lett. 117, 275301 (2016) - Published 28 December, 2016

Separated Bose-Einstein condensates can be shielded from external forces if immersed in a superfluid bath.

Colloidal Surfaces with Boundaries, Apex Boojums, and Nested Elastic Self-Assembly of Nematic Colloids

Sungoh Park, Qingkun Liu, and Ivan I. Smalyukh

Phys. Rev. Lett. 117, 277801 (2016) - Published 29 December, 2016

Whether topological defects form when a disk-shaped particle is placed in a liquid-crystal bath depends on the thickness of the particle.

Time-Resolved Imaging of Negative Differential Resistance on the Atomic Scale

Mohammad Rashidi, Marco Taucer, Isil Ozfidan, Erika Lloyd, Mohammad Koleini, Hatem Labidi, Jason L. Pitters, Joseph Maciejko, and Robert A. Wolkow

Phys. Rev. Lett. 117, 276805 (2016) - Published 30 December, 2016

Current flowing through a single silicon atom can be made to decrease with increasing voltage, potentially allowing the integration of a new type of component into microelectronic circuits.

Experimental Realization of a Thermal Squeezed State of Levitated Optomechanics

Muddassar Rashid, Tommaso Tufarelli, James Bateman, Jamie Vovrosh, David Hempston, M. S. Kim, and Hendrik Ulbricht

Phys. Rev. Lett. 117, 273601 (2016) - Published 30 December, 2016

Quickly oscillating between two trapping frequencies creates mechanical squeezing of the thermal motion of an optically levitated nanosphere.

Weaving Knotted Vector Fields with Tunable Helicity

Hridesh Kedia, David Foster, Mark R. Dennis, and William T. M. Irvine

Phys. Rev. Lett. 117, 274501 (2016) - Published 29 December, 2016

A prediction of divergence-free knotted vector fields from complex scalar fields has consequences for studies of magnetic fields in complex patterns.

LETTERS

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

Superdiffusive Dispersals Impart the Geometry of Underlying Random Walks

V. Zaburdaev, I. Fouxon, S. Denisov, and E. Barkai

Phys. Rev. Lett. 117, 270601 (2016) - Published 29 December, 2016

Gravitation and Astrophysics

Detecting Rotational Superradiance in Fluid Laboratories

Vitor Cardoso, Antonin Coutant, Mauricio Richartz, and Silke Weinfurtner

Phys. Rev. Lett. 117, 271101 (2016) - Published 29 December, 2016

Resonator with Ultrahigh Length Stability as a Probe for Equivalence-Principle-Violating Physics

E. Wiens, A. Yu. Nevsky, and S. Schiller

Phys. Rev. Lett. 117, 271102 (2016) - Published 29 December, 2016

Evaporation Spectrum of Black Holes from a Local Quantum Gravity Perspective

Aurélien Barrau

Phys. Rev. Lett. 117, 271301 (2016) - Published 28 December, 2016

Elementary Particles and Fields

Search for the Effect of Massive Bodies on Atomic Spectra and Constraints on Yukawa-Type Interactions of Scalar Particles

N. Leefer, A. Gerhardus, D. Budker, V. V. Flambaum, and Y. V. Stadnik

Phys. Rev. Lett. 117, 271601 (2016) - Published 29 December, 2016

Color-Kinematics Duality and Sudakov Form Factor at Five Loops for N=4 Supersymmetric Yang-Mills Theory

Gang Yang

Phys. Rev. Lett. 117, 271602 (2016) - Published 29 December, 2016

Nuclear Physics

Shape Coexistence in Ni78 as the Portal to the Fifth Island of Inversion

F. Nowacki, A. Poves, E. Caurier, and B. Bounthong

Phys. Rev. Lett. 117, 272501 (2016) - Published 27 December, 2016

Atomic, Molecular, and Optical Physics

Anionic Hydrogen Cluster Ions as a New Form of Condensed Hydrogen

Michael Renzler, Martin Kuhn, Andreas Mauracher, Albrecht Lindinger, Paul Scheier, and Andrew M. Ellis

Phys. Rev. Lett. 117, 273001 (2016) - Published 27 December, 2016

Negatively charged hydrogen ion clusters—consisting of five or more hydrogen atoms—have been observed for the first time.

Experimental Realization of a Thermal Squeezed State of Levitated Optomechanics

Muddassar Rashid, Tommaso Tufarelli, James Bateman, Jamie Vovrosh, David Hempston, M. S. Kim, and Hendrik Ulbricht

Phys. Rev. Lett. 117, 273601 (2016) - Published 30 December, 2016

Quickly oscillating between two trapping frequencies creates mechanical squeezing of the thermal motion of an optically levitated nanosphere.

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc.

Tapered Glass-Fiber Microspike: High-Q Flexural Wave Resonator and Optically Driven Knudsen Pump

Riccardo Pennetta, Shangran Xie, and Philip St.J. Russell

Phys. Rev. Lett. 117, 273901 (2016) - Published 29 December, 2016

Weaving Knotted Vector Fields with Tunable Helicity

Hridesh Kedia, David Foster, Mark R. Dennis, and William T. M. Irvine

Phys. Rev. Lett. 117, 274501 (2016) - Published 29 December, 2016

A prediction of divergence-free knotted vector fields from complex scalar fields has consequences for studies of magnetic fields in complex patterns.

Plasma and Beam Physics

Dependence of the Spectrum of Shock-Accelerated Ions on the Dynamics at the Shock Crossing

M. Gedalin, W. Dröge, and Y. Y. Kartavykh

Phys. Rev. Lett. 117, 275101 (2016) - Published 28 December, 2016

Condensed Matter: Structure, etc.

Coherence Times of Bose-Einstein Condensates beyond the Shot-Noise Limit via Superfluid Shielding

William Cody Burton, Colin J. Kennedy, Woo Chang Chung, Samarth Vadia, Wenlan Chen, and Wolfgang Ketterle

Phys. Rev. Lett. 117, 275301 (2016) - Published 28 December, 2016

Separated Bose-Einstein condensates can be shielded from external forces if immersed in a superfluid bath.

Core Structure and Non-Abelian Reconnection of Defects in a Biaxial Nematic Spin-2 Bose-Einstein Condensate

Magnus O. Borgh and Janne Ruostekoski

Phys. Rev. Lett. 117, 275302 (2016) - Published 29 December, 2016

Kibble-Zurek Mechanism in the Self-Organization of a Cold Atomic Cloud

G. Labeyrie and R. Kaiser

Phys. Rev. Lett. 117, 275701 (2016) - Published 28 December, 2016

Itinerant Conductance in Fuse-Antifuse Networks

Cesar I. N. Sampaio Filho, André A. Moreira, Nuno A. M. Araújo, José S. Andrade, Jr, and Hans J. Herrmann

Phys. Rev. Lett. 117, 275702 (2016) - Published 29 December, 2016

First-Principles Free-Energy Barriers for Photoelectrochemical Surface Reactions: Proton Abstraction at TiO2(110)

Thomas Stecher, Karsten Reuter, and Harald Oberhofer

Phys. Rev. Lett. 117, 276001 (2016) - Published 29 December, 2016

Anomalous Lattice Dynamics of EuSi2 Nanoislands: Role of Interfaces Unveiled

A. Seiler, P. Piekarz, S. Ibrahimkutty, D. G. Merkel, O. Waller, R. Pradip, A. I. Chumakov, R. Rüffer, T. Baumbach, K. Parlinski, M. Fiederle, and S. Stankov

Phys. Rev. Lett. 117, 276101 (2016) - Published 28 December, 2016

Si Nanoribbons on Ag(110) Studied by Grazing-Incidence X-Ray Diffraction, Scanning Tunneling Microscopy, and Density-Functional Theory: Evidence of a Pentamer Chain Structure

Geoffroy Prévot, Conor Hogan, Thomas Leoni, Romain Bernard, Eric Moyen, and Laurence Masson

Phys. Rev. Lett. 117, 276102 (2016) - Published 28 December, 2016

Condensed Matter: Electronic Properties, etc.

Two-Step Phase Transition in SnSe and the Origins of its High Power Factor from First Principles

Antoine Dewandre, Olle Hellman, Sandip Bhattacharya, Aldo H. Romero, Georg K. H. Madsen, and Matthieu J. Verstraete

Phys. Rev. Lett. 117, 276601 (2016) - Published 30 December, 2016

Graphene Nanobubbles as Valley Filters and Beam Splitters

Mikkel Settnes, Stephen R. Power, Mads Brandbyge, and Antti-Pekka Jauho

Phys. Rev. Lett. 117, 276801 (2016) - Published 28 December, 2016

Noncollinear Spin-Orbit Magnetic Fields in a Carbon Nanotube Double Quantum Dot

M. C. Hels, B. Braunecker, K. Grove-Rasmussen, and J. Nygård

Phys. Rev. Lett. 117, 276802 (2016) - Published 28 December, 2016

Charge Transport by Superexchange in Molecular Host-Guest Systems

Franz Symalla, Pascal Friederich, Andrea Massé, Velimir Meded, Reinder Coehoorn, Peter Bobbert, and Wolfgang Wenzel

Phys. Rev. Lett. 117, 276803 (2016) - Published 29 December, 2016

Suppression of Interference in Quantum Hall Mach-Zehnder Geometry by Upstream Neutral Modes

Moshe Goldstein and Yuval Gefen

Phys. Rev. Lett. 117, 276804 (2016) - Published 29 December, 2016

Time-Resolved Imaging of Negative Differential Resistance on the Atomic Scale

Mohammad Rashidi, Marco Taucer, Isil Ozfidan, Erika Lloyd, Mohammad Koleini, Hatem Labidi, Jason L. Pitters, Joseph Maciejko, and Robert A. Wolkow

Phys. Rev. Lett. 117, 276805 (2016) - Published 30 December, 2016

Current flowing through a single silicon atom can be made to decrease with increasing voltage, potentially allowing the integration of a new type of component into microelectronic circuits.

Slow Interatomic Coulombic Decay of Multiply Excited Neon Clusters

D. Iablonskyi et al.

Phys. Rev. Lett. 117, 276806 (2016) - Published 30 December, 2016

Enhancement of the Superconducting Gap by Nesting in CaKFe4As4: A New High Temperature Superconductor

Daixiang Mou, Tai Kong, William R. Meier, Felix Lochner, Lin-Lin Wang, Qisheng Lin, Yun Wu, S. L. Bud’ko, Ilya Eremin, D. D. Johnson, P. C. Canfield, and Adam Kaminski

Phys. Rev. Lett. 117, 277001 (2016) - Published 28 December, 2016

Hourglass Dispersion and Resonance of Magnetic Excitations in the Superconducting State of the Single-Layer Cuprate HgBa2CuO4+δ Near Optimal Doping

M. K. Chan, Y. Tang, C. J. Dorow, J. Jeong, L. Mangin-Thro, M. J. Veit, Y. Ge, D. L. Abernathy, Y. Sidis, P. Bourges, and M. Greven

Phys. Rev. Lett. 117, 277002 (2016) - Published 29 December, 2016

Generation and Evolution of Spin-, Valley-, and Layer-Polarized Excited Carriers in Inversion-Symmetric WSe2

R. Bertoni, C. W. Nicholson, L. Waldecker, H. Hübener, C. Monney, U. De Giovannini, M. Puppin, M. Hoesch, E. Springate, R. T. Chapman, C. Cacho, M. Wolf, A. Rubio, and R. Ernstorfer

Phys. Rev. Lett. 117, 277201 (2016) - Published 30 December, 2016

Honeycomb-Lattice Heisenberg-Kitaev Model in a Magnetic Field: Spin Canting, Metamagnetism, and Vortex Crystals

Lukas Janssen, Eric C. Andrade, and Matthias Vojta

Phys. Rev. Lett. 117, 277202 (2016) - Published 30 December, 2016

Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect

André Bisig, Collins Ashu Akosa, Jung-Hwan Moon, Jan Rhensius, Christoforos Moutafis, Arndt von Bieren, Jakoba Heidler, Gillian Kiliani, Matthias Kammerer, Michael Curcic, Markus Weigand, Tolek Tyliszczak, Bartel Van Waeyenberge, Hermann Stoll, Gisela Schütz, Kyung-Jin Lee, Aurelien Manchon, and Mathias Kläui

Phys. Rev. Lett. 117, 277203 (2016) - Published 30 December, 2016

Exploiting Vibrational Strong Coupling to Make an Optical Parametric Oscillator Out of a Raman Laser

Javier del Pino, Francisco J. Garcia-Vidal, and Johannes Feist

Phys. Rev. Lett. 117, 277401 (2016) - Published 29 December, 2016

Subcycle Optical Response Caused by a Terahertz Dressed State with Phase-Locked Wave Functions

K. Uchida, T. Otobe, T. Mochizuki, C. Kim, M. Yoshita, H. Akiyama, L. N. Pfeiffer, K. W. West, K. Tanaka, and H. Hirori

Phys. Rev. Lett. 117, 277402 (2016) - Published 30 December, 2016

Polymer, Soft Matter, Biological, Climate, and Interdisciplinary Physics

Colloidal Surfaces with Boundaries, Apex Boojums, and Nested Elastic Self-Assembly of Nematic Colloids

Sungoh Park, Qingkun Liu, and Ivan I. Smalyukh

Phys. Rev. Lett. 117, 277801 (2016) - Published 29 December, 2016

Whether topological defects form when a disk-shaped particle is placed in a liquid-crystal bath depends on the thickness of the particle.

COMMENTS

Comment on “Clustering of Oxygen Vacancies at CeO2(111): Critical Role of Hydroxyls”

Matthew J. Wolf, Jolla Kullgren, and Kersti Hermansson

Phys. Rev. Lett. 117, 279601 (2016) - Published 30 December, 2016

Wu and Gong Reply:

Xin-Ping Wu and Xue-Qing Gong

Phys. Rev. Lett. 117, 279602 (2016) - Published 30 December, 2016

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