Thursday, April 2, 2015

Nature Physics April Issue

If you are unable to see the message below, click here to view.
Nature Physics

TABLE OF CONTENTS

April 2015 Volume 11, Issue 4

Editorial
Commentaries
Thesis
Research Highlights
News and Views
Review
Letters
Articles
Erratum
Futures


Subscribe
 
Facebook
 
RSS
 
Recommend to library
 
Twitter
 
Advertisement
Open for Submissions

A new open access, online-only, multidisciplinary research journal dedicated to publishing the most important scientific advances in the life sciences, physical sciences, and engineering fields that are facilitated by spaceflight and analogue platforms.

Explore the benefits of submitting your next research article: http://bit.ly/1olVyvc
 

Editorial

Top

Getting there   p289
doi:10.1038/nphys3312
In our editorial in the April 2007 issue of Nature Physics we looked at the claim of the first demonstration of a commercial quantum computer — D-Wave's 16-qubit Orion. Eight years later, we ponder whether quantum technologies have really become commercial.

Commentaries

Top

Read the fine print   pp291 - 293
Scott Aaronson
doi:10.1038/nphys3272
New quantum algorithms promise an exponential speed-up for machine learning, clustering and finding patterns in big data. But to achieve a real speed-up, we need to delve into the details.

Quantum optics route to market   pp293 - 295
Jürgen Stuhler
doi:10.1038/nphys3292
Research in quantum optics has already led to commercial technologies, but the gap between the lab and market products is still large. Looking from the industrial side, one can see ways of bridging this gap.

Thesis

Top

Wheat from the chaff   p296
Mark Buchanan
doi:10.1038/nphys3296

Research Highlights

Top

To pinch a cloud | Quantum biometrology | On the interface of it | Balls and feathers | Head first

News and Views

Top

Fractional quantum hall effect: Even denominators in odd places   pp298 - 299
Cory R. Dean
doi:10.1038/nphys3298
Odd-denominator fractional quantum Hall states are routinely observed in high-mobility gallium arsenide heterostructures. Now, a 5/2 state has been observed in an oxide heterostructure — an unexpected state in an unexpected material.

See also: Article by Falson et al.

Microfluidics: Mix mastery   p299
Abigail Klopper
doi:10.1038/nphys3301

Organic semiconductors: The birth of an exciton   pp300 - 301
Troy Van Voorhis
doi:10.1038/nphys3290
The photons that make up visible light are indivisible. But certain organic materials can use singlet fission to divide the energy from one photon equally between two molecules. Experiments now reveal the molecular dynamics behind this phenomenon.

See also: Article by Musser et al.

Ultracold atoms: The quantum distillery   pp301 - 302
Trey Porto
doi:10.1038/nphys3268
Selective evaporation of one component from a mixture is a common process, but in the case of ultracold atomic gases, distillation is more complex.

See also: Letter by Xia et al.

Quantum gravity: Spacetime fuzziness in focus   pp302 - 303
Agnieszka Jacholkowska
doi:10.1038/nphys3293
Photons emitted by extragalactic sources provide an opportunity to test quantum gravity effects that modify the speed of light in vacuum. Studying the arrival times of these cosmic messengers further constrains the energy scales involved.

See also: Letter by Vasileiou et al.

Nuclear physics: Two more or less   pp303 - 304
Jorge Piekarewicz
doi:10.1038/nphys3299
A recent experiment has provided tantalizing evidence in favour of the elusive 'giant pairing vibration' — an exotic excitation of the atomic nucleus.

Ten years of Nature Physics: Go with the flow   pp305 - 306
Piotr Garstecki and Robert Holyst
doi:10.1038/nphys3297
A 2006 Nature Physics paper reported phonons in a one-dimensional crystal of aqueous droplets traversing a laminar oil flow — putting microfluidics on the map as a tool for unravelling the mechanisms behind regularity in thermodynamically open systems.

Physics
JOBS of the week
Post-doctoral positions in Attosecond Physics
Stanford University
Lectureship in Applied Mathematics or Theoretical / Mathematical Physics
University of Bristol
PhD student in Theoretical Physics (Combustion)
Umeå University
PhD positions (m / f) in Biological Physics
Max Planck Institute for Dynamics and Self-Organization
PhD in Physics
University of Nice Sophia Antipolis
More Science jobs from
Physics
EVENT
Imaging, focusing and sensing in wave physics
25th May 2015
Cargèse, France
More science events from

Review

Top

Superconducting spintronics   pp307 - 315
Jacob Linder and Jason W. A. Robinson
doi:10.1038/nphys3242
The discovery of spin-triplet Cooper pairs at superconductor/ferromagnet interfaces provides a route for combining superconducting and magnetic orders. Recent advances and challenges in the field of superconducting spintronics are now reviewed.

Letters

Top

Quantum distillation and confinement of vacancies in a doublon sea   pp316 - 320
Lin Xia, Laura A. Zundel, Juan Carrasquilla, Aaron Reinhard, Joshua M. Wilson et al.
doi:10.1038/nphys3244
An experiment reveals the dynamics of singly and doubly occupied sites in an atomic Bose gas in a one-dimensional optical lattice, which may provide a better understanding of thermalization and quantum correlations in many-body systems.

See also: News and Views by Porto

Modulated magnetism in PrPtAl   pp321 - 327
Gino Abdul-Jabbar, Dmitry A. Sokolov, Christopher D. O'Neill, Christopher Stock, Didier Wermeille et al.
doi:10.1038/nphys3238
A comprehensive experimental investigation of a PrPtAl single crystal concludes that it displays modulated magnetic order driven by quantum critical phenomena.

Orbital textures and charge density waves in transition metal dichalcogenides   pp328 - 331
T. Ritschel, J. Trinckauf, K. Koepernik, B. Buüchner, M. v. Zimmermann et al.
doi:10.1038/nphys3267
A theoretical and experimental study reveals the relation between charge density waves and orbital textures for different stackings in a two-dimensional layered material.

Direct observation of Josephson vortex cores   pp332 - 337
Dimitri Roditchev, Christophe Brun, Lise Serrier-Garcia, Juan Carlos Cuevas, Vagner Henrique Loiola Bessa et al.
doi:10.1038/nphys3240
Josephson vortices are circulating supercurrents with an inner structure that is challenging to probe experimentally. Scanning tunnelling microscopy now shows that such vortices contain non-superconducting cores.

Subnanometre-wide electron channels protected by topology   pp338 - 343
Christian Pauly, Bertold Rasche, Klaus Koepernik, Marcus Liebmann, Marco Pratzer et al.
doi:10.1038/nphys3264
Topologically protected states with a natural helicity are shown to form at step edges, which can be created with subnanometre precision in a weak topological insulator using atomic force microscopy.

A Planck-scale limit on spacetime fuzziness and stochastic Lorentz invariance violation   pp344 - 346
Vlasios Vasileiou, Jonathan Granot, Tsvi Piran and Giovanni Amelino-Camelia
doi:10.1038/nphys3270
Gamma-ray bursts can be used to test for the presence of spacetime foam—postulated in theories of quantum gravity. Quantum fluctuations would cause the photon speeds to vary, leading to 'fuzziness' and, consequently, Lorentz invariance violation.

See also: News and Views by Jacholkowska

Articles

Top

Even-denominator fractional quantum Hall physics in ZnO   pp347 - 351
J. Falson, D. Maryenko, B. Friess, D. Zhang, Y. Kozuka et al.
doi:10.1038/nphys3259
The fractional quantum Hall effect, occurring for rational Landau-level filling factors, is commonly observed in GaAs heterostructures. Now, unusual even-denominator fractional quantum Hall states are reported for an oxide 2D electron system.

See also: News and Views by Dean

Evidence for conical intersection dynamics mediating ultrafast singlet exciton fission   pp352 - 357
Andrew J. Musser, Matz Liebel, Christoph Schnedermann, Torsten Wende, Tom B. Kehoe et al.
doi:10.1038/nphys3241
A vibrational wavepacket generated in a spin singlet is shown to be transferable to spin triplets during singlet fission in organic semiconductors, providing a link between multi-molecular singlet fission and single-molecular internal conversion.

See also: News and Views by Van Voorhis

Triggering extreme events at the nanoscale in photonic seas   pp358 - 363
C. Liu, R. E. C. van der Wel, N. Rotenberg, L. Kuipers, T. F. Krauss et al.
doi:10.1038/nphys3263
Rogue waves in a sea of photons can localize light beyond the diffraction limit, but their rarity makes them difficult to study. These events can now be controllably triggered in a photonic crystal resonator.

Erratum

Top

Erratum: Visualization of geometric influences on proximity effects in heterogeneous superconductor thin films   p363
Jungdae Kim, Victor Chua, Gregory A. Fiete, Hyoungdo Nam, Allan H. MacDonald et al.
doi:10.1038/nphys3300

Futures

Top

Better late   p364
J. Kyle Turner
doi:10.1038/nphys3310
A wealth of possibilities.

Top
Advertisement
Don't let your data go to waste...
 
Scientific Data helps researchers make the most of their data, offering publication in a peer reviewed open access journal. We welcome data of all sizes, from all areas of science. What's unique? A new type of article providing detailed descriptions of scientifically valuable datasets, maximising data discoverability and reuse. 

Discover what we can do for your data
 
 
nature events
Natureevents is a fully searchable, multi-disciplinary database designed to maximise exposure for events organisers. The contents of the Natureevents Directory are now live. The digital version is available here.
Find the latest scientific conferences, courses, meetings and symposia on natureevents.com. For event advertising opportunities across the Nature Publishing Group portfolio please contact natureevents@nature.com
More Nature Events

You have been sent this Table of Contents Alert because you have opted in to receive it. You can change or discontinue your e-mail alerts at any time, by modifying your preferences on your nature.com account at: www.nature.com/myaccount
(You will need to log in to be recognised as a nature.com registrant)

For further technical assistance, please contact our registration department

For print subscription enquiries, please contact our subscription department

For other enquiries, please contact our customer feedback department

Nature Publishing Group | 75 Varick Street, 9th Floor | New York | NY 10013-1917 | USA

Nature Publishing Group's worldwide offices:
London - Paris - Munich - New Delhi - Tokyo - Melbourne
San Diego - San Francisco - Washington - New York - Boston

Macmillan Publishers Limited is a company incorporated in England and Wales under company number 785998 and whose registered office is located at Brunel Road, Houndmills, Basingstoke, Hampshire RG21 6XS.

© 2015 Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.

nature publishing group

No comments: