Nature Physics May Issue

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

TABLE OF CONTENTS May 2015 Volume 11, Issue 5 Editorial Commentaries Thesis Books and Arts Research Highlights News and Views Progress Article Letters Articles Futures Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement Nature Nanotechnology Focus on Spin-transfer-torque memory  Access the Focus for FREE  Produced with exclusive support from  Spin Transfer Technologies   Focus Top Focus on Physics and computing Contents Editorial Commentaries Physicists have always been quick to adopt computing technologies, and computers have likewise played a key role in physics research. This Focus examines physicists' response to the challenges—and opportunities—posed by recent advances in computing. Editorial Top Focus on Physics and computing Beautiful machines   p365 doi:10.1038/nphys3337 Physicists are now, as ever, pushing the development of computing technologies. But they're also innovating ways of using them. Commentaries Top Focus on Physics and computing Open science decoded   pp367 - 369 Tony Hey and Mike C. Payne doi:10.1038/nphys3313 Granting access to publications and data may be a step towards open science, but it's not enough to ensure reproducibility. Making computer code available is also necessary — but the emphasis must be on the quality of the programming. Focus on Physics and computing Programming revisited   pp369 - 373 Thomas C. Schulthess doi:10.1038/nphys3294 Writing efficient scientific software that makes best use of the increasing complexity of computer architectures requires bringing together modelling, applied mathematics and computer engineering. Physics may help unite these approaches. Focus on Physics and computing Look to the clouds and beyond   pp373 - 374 Sergey Panitkin doi:10.1038/nphys3319 Research in high-energy physics produces masses of data, demanding extensive computational resources. The scientists responsible for managing these resources are now turning to cloud and high-performance computing. Thesis Top Model scientists   p375 Mark Buchanan doi:10.1038/nphys3335 Books and Arts Top Music: Soundtrack to the space race   p376 Nicky Dean doi:10.1038/nphys3323 Research Highlights Top Collective response | Young and rich stars | DIY interactions | Sound cans | Kept in the dark News and Views Top Quantum information: Good causes   pp379 - 380 Giulio Chiribella doi:10.1038/nphys3295 Classically, it is impossible to infer causal dependencies from the correlations between two variables alone, but in the quantum world causal relationships exist that can be completely characterized by observing the correlations between two systems. See also: Article by Ried et al. Fluid dynamics: Sticky stitches   p380 Bart Verberck doi:10.1038/nphys3327 Amorphous solids: Glasses pinned down   pp381 - 382 Eric R. Weeks doi:10.1038/nphys3316 Laser tweezers can be used to control particles in a colloidal glass, thereby influencing the dynamics of their neighbours. The range of this influence — and how it changes — may provide a structural mechanism to explain the solidity of glasses. See also: Letter by Hima Nagamanasa et al. Molecular physics: Tiny giant   p382 Iulia Georgescu doi:10.1038/nphys3329 Ten years of Nature Physics: From spooky foundations   pp383 - 384 Sebastian Deffner doi:10.1038/nphys3318 Quantum entanglement is as confounding as it is potentially useful. A paper in 2006 suggested that its utility might extend to making sense of a fundamental puzzle in statistical mechanics. EPR Paradox: Nonlocal legacy   p384 Federico Levi doi:10.1038/nphys3328 Physics JOBS of the week Lecturer in Physics - Chemistry King's College London Professor of Experimental Physics NUI Galway Postdoctoral to Senior Level Scientists in Physics and Electronic Materials Navy Research Laboratory Visiting Professor for “Enrico Fermi Lectures” Department of Physics SAPIENZA Università di Roma Postdoctoral positions (m / f) in Biological Physics Max Planck Institute for Dynamics and Self-Organization More Science jobs from Physics EVENT Autumn School on Correlated Electrons: Many-Body Physics: From Kondo to Hubbard 21st Sept - 25th Sept 2015 Jülich, Germany More science events from Progress Article Top Fractionalized topological insulators   pp385 - 388 Joseph Maciejko and Gregory A. Fiete doi:10.1038/nphys3311 Topological insulators are often considered to be one-band problems that are easy to solve. However, strongly correlated topological insulators cannot be described by band theory because the electrons fractionalize into other degrees of freedom. Letters Top Generation of a squeezed state of an oscillator by stroboscopic back-action-evading measurement   pp389 - 392 G. Vasilakis, H. Shen, K. Jensen, M. Balabas, D. Salart et al. doi:10.1038/nphys3280 Squeezed states make it possible to circumvent the standard quantum limit. Using stroboscopic measurements one can create squeezed states of a rather unusual oscillator: the collective spin of an atomic ensemble precessing in a magnetic field. Broadband magnetometry and temperature sensing with a light-trapping diamond waveguide   pp393 - 397 Hannah Clevenson, Matthew E. Trusheim, Carson Teale, Tim Schröder, Danielle Braje et al. doi:10.1038/nphys3291 Nitrogen-vacancy centres offer significant promise as nanoscale magnetometers. A light-trapping diamond waveguide is demonstrated, enhancing the temperature and magnetic field sensitivity of such centres by three orders of magnitude. Surface electron perturbations and the collective behaviour of atoms adsorbed on a cylinder   pp398 - 402 Boris Dzyubenko, Hao-Chun Lee, Oscar E. Vilches and David H. Cobden doi:10.1038/nphys3302 Charge transfer from adsorption is shown to provide an electrical method for probing the collective behaviour of atoms and small molecules confined to the surface of a carbon nanotube. Direct measurements of growing amorphous order and non-monotonic dynamic correlations in a colloidal glass-former   pp403 - 408 K. Hima Nagamanasa, Shreyas Gokhale, A. K. Sood and Rajesh Ganapathy doi:10.1038/nphys3289 As a liquid relaxes towards the glass transition, its dynamics is thought to become more cooperative. Experiments using holographic optical tweezers support a contested thermodynamic picture, claiming this cooperation involves morphology changes. See also: News and Views by Weeks Persistence of magnetic field driven by relativistic electrons in a plasma   pp409 - 413 A. Flacco, J. Vieira, A. Lifschitz, F. Sylla, S. Kahaly et al. doi:10.1038/nphys3303 In laboratory experiments, strong magnetic fields at the boundary of a plasma can be generated by means of laser-wakefield acceleration, enabling the study of magnetization processes in scaled versions of astrophysical plasmas. Articles Top A quantum advantage for inferring causal structure   pp414 - 420 Katja Ried, Megan Agnew, Lydia Vermeyden, Dominik Janzing, Robert W. Spekkens et al. doi:10.1038/nphys3266 It is impossible to distinguish between causal correlation and common cause based on classical correlations alone. An experiment now shows that for quantum variables it is sometimes possible to infer the causal structure just from observations. See also: News and Views by Chiribella Snapshots of the retarded interaction of charge carriers with ultrafast fluctuations in cuprates   pp421 - 426 S. Dal Conte, L. Vidmar, D. Golež, M. Mierzejewski, G. Soavi et al. doi:10.1038/nphys3265 By pushing both time and frequency resolution in optical spectroscopy it is now possible to resolve antiferromagnetic fluctuations in a copper oxide superconductor, which are believed to mediate the pairing of charge carriers. Magnetic field effects in hybrid perovskite devices   pp427 - 434 C. Zhang, D. Sun, C-X. Sheng, Y. X. Zhai, K. Mielczarek et al. doi:10.1038/nphys3277 Perovskite photovoltaics are the fastest-advancing solar technology but the mechanisms responsible for their performance are not clear. The observation of magnetic field effects in hybrid perovskites may help to explain their high efficiencies. 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   Futures Top Daega's test   p436 Jeremy Szal doi:10.1038/nphys3336 An identity crisis. Top 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.