Nature Physics August Issue

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TABLE OF CONTENTS August 2014 Volume 10, Issue 8 Editorial Commentary Thesis Books and Arts Research Highlights News and Views Letters Articles Futures Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement Nature Milestones in Crystallography Nature Milestones in Crystallography is a collaboration from Nature, Nature Materials, Nature Nanotechnology and Nature Structural & Molecular Biology, and celebrates the International Year of Crystallography 2014.  Access the Milestones supplement FREE online for six months.  Associated Society International Union of Crystallography Produced with support from the worldwide network of neutron and X-ray sources   Editorial Top Having it all   p539 doi:10.1038/nphys3070 Crystallography has evolved into a vast, multidisciplinary field — but it has enduring significance for physics, and should remain a fixture in university curricula. Commentary Top All the colours of the rainbow   pp540 - 542 Hannah E. Smithson, Giles E. M. Gasper and Tom C. B. McLeish doi:10.1038/nphys3052 Our perception of colour has always been a source of fascination, so it's little wonder that studies of the phenomenon date back hundreds of years. What, though, can modern scientists learn from medieval literature — and how do we go about it? Thesis Top Equivalence principle   p543 Mark Buchanan doi:10.1038/nphys3064 Books and Arts Top The fantastically marvellous universe   p544 Iulia Georgescu reviews Time in Powers of Ten: Natural Phenomena and Their Timescales by Gerard 't Hooft, Stefan Vandoren and Saskia Eisberg-'t Hooft doi:10.1038/nphys3039 Theatre: Creative energy   p545 Juliane Mossinger doi:10.1038/nphys3055 Exhibition: Cut and colour   p546 Luke Fleet doi:10.1038/nphys3056 Research Highlights Top Raise a glass | Local hot bubble | Protein power | Back from the future | Spin for heat News and Views Top Fluid dynamics: Getting the drops in   pp548 - 549 Jens Eggers doi:10.1038/nphys3043 When a bubble bursts at a liquid-gas interface, a portion of gas is released from the liquid. Now, another, counterintuitive process is reported: rapid motion generated by bubble-bursting transports oil droplets from the surface into the interior of a volume of water. See also: Article by Feng et al. | Spintronics: SHE's electric   pp549 - 550 Kyoung-Whan Kim and Hyun-Woo Lee doi:10.1038/nphys3046 The origins of the spin Hall effect are difficult to probe, largely because experiments typically characterize electrons near the Fermi surface. Quantum tunnelling spectroscopy now provides access to its energy dependence. See also: Letter by Liu et al. | Strong-field physics: Displaced creation   pp550 - 551 Jochen Küpper doi:10.1038/nphys3045 The ionization of atoms and molecules by strong laser fields has become a core technique in modern laser physics. Now, the electrons emerging from ionized molecules are shown to exhibit a memory of the ionization process, resulting in a spatial phase that may influence the interpretation of imaging data. See also: Article by Meckel et al. | Ultrafast spintronics: Give it a whirl   pp552 - 553 Karel Carva doi:10.1038/nphys3057 Measurements of laser-induced magnetization dynamics suggest that spin currents can be generated on ultrafast timescales. Now it is shown that such currents may be capable of exerting ultrafast spin-transfer torques. Many-body physics: At full tilt   p553 Federico Levi doi:10.1038/nphys3063 Ultracold atoms: On the ladder   pp554 - 555 Erich Mueller doi:10.1038/nphys3038 Trapping rubidium atoms in narrow lattices provides insight into the quantum mechanics of collections of interacting particles. This innovative approach reveals a phase transition similar to one found in superconductors. See also: Article by Atala et al. | Disordered solids: In search of the perfect glass   pp555 - 556 Giulio Biroli doi:10.1038/nphys3054 The jury's still out on how glasses and other disordered materials form. However, a new framework suggests that we can understand their mechanical properties without this information, by using the physics of jamming. See also: Letter by Goodrich et al. | Physics of cancer: A stretch for any brain   p556 Abigail Klopper doi:10.1038/nphys3062 Physics JOBS of the week Lecturer(s) / Senior Lecturer(s) in Physics University of Otago Postdoctoral Research Position in Theoretical Soft Matter and Statistical Physics University of Puerto Rico at Mayaguez Lecturer in Experimental Quantum Spintronics University of Leeds Postdoctoral scholar in epigenomics and regulatory genomics University of Iowa Carver College of Medicine Research Fellow – Land Surface Scientist Science and Technology Facilities Council (STFC) More Science jobs from Physics EVENT International Conference on the History of Physics 4th September 2014 Cambridge, UK More science events from Letters Top Evidence for the direct decay of the 125 GeV Higgs boson to fermions OPEN   pp557 - 560 The CMS Collaboration doi:10.1038/nphys3005 From the manner of its discovery in 2012, it was apparent that the 125 GeV Higgs boson couples to bosons, but does it couple to fermions too? Yes, says the CMS Collaboration at CERN, who present combined evidence of Higgs decay to pairs of bottom quarks and pairs of tau leptons. Spin Hall effect tunnelling spectroscopy   pp561 - 566 Luqiao Liu, Ching-Tzu Chen and J. Z. Sun doi:10.1038/nphys3004 The spin Hall effect, which arises from the spin-orbit interaction, is expected to be energy dependent, but experiments typically only characterize electrons near the Fermi surface. A tunnelling spectroscopy method has now been developed to probe the energy dependence. See also: News and Views by Kim & Lee | Dissipative superconducting state of non-equilibrium nanowires   pp567 - 571 Yu Chen, Yen-Hsiang Lin, Stephen D. Snyder, Allen M. Goldman and Alex Kamenev doi:10.1038/nphys3008 The dissipation-less flow of supercurrent through a wire is a well-known property of superconductors. But in some cases, a normal current can flow in the presence of superconductivity. This may be due to non-equilibrium physics. Mapping the unconventional orbital texture in topological crystalline insulators   pp572 - 577 Ilija Zeljkovic, Yoshinori Okada, Cheng-Yi Huang, R. Sankar, Daniel Walkup et al. doi:10.1038/nphys3012 In crystalline topological insulators, the combination of an insulating bulk with conducting surface states is due to particular crystal symmetry. The associated Dirac cones—linear crossings in the electronic band structure—exhibit non-trivial orbital textures that have now been probed by means of scanning tunnelling spectroscopy. Solids between the mechanical extremes of order and disorder   pp578 - 581 Carl P. Goodrich, Andrea J. Liu and Sidney R. Nagel doi:10.1038/nphys3006 Jammed systems are typically thought of as being amorphous. Simulations of packings with varying disorder reveal a crossover from crystalline behaviour, which suggests the physics of jamming also applies to highly ordered systems—providing a new framework for understanding amorphous solids. See also: News and Views by Biroli | Articles Top A quantum network of clocks   pp582 - 587 P. Kómár, E. M. Kessler, M. Bishof, L. Jiang, A. S. Sørensen et al. doi:10.1038/nphys3000 A proposed network of atomic clocks—using non-local entangled states—could achieve unprecedented stability and accuracy in time-keeping, as well as being secure against internal or external attack. Observation of chiral currents with ultracold atoms in bosonic ladders   pp588 - 593 Marcos Atala, Monika Aidelsburger, Michael Lohse, Julio T. Barreiro, Belén Paredes et al. doi:10.1038/nphys2998 Laser-assisted tunnelling allows quantum gases in optical lattices to be exposed to tunable artificial magnetic fields. Using such fields to confine a bosonic gas to an array of one-dimensional ladders, a low-dimensional equivalent of the Meissner effect has been observed. See also: News and Views by Mueller | Signatures of the continuum electron phase in molecular strong-field photoelectron holography   pp594 - 600 M. Meckel, A. Staudte, S. Patchkovskii, D. M. Villeneuve, P. B. Corkum et al. doi:10.1038/nphys3010 Intense lasers can both ionize atoms and subsequently drive the recollision of the released electrons with their ionized parents. Holography experiments now show that the orientation of the parent can change the recollision process, requiring a refinement of the commonly used strong-field approximation. See also: News and Views by Küpper | Demonstration of magnetically activated and guided isotope separation   pp601 - 605 Thomas R. Mazur, Bruce Klappauf and Mark G. Raizen doi:10.1038/nphys3013 Isotope production is usually associated with nuclear reactors, but there are alternative approaches. One such proposal is based on the well-known atomic physics experimental techniques of optical pumping and magnetic guiding, and its viability for isotope separation is now experimentally demonstrated. Nanoemulsions obtained via bubble-bursting at a compound interface   pp606 - 612 Jie Feng, Matthieu Roché, Daniele Vigolo, Luben N. Arnaudov, Simeon D. Stoyanov et al. doi:10.1038/nphys3003 When a bubble bursts on reaching a surface, mass transfer from the liquid to the gas phase can occur—aerosol dispersion. Now, the inverse transport process is reported: submicrometre-sized oil droplets, formed during bubble-bursting, are zipped across the interface to the liquid phase. See also: News and Views by Eggers | Futures Top Reef   p614 John Frizell doi:10.1038/nphys3073 Chance encounter. 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

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