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Advertisement All content now free to access including archives! Nature Communications is an open access journal that publishes high-quality research from all areas of the natural sciences. Papers published by the journal represent important advances of significance to specialists within each subject area including physics. Visit the website to explore ALL the content available within your field.  TABLE OF CONTENTS March 2016 Volume 12, Issue 3 Editorials Commentary Thesis Research Highlights News and Views Letters Articles Measure for Measure Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement Nature Energy - Now live! The first issue of Nature Energy is published and free to access online! Publishing monthly, this new journal is dedicated to exploring all aspects of energy, from its generation and storage, to its distribution and management, the needs and demands of the different actors, and the impacts that energy technologies and policies have on society. Ensure you stay up to date with future content by registering to receive the monthly e-alert.     Advertisement An 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.   Focus on Turbulence Decades-old speculation that the transition to turbulence belongs to the directed percolation universality class is confirmed with theoretical, numerical and experimental evidence in our Focus on Turbulence. Focus Turbulence Editorials Top Focus on Turbulence Big whorls, little whorls   p197 doi:10.1038/nphys3697 An excursion into ecology and two sets of experiments lay the foundation for our Focus on Turbulence. Grave new world   p197 doi:10.1038/nphys3698 Physicists have finally detected gravitational waves, in a triumph of ingenuity and perseverance. And now we need to explain them to the general public. Commentary Top Focus on Turbulence The long and winding road   pp198 - 199 Yves Pomeau doi:10.1038/nphys3684 For a problem as complex as turbulence, combining universal concepts from statistical physics with ideas from fluid mechanics has proven indispensable. Three decades since this link was formed, it is still providing food for new thought. Thesis Top Generalizing Moore   p200 Mark Buchanan doi:10.1038/nphys3685 Research Highlights Top Materials physics: Bumper harvest | Quantum optics: Automated experimentalist | Astrophysics: Move over Milky Way | Surface science: Condensed melt | Tree physics: The answer to everything News and Views Top Emergent phenomena: Light-induced superconductivity   pp202 - 203 Jure Demsar doi:10.1038/nphys3687 Intense light pulses irradiating a sample of K3C60 result in dramatic changes of its high-frequency (terahertz) conductivity. Could these be signatures of fleeting superconductivity at 100 K and beyond? New Horizons: Small but still special   p203 May Chiao doi:10.1038/nphys3689 Focus on Turbulence Fluid dynamics: In pursuit of turbulence   pp204 - 205 Johannes Knebel, Markus F. Weber and Erwin Frey doi:10.1038/nphys3646 In the transition from laminar to turbulent pipe flow, puffs of turbulence form, split and decay. The phenomenology and lifetime of these turbulent puffs exhibit population dynamics that also drive predator-prey ecosystems on the edge of extinction. See also: Letter by Shih et al. Quantum ferrofluids: Made to order   p205 Bart Verberck doi:10.1038/nphys3688 Two-dimensional materials: Not just a phase   pp206 - 207 Philip W. Phillips doi:10.1038/nphys3682 In some two-dimensional materials, there's a puzzling intermediate metallic phase between superconducting and insulating states. Experiments on ultraclean crystalline samples suggest this metallic phase could be bosonic. See also: Letter by Tsen et al. Physics JOBS JOBS of the week Faculty Positions in Skoltech Center for Photonics and Quantum Materials Skolkovo Institute of Science and Technology (Skoltech) Postdoctoral Fellow in Optical Tomography for Preclinical Radiation Research Johns Hopkins University (JHU) Professor of Biophysics University of Zurich Faculty Positions in the Department of Physics of SUSTC South University of Science and Technology of China (SUSTC) More Science jobs from Letters Top Nature of the quantum metal in a two-dimensional crystalline superconductor   pp208 - 212 A. W. Tsen, B. Hunt, Y. D. Kim, Z. J. Yuan, S. Jia et al. doi:10.1038/nphys3579 Owing to electron localization, two-dimensional materials are not expected to be metallic at low temperatures, but a field-induced quantum metal phase emerges in NbSe2, whose behaviour is consistent with the Bose-metal model. See also: News and Views by Phillips One-dimensional edge state transport in a topological Kondo insulator   pp213 - 217 Yasuyuki Nakajima, Paul Syers, Xiangfeng Wang, Renxiong Wang and Johnpierre Paglione doi:10.1038/nphys3555 Topologically non-trivial states usually emerge from systems with strong spin-orbit coupling, but evidence for such states in the Kondo insulator samarium hexaboride suggests that they can also be driven by strong electron correlations. Generation of heralded entanglement between distant hole spins   pp218 - 223 Aymeric Delteil, Zhe Sun, Wei-bo Gao, Emre Togan, Stefan Faelt et al. doi:10.1038/nphys3605 The detection of a single photon heralds the projection of two remote spins onto a maximally entangled state. This has been demonstrated for quantum-dot hole spins, featuring a fast generation rate that could enable quantum technology applications. Quasiparticle-continuum level repulsion in a quantum magnet   pp224 - 229 K. W. Plumb, Kyusung Hwang, Y. Qiu, Leland W. Harriger, G. E. Granroth et al. doi:10.1038/nphys3566 A neutron scattering study of the quantum magnet BiCu2PO6 demonstrates a phenomenon known as energy-level repulsion, which occurs between a long-lived quasiparticle state and a many-particle continuum. Universality of non-equilibrium fluctuations in strongly correlated quantum liquids   pp230 - 235 Meydi Ferrier, Tomonori Arakawa, Tokuro Hata, Ryo Fujiwara, Raphaëlle Delagrange et al. doi:10.1038/nphys3556 Quantum liquids at equilibrium follow Fermi liquid theory, but less is known about non-equilibrium conditions. Carbon nanotubes, which exhibit universal scaling behaviour, provide a testbed for many-body physics beyond equilibrium. Photo-Nernst current in graphene   pp236 - 239 Helin Cao, Grant Aivazian, Zaiyao Fei, Jason Ross, David H. Cobden et al. doi:10.1038/nphys3549 When laser light is focused onto graphene devices in a magnetic field a long-range photo-Nernst effect causes photocurrents to be generated along the free edges. Modulation of mechanical resonance by chemical potential oscillation in graphene   pp240 - 244 Changyao Chen, Vikram V. Deshpande, Mikito Koshino, Sunwoo Lee, Alexander Gondarenko et al. doi:10.1038/nphys3576 By coupling to electrons in the quantum Hall regime, the mechanical response of graphene resonators is modulated by changes in the chemical potential. Focus on Turbulence Ecological collapse and the emergence of travelling waves at the onset of shear turbulence   pp245 - 248 Hong-Yan Shih, Tsung-Lin Hsieh and Nigel Goldenfeld doi:10.1038/nphys3548 Simulated pipe flow is interpreted using an ecological model in which predatory zonal flow preys on turbulence, and laminar flows emulate nutrients - establishing a link between turbulence and the directed percolation universality class. See also: News and Views by Knebel et al. Focus on Turbulence A universal transition to turbulence in channel flow   pp249 - 253 Masaki Sano and Keiichi Tamai doi:10.1038/nphys3659 Experiments and simulations of the transition to turbulence in fluid flow through a quasi-2D channel reveal critical exponents consistent with directed percolation - long conjectured to be the universality class associated with the transition. See also: Letter by Lemoult et al. Focus on Turbulence Directed percolation phase transition to sustained turbulence in Couette flow   pp254 - 258 Grégoire Lemoult, Liang Shi, Kerstin Avila, Shreyas V. Jalikop, Marc Avila et al. doi:10.1038/nphys3675 Decades-old speculation that the transition to turbulence belongs to the directed percolation universality class is confirmed with experimental and numerical data for flow through a quasi-one-dimensional Couette geometry. See also: Letter by Sano & Tamai Random focusing of tsunami waves   pp259 - 262 Henri Degueldre, Jakob J. Metzger, Theo Geisel and Ragnar Fleischmann doi:10.1038/nphys3557 Fluctuations in the profile of the ocean floor can lead to large variations in tsunami wave height. A theory linking this behaviour to the branched flow characteristics of electron waves through semiconductors may provide a framework for prediction. Coalescence of magnetic flux ropes in the ion diffusion region of magnetic reconnection   pp263 - 267 Rongsheng Wang, Quanming Lu, Rumi Nakamura, Can Huang, Aimin Du et al. doi:10.1038/nphys3578 Merging magnetic flux ropes, which are believed to play an important role in magnetic reconnection, have now been clearly identified. Observations show that coalescence is indeed closely related to reconnection dynamics and also to turbulence. Cassini in situ observations of long-duration magnetic reconnection in Saturn's magnetotail   pp268 - 271 C. S. Arridge, J. P. Eastwood, C. M. Jackman, G.-K. Poh, J. A. Slavin et al. doi:10.1038/nphys3565 Cassini's encounter with Saturn's magnetotail - the long magnetosphere region stretching into space - has revealed that plasma exits the magnetosphere through long-duration magnetic reconnection, which ejects ten times more mass than estimated. Articles Top Resistivity plateau and extreme magnetoresistance in LaSb   pp272 - 277 F. F. Tafti, Q. D. Gibson, S. K. Kushwaha, N. Haldolaarachchige and R. J. Cava doi:10.1038/nphys3581 A series of transport experiments on lanthanum antimonide reveal a plateau in its resistivity and an extremely large magnetoresistance that are consistent with topologically protected electronic states. Robophysical study of jumping dynamics on granular media   pp278 - 283 Jeffrey Aguilar and Daniel I. Goldman doi:10.1038/nphys3568 A study of robots jumping on granular media reveals that performance depends on an added-mass effect born of grains solidifying on impact. Techniques that are optimized for launching off hard surfaces are shown to be compromised by the effect. Measure for Measure Top The electrical connection   p284 Francois Piquemal doi:10.1038/nphys3683 Francois Piquemal tells the story of the ampere, which bridges mechanical and electromagnetic units. 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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