Nature Physics June Issue

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TABLE OF CONTENTS June 2016 Volume 12, Issue 6 Editorial Commentary Thesis Books and Arts Research Highlights News and Views Progress Article Letters Articles Measure for Measure Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement Subscribe to Nature with our best current personal subscription offer to access a wealth of scientific articles, features and news every week. Personal subscriptions include app, online, digital and print access so you can enjoy Nature anytime, anywhere.    Editorial Top Sense or sensibility?   p523 doi:10.1038/nphys3797 There is no upside for UK science in the event of a vote to leave the EU in the upcoming referendum. Commentary Top Defining gravity   pp524 - 525 Joey Shapiro Key and Martin Hendry doi:10.1038/nphys3786 The announcement confirming the discovery of gravitational waves created sensational media interest. But educational outreach and communication must remain high on the agenda if the general public is to understand such a landmark result. Thesis Top Beyond climate   p526 Mark Buchanan doi:10.1038/nphys3785 Books and Arts Top An entertaining view of science   p527 Rhett Allain reviews Picture This! Grasping the Dimensions of Time and Space by Michael Carroll doi:10.1038/nphys3780 Research Highlights Top Polymer physics: Loopy glasses | Single-molecule magnets: Spinning around | Random walks: Match maker | Black holes: Precision scales | Dirac semimetals: Lead a double life News and Views Top Plasma physics: Rogue waves caught in 3D   pp529 - 530 Jeremiah Williams doi:10.1038/nphys3696 Three-dimensional rogue waves have been observed in a dusty-plasma system, which provides a wave-particle interaction view on their formation. See also: Letter by Tsai et al. Fermi gases: Anisotropic universality   pp530 - 531 Masahito Ueda doi:10.1038/nphys3707 An experiment confirms that universal relations describe fermionic systems with p-wave symmetry. See also: Article by Luciuk et al. Granular matter: So much for the jamming point   pp531 - 532 Stefan Luding doi:10.1038/nphys3680 The concept of an evolving jamming density explains a multitude of mechanisms in granular matter. Simulations of systems with friction now consolidate this notion and highlight that the jamming point is a variable that can move in various ways whenever the system is deformed. See also: Letter by Vinutha & Sastry Biophysics: Unfolding the brain   pp533 - 534 Ellen Kuhl doi:10.1038/nphys3641 The folded surface of the human brain, although striking, continues to evade understanding. Experiments with swelling gels now fuel the notion that brain folding is modulated by physical forces, and not by genetic, biological or chemical events alone. See also: Letter by Tallinen et al. Physics JOBS of the week Two positions in the area of theoretical and experimental Soft Matter Physics and Biophysics University of Amsterdam and Vrije Universiteit Amsterdam Senior Lecturer, School of Physics, Faculty of Science University of New South Wales Proleptic Lectureship Scheme - Chemistry, Informatics, Mathematics, Physics King's College London Postdoctoral position in materials science / physics / chemistry (full time) Friedrich Schiller University Jena More Science jobs from Physics EVENT 11th International Conference On Physics Of Advanced Materials (ICPAM-11) 08.09.16 Cluj-Napoca, Romania More science events from Progress Article Top The conformal bootstrap   pp535 - 539 David Poland and David Simmons-Duffin doi:10.1038/nphys3761 A renaissance of interest in a numerical technique known as the conformal bootstrap is surveyed, and its implications for the determination of critical exponents in a range of spin models is discussed. Letters Top Experimental realization of two-dimensional synthetic spin-orbit coupling in ultracold Fermi gases   pp540 - 544 Lianghui Huang, Zengming Meng, Pengjun Wang, Peng Peng, Shao-Liang Zhang et al. doi:10.1038/nphys3672 Spin-orbit coupling in two dimensions is essential for observing topological phases in ultracold atoms. Such a coupling was produced in a gas of potassium atoms and a robust Dirac point was observed in the energy dispersions of the dressed atoms. Realization of a tunable artificial atom at a supercritically charged vacancy in graphene   pp545 - 549 Jinhai Mao, Yuhang Jiang, Dean Moldovan, Guohong Li, Kenji Watanabe et al. doi:10.1038/nphys3665 Single carbon vacancies in graphene can host a positive charge that is tunable. When this charge is large enough such vacancies resemble artificial atoms, with an induced sequence of quasi-bound states that trap nearby electrons. Chiral magnetic effect in ZrTe5   pp550 - 554 Qiang Li, Dmitri E. Kharzeev, Cheng Zhang, Yuan Huang, I. Pletikosić et al. doi:10.1038/nphys3648 A magnetotransport study of zirconium pentatelluride now reveals evidence for a chiral magnetic effect, a striking macroscopic manifestation of the quantum and relativistic nature of Weyl semimetals. Geometric Hall effects in topological insulator heterostructures   pp555 - 559 K. Yasuda, R. Wakatsuki, T. Morimoto, R. Yoshimi, A. Tsukazaki et al. doi:10.1038/nphys3671 Two intriguing manifestations of Hall physics are reported in a topologically insulating heterostructure: a sign-reversal of the anomalous Hall effect and the emergence of a topological Hall effect. Critical spin fluctuations and the origin of nematic order in Ba(Fe1-xCox)2As2   pp560 - 563 F. Kretzschmar, T. Böhm, U. Karahasanović, B. Muschler, A. Baum et al. doi:10.1038/nphys3634 Inelastic Raman scattering is used to probe the critical spin fluctuations in an iron pnictide superconductor, providing insights into the origin of nematic order in this system. Controllable 0-π Josephson junctions containing a ferromagnetic spin valve   pp564 - 567 E. C. Gingrich, Bethany M. Niedzielski, Joseph A. Glick, Yixing Wang, D. L. Miller et al. doi:10.1038/nphys3681 Josephson junctions incorporating ferromagnetic spin valves are shown to be switchable between the 0 and π states, opening up interesting wider implications for possible devices. Josephson ϕ0-junction in nanowire quantum dots   pp568 - 572 D. B. Szombati, S. Nadj-Perge, D. Car, S. R. Plissard, E. P. A. M. Bakkers et al. doi:10.1038/nphys3742 A so-called Josephson ϕ0-junction based on a nanowire quantum dot is reported. By means of electrostatic gating, it is possible to controllably introduce a phase offset taking any value between 0 and π in the ground state of the junction. Generation of acoustic rogue waves in dusty plasmas through three-dimensional particle focusing by distorted waveforms   pp573 - 577 Ya-Yi Tsai, Jun-Yi Tsai and Lin I doi:10.1038/nphys3669 Rogue waves have been observed in fluids and other wave contexts. Experiments now show the formation of 3D acoustic rogue waves in dusty plasmas; they result from wave-particle interactions driving the dust particles into high-amplitude dynamics. See also: News and Views by Williams Disentangling the role of structure and friction in shear jamming   pp578 - 583 H. A. Vinutha and Srikanth Sastry doi:10.1038/nphys3658 Amorphous packings of spheres subject to shear and friction jam above a critical density. Simulations now show that shear results in geometrical patterns that are precursors to jammed structures and that friction effectuates the jamming. See also: News and Views by Luding Strain-controlled criticality governs the nonlinear mechanics of fibre networks   pp584 - 587 A. Sharma, A. J. Licup, K. A. Jansen, R. Rens, M. Sheinman et al. doi:10.1038/nphys3628 Fibre networks become rigid at a critical connectivity, but biopolymers giving structure to cells aren't always well connected. Modelling and experiments on collagen networks show that their rigidity constitutes strain-controlled critical behaviour. On the growth and form of cortical convolutions   pp588 - 593 Tuomas Tallinen, Jun Young Chung, François Rousseau, Nadine Girard, Julien Lefèvre et al. doi:10.1038/nphys3632 A 3D-printed fetal brain undergoes constrained expansion to reproduce the shape of the human cerebral cortex. The soft gels of the model swell in solvent, mimicking cortical growth and revealing the mechanical origin of the brain's folded geometry. See also: News and Views by Kuhl Articles Top Unexpectedly large charge radii of neutron-rich calcium isotopes   pp594 - 598 R. F. Garcia Ruiz, M. L. Bissell, K. Blaum, A. Ekström, N. Frömmgen et al. doi:10.1038/nphys3645 Doubly magic atomic nuclei - having a magic number of both protons and neutrons - are very stable. Now, experiments revealing unexpectedly large charge radii for a series of Ca isotopes put the doubly magic nature of the 52Ca nucleus into question. Evidence for universal relations describing a gas with p-wave interactions   pp599 - 605 Christopher Luciuk, Stefan Trotzky, Scott Smale, Zhenhua Yu, Shizhong Zhang et al. doi:10.1038/nphys3670 In a Fermi gas with s-wave interactions the contact relations link the thermodynamic and microscopic properties. For the p-wave case two new types of contacts that characterize the interactions have now been measured experimentally. See also: News and Views by Ueda Directional transport of high-temperature Janus droplets mediated by structural topography   pp606 - 612 Jing Li, Youmin Hou, Yahua Liu, Chonglei Hao, Minfei Li et al. doi:10.1038/nphys3643 Controlled motion of a droplet on a hot surface is hampered by the formation of an evaporation layer below the droplet (Leidenfrost effect). But a cleverly patterned surface induces a Leidenfrost-contact-boiling state, directing the droplet's motion. Measure for Measure Top From candle to candela   p614 Yuqin Zong doi:10.1038/nphys3787 Yuqin Zong sheds light on photometry's fundamental unit. Top Advertisement Light: Science & Applications received 2014 Impact Factor of 14.603. 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