Nature Physics July Issue

TABLE OF CONTENTS July 2013 Volume 9, Issue 7 Editorials Commentary Thesis Research Highlights News and Views Letters Articles Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement Nature Publishing Index 2012 Global The Nature Publishing Index (NPI) ranks institutions and countries according to the number of primary research articles they publish in the Nature family of journals in a one-year period. The Nature Publishing Index 2012 Global supplement provides league tables and commentary based on articles published between 1 January 2012 and 31 December 2012.  Where does your institution rank?     Editorials Top The joys of summer   p383 doi:10.1038/nphys2699 A landmark for the Les Houches series of summer schools underlines the benefit of such activities to researchers of all ages. Grand tour   p383 doi:10.1038/nphys2700 A massive electromagnet is making a fantastic voyage from Brookhaven to Fermilab. Commentary Top Thinking outside the simulation box   pp384 - 386 Abraham Loeb doi:10.1038/nphys2679 Any ambitious construction project requires architects and engineers. As research shifts towards large groups that focus on the engineering aspects of linking data to existing models, architectural skills are becoming rare among young theorists. Thesis Top Birds of a feather   p387 Mark Buchanan doi:10.1038/nphys2684 Research Highlights Top Chemistry revealed | Odd property | Correspondence course | A molecular signature | Dust muster News and Views Top Quantum teleportation: Getting complicated   pp389 - 390 Dzmitry Matsukevich doi:10.1038/nphys2655 Teleportation of simple quantum states of light and matter has already been demonstrated in several experiments. Now the teleportation of continuous-variable states encoded in the collective spin of an atomic ensemble is also possible. See also: Letter by Krauter et al. Hydrodynamics: Wake up   p390 Bart Verberck doi:10.1038/nphys2687 Quantum thermodynamics: Waiter, bring me ±ε!   pp391 - 392 Seth Lloyd doi:10.1038/nphys2633 Thermodynamic processes at the microscopic scale can be quite surprising. New limits on the amount of work that can be extracted from a system in an almost deterministic fashion have now been uncovered. Biophysics: Critical contraction   p392 Abigail Klopper doi:10.1038/nphys2689 Nanophotonics: Optical time reversal with graphene   pp393 - 394 Yaroslav Urzhumov, Cristian Ciracì and David R. Smith doi:10.1038/nphys2644 Would you ever guess that a microscopic flake of graphite could reverse the diffraction of light? An experiment that demonstrates just such an effect highlights the exciting optical applications of graphene — an atomic layer of carbon with a two-dimensional honeycomb lattice. See also: Letter by Harutyunyan et al. Quantum entanglement: Now you see it   p394 Iulia Georgescu doi:10.1038/nphys2690 Solid-state physics: The butterfly emerges   pp395 - 396 Dieter Weiss doi:10.1038/nphys2680 Through carefully controlled deposition of graphene on hexagonal boron nitride, an experimental system is created with which to probe the quantum physics of electrons in two dimensions — allowing experimental access to the elusive 'Hofstadter butterfly'. Neutron stars: A taste of pasta?   pp396 - 397 William G. Newton doi:10.1038/nphys2663 Comparing quantitative calculations of the magnetic field decay of neutron stars and their corresponding spin evolution with observations suggests a high degree of disorder in the inner crust, which might provide evidence for nuclear 'pasta'. See also: Article by Pons et al. Multiferroics: Magnetic moments under stress   pp398 - 399 Annemieke M. Mulders doi:10.1038/nphys2677 Most multiferroic materials are antiferromagnets, yet ferromagnetism can be induced in bismuth ferrite by substrate-induced strain. Strain is now shown to afford useful control of the orientation of magnetic moments in the multiferroics. Physics JOBS of the week Medical Writer – Medical Communications ... Direct and Associated Researchers in Physics Consiglio Nazionale delle Ricerche CNR - National Researcher Council (Italy) PhD student position in Fundamental Physics Chalmers University of Technology Researcher in Thermoelectric Materials Tyndall National Institute at University College Cork, Rep. of Ireland 10 Postdoctoral Fellowships in Cancer Research German Cancer Research Center More Science jobs from Letters Top Deterministic quantum teleportation between distant atomic objects   pp400 - 404 H. Krauter, D. Salart, C. A. Muschik, J. M. Petersen and Heng Shen et al. doi:10.1038/nphys2631 An experiment now demonstrates the deterministic continuous-variable teleportation between two atomic ensembles at room temperature. This protocol makes it possible to teleport time-evolving quantum states from one ensemble to the other. See also: News and Views by Matsukevich Universal spin dynamics in two-dimensional Fermi gases   pp405 - 409 Marco Koschorreck, Daniel Pertot, Enrico Vogt and Michael Kohl doi:10.1038/nphys2637 Experiments with ultracold atomic gases can provide insight into more general phenomena, such as spin transport. A study of spin diffusion in a two-dimensional Fermi gas measured the lowest spin diffusion constant so far, approaching its quantum-limited value. A sudden collapse in the transport lifetime across the topological phase transition in (Bi1-xInx)2Se3    pp410 - 414 Liang Wu, M. Brahlek, R. Valdés Aguilar, A. V. Stier and C. M. Morris et al. doi:10.1038/nphys2647 The quantum phase transition from a topological to a conventional insulator in In-doped Bi2Se3 occurs when the topological phase is destroyed by the hybridization of states on opposite surfaces. This is characterized by a sudden change in the transport lifetime, measured by means of optical spectroscopy. Duality symmetry and its breakdown in the vicinity of the superconductor–insulator transition   pp415 - 418 Maoz Ovadia, David Kalok, Benjamin Sacépé and Dan Shahar doi:10.1038/nphys2636 A study of the magnetic-field-induced superconductor–insulator transition shows that the insulating state is the electromagnetic dual of the superconducting state. However, the duality breaks down at low temperature, suggesting an extra insulating state—such as the proposed superinsulator. Charge-cluster glass in an organic conductor   pp419 - 422 F. Kagawa, T. Sato, K. Miyagawa, K. Kanoda and Y. Tokura et al. doi:10.1038/nphys2642 Geometrically frustrated spin-systems do not order magnetically even at absolute zero, forming instead a spin liquid or a glassy state. An organic conductor in which the charges, rather than spins, are frustrated now shows a similar absence of long-range order, resulting in a charge-cluster glass at low temperature. Controllable optical negative refraction and phase conjugation in graphite thin films   pp423 - 425 Hayk Harutyunyan, Ryan Beams and Lukas Novotny doi:10.1038/nphys2618 Metamaterials can negatively diffract optical-wavelength light; however, they suffer from high losses and only work over a narrow band of frequencies. Researchers now show how nonlinear optics in thin films of graphite can offer a solution. The negligible thickness of the layers reduces the losses, and the linear band structure of the material ensures broadband operation. See also: News and Views by Urzhumov et al. Energetic electron acceleration by unsteady magnetic reconnection   pp426 - 430 H. S. Fu, Yu. V. Khotyaintsev, A. Vaivads, A. Retinò and M. André doi:10.1038/nphys2664 Magnetic reconnection in the Earth's magnetosphere accelerates electrons. And yet energetic electrons are not created during reconnection in the solar wind. Observations from the Cluster spacecraft now suggest that electron acceleration is caused by repeated bursts of plasma flow, which only occur in situations where the magnetic reconnection is unsteady. Articles Top A highly resistive layer within the crust of X-ray pulsars limits their spin periods   pp431 - 434 Jose A. Pons, Daniele Viganò and Nanda Rea doi:10.1038/nphys2640 A pulsar is a rotating neutron star that beams out electromagnetic waves. The absence of isolated X-ray pulsars with periods longer than 12 s could be a clue to the structural composition of a neutron star's crust, as simulations show that an amorphous layer would prevent a pulsar from spinning down. See also: News and Views by Newton Fractional spinon excitations in the quantum Heisenberg antiferromagnetic chain   pp435 - 441 Martin Mourigal, Mechthild Enderle, Axel Klöpperpieper, Jean-Sébastien Caux and Anne Stunault et al. doi:10.1038/nphys2652 Magnetic excitations, or spinons, in a quasi-one-dimensional quantum magnet are investigated in an inelastic neutron-scattering experiment. The measurements confirm the existence of theoretically predicted higher-order spinons. Pseudogap state near a quantum critical point   pp442 - 446 K. B. Efetov, H. Meier and C. Pépin doi:10.1038/nphys2641 Near a quantum critical point there are strong critical fluctuations that destroy standard metallic behaviour. Calculations now show that a pseudogap state can arise in the vicinity of an antiferromagnetic quantum critical point, which might be relevant to the cuprate superconductors. Top Advertisement WE launched in 2011 YOU published 2000 papers with us OUR impact factor is 2.927* Discover what we can do together.  nature.com/scientificreports  *2012 Journal Citation Reports® (Thomson Reuters, 2013)     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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