Nature Physics December Issue

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TABLE OF CONTENTS December 2014 Volume 10, Issue 12 Editorial Commentary Thesis Books and Arts Research Highlights News and Views Progress Article Letters Articles Erratum Futures Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement Attending the MRS Fall Meeting in Boston? Visit Nature Materials at the Nature Publishing Group booth #110 to: Browse and take free sample copies of leading journals from NPG, including Nature and Nature Materials Subscribe at discounted conference rates     Editorial Top British science needs free movement   p891 doi:10.1038/nphys3195 As the debate on immigration in the UK becomes increasingly visceral, British science risks being caught in the crossfire. Commentary Top A new frontier for superconductivity   pp892 - 895 Ivan Bozovic and Charles Ahn doi:10.1038/nphys3177 Monolayer films of iron selenide deposited on strontium titanate display signatures of superconductivity at temperatures as high as 109 K. These recent developments may herald a flurry of exciting findings concerning superconductivity at interfaces. Thesis Top Counting the cost of irreversibility   p896 Mark Buchanan doi:10.1038/nphys3176 Books and Arts Top Television: Thermonuclear families   pp897 - 898 Nicky Dean doi:10.1038/nphys3168 Research Highlights Top Edgy magnetism | Mystery of the missing core | Shall we dance | Surfaces take charge | Through the looking glass News and Views Top Rydberg atoms: Two to tango   pp901 - 902 Robert Löw doi:10.1038/nphys3153 The old adage that you can't tango alone is certainly true for humans. But recent experiments show that it may also be applicable to Rydberg atoms, which keep a beat through the coherent exchange of energy. See also: Letter by Ravets et al. Atomic solitons: These crashing waves   pp902 - 903 Thomas P. Billam and Christoph Weiss doi:10.1038/nphys3162 Solitons in attractive Bose-Einstein condensates are mesoscopic quantum objects that may prove useful as tools for precision measurement. A new experiment shows that collisions of matter-wave bright solitons depend crucially on their relative phase. See also: Letter by Nguyen et al. Device physics: Power inequality   pp903 - 904 Ari Sihvola doi:10.1038/nphys3166 Non-reciprocal components are useful in microwave engineering and photonics, but they are not without their drawbacks. A compact design now provides non-reciprocity without resorting to magnets or nonlinearity. See also: Letter by Estep et al. Interface superconductivity: Get it strained   p905 Fakher F. Assaad doi:10.1038/nphys3161 Stretching a sheet of graphene could induce a superconducting state. Similar strain-induced superconductivity may be realized at the interface between a topological crystalline insulator and a trivial band insulator. See also: Article by Tang & Fu Dark matter: Time for detection   pp906 - 907 Rana Adhikari, Paul Hamiton and Holger Müller doi:10.1038/nphys3175 Dark matter remains experimentally elusive. But what if it is more classical than expected, resembling a spatially varying field? A network of atomic clocks would be able to detect its variations. See also: Letter by Derevianko & Pospelov Vortex physics: Ferroelectrics in a twist   pp907 - 908 Stephen E. Rowley and Gilbert G. Lonzarich doi:10.1038/nphys3179 Ferroelectric polarization vortices close to a ferroelectric transition turn out to be striking models of the cosmos in which strings are thought to have condensed out of the rapid expansion of the early Universe. See also: Article by Lin et al. Physics JOBS of the week Postdoctoral position in theoretical nuclear physics Chalmers University of Technology Senior Research Scientist (Physics) Abdus Salam International Centre for Theoretical Physics (ICTP) Exploring the Interface Between Distributed Control Theory and Statistical Physics University of California Santa Barbara PhD position in Theoretical Chemistry / Physics Massey University New Zealand Tenure Track Positions - Faculty of Physics University of Vienna (Universitaet Wien) More Science jobs from Physics EVENT Physics of Emergent Behaviour 2015 9th July - 10th July 2015 London, UK More science events from Progress Article Top Recent advances in nuclear physics through on-line isotope separation   pp909 - 913 David Gareth Jenkins doi:10.1038/nphys3165 The on-line isotope separation technique for the production of accelerated beams of radioactive ions has led to important advances in our understanding of atomic nuclei. These are now reviewed, and further prospects are discussed. Letters Top Coherent dipole-dipole coupling between two single Rydberg atoms at an electrically-tuned Förster resonance   pp914 - 917 Sylvain Ravets, Henning Labuhn, Daniel Barredo, Lucas Béguin, Thierry Lahaye et al. doi:10.1038/nphys3119 Rydberg atoms offer an avenue for quantum simulation of many-body problems, but evidence for the coherent nature of their interaction is indirect. An externally-tuned resonance now reveals coherent oscillations between two single Rydberg atoms. See also: News and Views by Löw Collisions of matter-wave solitons   pp918 - 922 Jason H. V. Nguyen, Paul Dyke, De Luo, Boris A. Malomed and Randall G. Hulet doi:10.1038/nphys3135 Atomic matter waves provide a controllable platform for studying the behaviour of solitons. In a lithium condensate, a characterization of the dynamics of collisions between solitons reveals a dependence on their relative phases. See also: News and Views by Billam & Weiss Magnetic-free non-reciprocity and isolation based on parametrically modulated coupled-resonator loops   pp923 - 927 Nicholas A. Estep, Dimitrios L. Sounas, Jason Soric and Andrea Alù doi:10.1038/nphys3134 Communication systems require non-reciprocal electromagnetic propagation, which is difficult to realize in circuits. An alternative is demonstrated by modulating the phase of strongly coupled resonators in a circular configuration. See also: News and Views by Sihvola Evidence of Andreev bound states as a hallmark of the FFLO phase in κ-(BEDT-TTF)2Cu(NCS)2   pp928 - 932 H. Mayaffre, S. Krämer, M. Horvatić, C. Berthier, K. Miyagawa et al. doi:10.1038/nphys3121 A Fulde-Ferrell-Larkin-Ovchinnikov superconductor comprises pairs of fermions with non-zero momentum, which form alternating superconducting and normal regions in a magnetic field. NMR measurements now provide microscopic evidence for such a state. Hunting for topological dark matter with atomic clocks   pp933 - 936 A. Derevianko and M. Pospelov doi:10.1038/nphys3137 A proposal for detecting dark matter originating from light fields rather than particles makes use of existing networks of atomic clocks to measure time discrepancies between clocks that are spatially separated. See also: News and Views by Adhikari et al. Articles Top Cooperative coupling of ultracold atoms and surface plasmons   pp937 - 942 Christian Stehle, Claus Zimmermann and Sebastian Slama doi:10.1038/nphys3129 Coupling the fluorescence of cold atoms to plasmons propagating on a gold surface offers a means of controlling the radiation from optical emitters without the need for a cavity. Momentum-space imaging of Cooper pairing in a half-Dirac-gas topological superconductor   pp943 - 950 Su-Yang Xu, Nasser Alidoust, Ilya Belopolski, Anthony Richardella, Chang Liu et al. doi:10.1038/nphys3139 Supersymmetry and Majorana fermions that are their own antiparticles are both concepts from particle physics that may become testable in condensed-matter systems. The observation of Cooper pairs in a helical Dirac gas brings this goal a step closer. The dynamics of a doped hole in a cuprate is not controlled by spin fluctuations   pp951 - 955 Hadi Ebrahimnejad, George A. Sawatzky and Mona Berciu doi:10.1038/nphys3130 A variational approach for a three-band model provides deeper insights into the dynamics of a hole doped into an antiferromagnetic layer, with important implications for theories of high-temperature superconductivity. Observation of topological surface state quantum Hall effect in an intrinsic three-dimensional topological insulator   pp956 - 963 Yang Xu, Ireneusz Miotkowski, Chang Liu, Jifa Tian, Hyoungdo Nam et al. doi:10.1038/nphys3140 Experimentalists have observed the predicted half-integer quantum Hall effect using the topological insulator BiSbTeSe2, which exhibits topological surface states at room temperature, with each surface contributing a half quantum of Hall conductance. Strain-induced partially flat band, helical snake states and interface superconductivity in topological crystalline insulators   pp964 - 969 Evelyn Tang and Liang Fu doi:10.1038/nphys3109 In topological crystalline insulators, crystal symmetries give rise to particular electronic structures. As now shown, strain further induces pseudo-Landau states in IV-VI heterostructures—a mechanism possibly responsible for the superconductivity observed in such systems. See also: News and Views by Assaad Topological defects as relics of emergent continuous symmetry and Higgs condensation of disorder in ferroelectrics   pp970 - 977 Shi-Zeng Lin, Xueyun Wang, Yoshitomo Kamiya, Gia-Wei Chern, Fei Fan et al. doi:10.1038/nphys3142 An imaging study of vortex proliferation near a continuous phase transition in a ferroelectric reveals frozen-in vortices that follow the predictions of the Kibble-Zurek model for cosmological strings formed in the early Universe. See also: News and Views by Rowley & Lonzarich Futures Top A brief history of human intelligence   p978 Jeremy R. Butler doi:10.1038/nphys3199 The universal challenge. Erratum Top Erratum: Exciton-polariton condensates   p977 Tim Byrnes, Na Young Kim and Yoshihisa Yamamoto doi:10.1038/nphys3184 Top Advertisement Nature Photonics Focus — Nanophotonics.  The field of nanophotonics is more active than ever. This Focus Issue reviews some of the developments stemming from nanophotonics including small dielectric- and metal-based lasers, advances in near-field imaging, metamaterials, and ?flat? 2D nano-optics using emerging material systems such as insulating hexagonal boron nitride and semiconducting transition metal dichalcogenides like molybdenum disulphide.  Selected content free online for a limited time.      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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