Friday, June 2, 2017

Nature Physics June Issue

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Nature Physics


Collection: On Growth and Form Centenary

Join Nature in celebrating the centenary of D'Arcy Wentworth Thompson's seminal publication "On Growth and Form". We present an online collection of research and comment reflecting the diversity of explorative activity across the physical and biological sciences over the past 100 years. 

Access the On Growth and Form Centenary Collection

June 2017 Volume 13, Issue 6

Books and Arts
Research Highlights
News and Views
Measure for Measure
Recommend to library



One ID to rule them all   p519
Some Springer Nature journals, including Nature Physics, are mandating Open Researcher and Contributor IDs (ORCIDs) for the corresponding authors of accepted papers. We provide some context to this initiative.



Boundary effects on currents around ciliated larvae   pp520 - 521
George von Dassow, Richard Emlet and Daniel Grünbaum

See also: Correspondence by Gilpin et al.

Reply to 'Boundary effects on currents around ciliated larvae'   pp521 - 522
William Gilpin, Vivek N. Prakash and Manu Prakash

See also: Correspondence by von Dassow et al.



Four decades of open science   pp523 - 525
Bernard L. Hecker
INSPIRE, the central information resource of the high-energy physics community, pioneered the open dissemination of scientific literature. It has been evolving to keep up with the new technologies and it is not slowing down.



The origin of cell division   p526
Mark Buchanan

Books and Arts


The right answer   p527
Iulia Georgescu reviews We Have No Idea: A Guide to the Unknown Universe by Jorge Cham and Daniel Whiteson

Exhibition: The road to bionic man   pp527 - 528

Research Highlights


Special relativity: Ticking clocks | Complexity: Minority report | Topological materials: Top of the hour | Ultracold gases: Search for the seed | Collective phenomena: Honeybee house-hunt

News and Views


Axion searches: Exciting times   pp530 - 531
Maurizio Giannotti
While axions remain elusive, the CERN Axion Solar Telescope has now reached the interesting region where physics beyond the standard model could be glimpsed.

See also: Article by Anastassopoulos et al.

Particle physics: Alice in strangeland   pp531 - 532
Francesco Becattini
An enhanced production of particles with strange quarks has been observed in high-multiplicity proton–proton collisions — an important clue to understand how strange quarks form, and perhaps a hint of the quark–gluon plasma.

See also: Letter by Adam et al.

Topological photonics: Come to light   pp532 - 533
Alexander B. Khanikaev
Topological concepts have been demonstrated in microwave photonic systems but laser-written waveguides show the way to topological physics for light at optical frequencies.

See also: Article by Noh et al.

Quantum electrodynamics: Hyperfine puzzle?   pp533 - 534
Jean-Philippe Karr
Improved-accuracy measurements of the ground-state hyperfine splitting in highly charged bismuth ions reveal a surprising discrepancy with the predictions of quantum electrodynamics.

JOBS of the week
Faculty Positions in the Department of Physics
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Postdoctoral Research Associate – Radiation Physics
University of Sydney
Professorship W 2 of Experimental Physics
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Assistant Professor, Tier II Canada Research Chair, High Precision Measurements with Exotic Atoms, Department of Physics & Astronomy
University of Calgary
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Enhanced production of multi-strange hadrons in high-multiplicity proton–proton collisions OPEN   pp535 - 539
ALICE Collaboration
Quark–gluon plasma is an exotic state of matter that can emerge in heavy nuclei high-energy collisions. The ALICE collaboration reports the first observation of strangeness enhancement in proton–proton collisions, a possible signature of this state.

See also: News and Views by Becattini

Weak-value amplification of the nonlinear effect of a single photon   pp540 - 544
Matin Hallaji, Amir Feizpour, Greg Dmochowski, Josiah Sinclair and Aephraim M. Steinberg
Using two entangled optical beams and post-selection, a single photon can have the same effect as eight photons in terms of the induced phase shift. This example illustrates the power of the so-called weak-value amplification.

Experimental measurement of the Berry curvature from anomalous transport   pp545 - 550
Martin Wimmer, Hannah M. Price, Iacopo Carusotto and Ulf Peschel
The Berry curvature is essential to the study of the topological properties of a system, be it solid-state, atomic or photonic. In 1D photonic lattices there is a new clever way of measuring the Berry curvature.

Experimental quantum Hamiltonian learning   pp551 - 555
Jianwei Wang, Stefano Paesani, Raffaele Santagati, Sebastian Knauer, Antonio A. Gentile et al.
With the help of a quantum simulator and Bayesian inference it is possible to determine the unknown Hamiltonian of a quantum system. An experiment demonstrates this using a photonic quantum simulator and a solid-state system.

Entanglement area law in superfluid 4He   pp556 - 558
C. M. Herdman, P.-N. Roy, R. G. Melko and A. Del Maestro
When the entropy of a system scales as a function of its surface area, rather than its volume, it is said to obey an entropy area law. Now, an area law is shown to exist numerically in the entanglement entropy of superfluid helium.

Waveform measurement of charge- and spin-density wavepackets in a chiral Tomonaga–Luttinger liquid   pp559 - 562
M. Hashisaka, N. Hiyama, T. Akiho, K. Muraki and T. Fujisawa
The spatial separation of charge and spin densities in one-dimensional electron systems is the hallmark of Tomonaga–Luttinger physics. Waveform measurements now provide direct evidence for spin–charge separation.

Signatures of interaction-induced helical gaps in nanowire quantum point contacts   pp563 - 567
S. Heedt, N. Traverso Ziani, F. Crépin, W. Prost, St. Trellenkamp et al.
Signatures of spin–momentum-locked gap states in nanowire quantum point contacts that have all-electrical origin could provide the conditions for the quasiparticle excitations required for topological quantum computing.

Para-hydrogen raser delivers sub-millihertz resolution in nuclear magnetic resonance   pp568 - 572
Martin Suefke, Sören Lehmkuhl, Alexander Liebisch, Bernhard Blümich and Stephan Appelt
A method for narrowing the NMR linewidth of specific molecules to the sub-millihertz range — two orders of magnitude below the natural linewidth — could open up new avenues for molecular characterization.

Collisionless momentum transfer in space and astrophysical explosions   pp573 - 577
A. S. Bondarenko, D. B. Schaeffer, E. T. Everson, S. E. Clark, B. R. Lee et al.
Larmor coupling is a collisionless momentum exchange mechanism believed to occur in various astrophysical and space-plasma environments. The phenomenon is now observed in a laboratory experiment.

Bulk rectification effect in a polar semiconductor   pp578 - 583
T. Ideue, K. Hamamoto, S. Koshikawa, M. Ezawa, S. Shimizu et al.
Electrical rectification is usually achieved by layering p-type and n-type materials, but experiments now demonstrate rectification in a bulk polar semiconductor that has inversion-symmetry breaking and strong Rashba spin–orbit coupling.



New CAST limit on the axion–photon interaction OPEN   pp584 - 590
CAST Collaboration
Axions are hypothetical light particles that could explain the dark matter. They could be produced in the interior of the Sun and the CERN Axion Solar Telescope sets the best limit on how strongly axions can interact with light.

See also: News and Views by Giannotti

Ultrafast terahertz control of extreme tunnel currents through single atoms on a silicon surface   pp591 - 598
Vedran Jelic, Krzysztof Iwaszczuk, Peter H. Nguyen, Christopher Rathje, Graham J. Hornig et al.
Controlling electric currents on the atomic scale requires being able to handle the ultrafast timescales involved. Now, experiments have demonstrated the feasibility of terahertz scanning tunnelling microscopy as a method for doing just that.

Orthogonal magnetization and symmetry breaking in pyrochlore iridate Eu2Ir2O7   pp599 - 603
Tian Liang, Timothy H. Hsieh, Jun J. Ishikawa, Satoru Nakatsuji, Liang Fu et al.
A torque magnetometry study of the pyrochlore iridate Eu2Ir2O7 reveals an unusual symmetry-breaking effect that persists above the Neel temperature of this antiferromagnet.

Electron–hole exchange blockade and memory-less recombination in photoexcited films of colloidal quantum dots   pp604 - 610
Andrew F. Fidler, Jianbo Gao and Victor I. Klimov
Understanding the recombination dynamics in quantum dots is crucial for their use in optoelectronic devices. A photocurrent spectroscopy study shows how two distinct relaxation mechanisms are at play over different timescales.

Experimental observation of optical Weyl points and Fermi arc-like surface states    pp611 - 617
Jiho Noh, Sheng Huang, Daniel Leykam, Y. D. Chong, Kevin P. Chen et al.
Three-dimensional laser-written waveguide arrays are used to demonstrate type-II Weyl points, along with Fermi arc-like surface states, for light at optical wavelengths.

See also: News and Views by Khanikaev

Call for nominations: 2017 John Maddox Prize for Standing up for Science.

Recognising the work of individuals who promote science in the face of hostility. Winners will be announced at a reception in London, as well as in Nature, and will receive £2,000.

Closing date for nominations is 31st July 2017.

Click to learn more

Measure for Measure


Quantifying the quantum   p618
Stephan Schlamminger
Stephan Schlamminger looks at the origins of the Planck constant and its current role in redefining the kilogram.

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