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Nature Physics offers a unique mix of news and reviews alongside top-quality research papers. Published monthly, in print and online, the journal reflects the entire spectrum of physics, pure and applied.
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A moiré foray

Δευ, 13/05/2019 - 00:00

A moiré foray

A moiré foray, Published online: 13 May 2019; doi:10.1038/s41567-019-0541-5

The transport properties of many two-dimensional systems are strongly affected by the proximity of a periodic pattern. Colloidal particles are now shown to have preferred sliding routes due to competing symmetries between two unmatched crystalline surfaces.

Identifying topological order through unsupervised machine learning

Δευ, 06/05/2019 - 00:00

Identifying topological order through unsupervised machine learning

Identifying topological order through unsupervised machine learning, Published online: 06 May 2019; doi:10.1038/s41567-019-0512-x

Machine learning techniques have latterly gained currency in condensed-matter physics, for example by identifying phase transitions. An unsupervised machine learning algorithm that identifies topological order is now demonstrated.

Anomalous asymmetry

Δευ, 06/05/2019 - 00:00

Anomalous asymmetry

Anomalous asymmetry, Published online: 06 May 2019; doi:10.1038/s41567-019-0523-7

A measurement based on quantum entanglement of the parameter describing the asymmetry of the Λ hyperon decay is inconsistent with the current world average. This shows that relying on previous measurements can be hazardous.

Polarization and entanglement in baryon–antibaryon pair production in electron–positron annihilation

Δευ, 06/05/2019 - 00:00

Polarization and entanglement in baryon–antibaryon pair production in electron–positron annihilation

Polarization and entanglement in baryon–antibaryon pair production in electron–positron annihilation, Published online: 06 May 2019; doi:10.1038/s41567-019-0494-8

The decay asymmetry and helicity phase of polarized baryon–antibaryon pairs are measured at the BESIII experiment, testing charge–parity symmetry and revealing a discrepancy of the Λ → pπ− decay asymmetry with respect to the current world average.

Chiral topological superconductivity arising from the interplay of geometric phase and electron correlation

Δευ, 06/05/2019 - 00:00

Chiral topological superconductivity arising from the interplay of geometric phase and electron correlation

Chiral topological superconductivity arising from the interplay of geometric phase and electron correlation, Published online: 06 May 2019; doi:10.1038/s41567-019-0517-5

Renormalization group calculations incorporate band structure and interaction effects on an equal footing. Applying this methodology to Ge-doped Pb3Bi shows that this material is a chiral topological superconductor and hosts Majorana fermions.

Mechanochemical self-organization determines search pattern in migratory cells

Δευ, 06/05/2019 - 00:00

Mechanochemical self-organization determines search pattern in migratory cells

Mechanochemical self-organization determines search pattern in migratory cells, Published online: 06 May 2019; doi:10.1038/s41567-019-0505-9

A study of how migrating cells optimize their search efficiency in the absence of directional cues reveals a self-organizing system that mediates superdiffusive motion—and sheds light on how cells navigate noisy environments.

Chiral topological semimetal with multifold band crossings and long Fermi arcs

Δευ, 06/05/2019 - 00:00

Chiral topological semimetal with multifold band crossings and long Fermi arcs

Chiral topological semimetal with multifold band crossings and long Fermi arcs, Published online: 06 May 2019; doi:10.1038/s41567-019-0511-y

AlPt is shown to be a chiral topological material with four-fold and six-fold degeneracies in the band structure. Fermi arc edge states span the whole Brillouin zone and their dispersion enables identification of the handedness of the chiral material.

Scaling laws indicate distinct nucleation mechanisms of holes in the nuclear lamina

Δευ, 06/05/2019 - 00:00

Scaling laws indicate distinct nucleation mechanisms of holes in the nuclear lamina

Scaling laws indicate distinct nucleation mechanisms of holes in the nuclear lamina, Published online: 06 May 2019; doi:10.1038/s41567-019-0506-8

The structural integrity of a cell’s nucleus is maintained by a polymer network known as the nuclear lamina. A simple biophysical theory reveals two regimes by which this network can rupture, depending on the structure of the nuclear envelope.

Moonstone

Πέμ, 02/05/2019 - 00:00

Moonstone

Moonstone, Published online: 02 May 2019; doi:10.1038/s41567-019-0528-2

Moonstone

A hundred years of the first experimental test of general relativity

Πέμ, 02/05/2019 - 00:00

A hundred years of the first experimental test of general relativity

A hundred years of the first experimental test of general relativity, Published online: 02 May 2019; doi:10.1038/s41567-019-0519-3

Einstein’s general theory of relativity is one of the most important accomplishments in the history of science. We reassess the importance of one of the expeditions that made its experimental verification possible — a story that involves a sense of adventure and scientific ingenuity in equal measure.

Disordered Majoranas

Πέμ, 02/05/2019 - 00:00

Disordered Majoranas

Disordered Majoranas, Published online: 02 May 2019; doi:10.1038/s41567-019-0526-4

Disordered Majoranas

The end of artefacts

Πέμ, 02/05/2019 - 00:00

The end of artefacts

The end of artefacts, Published online: 02 May 2019; doi:10.1038/s41567-019-0514-8

Bill Phillips celebrates a beautiful reformation of the metric system, by which scientists measure the physical world, coming into effect on World Metrology Day, 20 May 2019.

In search of lost memories

Πέμ, 02/05/2019 - 00:00

In search of lost memories

In search of lost memories, Published online: 02 May 2019; doi:10.1038/s41567-019-0521-9

In search of lost memories

A heat wave

Πέμ, 02/05/2019 - 00:00

A heat wave

A heat wave, Published online: 02 May 2019; doi:10.1038/s41567-019-0529-1

A heat wave

A century of correct predictions

Πέμ, 02/05/2019 - 00:00

A century of correct predictions

A century of correct predictions, Published online: 02 May 2019; doi:10.1038/s41567-019-0524-6

General relativity was first experimentally verified in 1919. On the centennial of this occasion, we celebrate the scientific progress fuelled by subsequent efforts at verifying its predictions, from time dilation to the observation of the shadow of a black hole.

Universe in a bottle

Πέμ, 02/05/2019 - 00:00

Universe in a bottle

Universe in a bottle, Published online: 02 May 2019; doi:10.1038/s41567-019-0527-3

Universe in a bottle

Metamagnetic texture in a polar antiferromagnet

Δευ, 29/04/2019 - 00:00

Metamagnetic texture in a polar antiferromagnet

Metamagnetic texture in a polar antiferromagnet, Published online: 29 April 2019; doi:10.1038/s41567-019-0501-0

Small-angle neutron scattering experiments of the layered antiferromagnet Ca3Ru2O7 reveal a metamagnetic spin texture that is indicative of an extraordinary coexistence of spin orders belonging to different symmetries.

Antiferromagnetism with a twist

Δευ, 29/04/2019 - 00:00

Antiferromagnetism with a twist

Antiferromagnetism with a twist, Published online: 29 April 2019; doi:10.1038/s41567-019-0522-8

A variety of magnetic structures based around ferromagnetic spin spirals have been the topic of intense study over the past decade. The discovery of spin spirals that arise from antiferromagnetic order has just broadened the horizons for magnetic possibilities even further.

Putting the gap on the map

Δευ, 22/04/2019 - 00:00

Putting the gap on the map

Putting the gap on the map, Published online: 22 April 2019; doi:10.1038/s41567-019-0513-9

The measurement of the charge density wave energy gap in high-temperature superconducting cuprates uncovers new links between competing states.

Intimate link between charge density wave, pseudogap and superconducting energy scales in cuprates

Δευ, 22/04/2019 - 00:00

Intimate link between charge density wave, pseudogap and superconducting energy scales in cuprates

Intimate link between charge density wave, pseudogap and superconducting energy scales in cuprates, Published online: 22 April 2019; doi:10.1038/s41567-019-0509-5

The authors show that the energy gap of the charge density wave is strongly linked to that of the superconducting and pseudogap in several cuprates. This indicates that the same microscopic physics may drive all three phases.

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