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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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Stress relaxation in epithelial monolayers is controlled by the actomyosin cortex

Mon, 13/05/2019 - 00:00

Stress relaxation in epithelial monolayers is controlled by the actomyosin cortex

Stress relaxation in epithelial monolayers is controlled by the actomyosin cortex, Published online: 13 May 2019; doi:10.1038/s41567-019-0516-6

Stress relaxation in cell monolayers shows remarkable similarities with that of single cells, suggesting the rheology of epithelial tissues is mediated by the actomyosin cortex—with dynamics reminiscent of those on a cellular level.

The quest for quantum degeneracy

Mon, 13/05/2019 - 00:00

The quest for quantum degeneracy

The quest for quantum degeneracy, Published online: 13 May 2019; doi:10.1038/s41567-019-0531-7

While Bose–Einstein condensates of atoms were achieved in the mid-1990s, extending the regime of quantum degeneracy to polar molecules took another two decades of dedicated work. The researchers that contributed to this achievement span many generations of students in many different laboratories around the world.

Orientational and directional locking of colloidal clusters driven across periodic surfaces

Mon, 13/05/2019 - 00:00

Orientational and directional locking of colloidal clusters driven across periodic surfaces

Orientational and directional locking of colloidal clusters driven across periodic surfaces, Published online: 13 May 2019; doi:10.1038/s41567-019-0515-7

Colloidal clusters are shown to undergo directional locking when driven across a patterned surface. The role of the Fourier components of the particle–surface interaction suggests a means of leveraging this behaviour for nanoscale manipulation.

A moiré foray

Mon, 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

Mon, 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

Mon, 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

Mon, 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

Mon, 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

Mon, 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

Mon, 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

Mon, 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

Thu, 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

Thu, 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

Thu, 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

Thu, 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

Thu, 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

Thu, 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

Thu, 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

Thu, 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

Mon, 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.

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