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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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Fatal decision made under pressure

Πέμ, 20/05/2021 - 00:00

Nature Physics, Published online: 20 May 2021; doi:10.1038/s41567-021-01239-7

A life-or-death choice determines the fate of reproductive cells. It has long been assumed that the choice is genetically regulated, but it now seems that the decision may instead be controlled by intracellular pressure.

Turn towards the crowd

Πέμ, 20/05/2021 - 00:00

Nature Physics, Published online: 20 May 2021; doi:10.1038/s41567-021-01240-0

A type of polar self-propelled particle generates a torque that makes it naturally drawn to higher-density areas. The collective behaviour this induces in assemblies of particles constitutes a new form of phase separation in active fluids.

Active phase separation by turning towards regions of higher density

Πέμ, 20/05/2021 - 00:00

Nature Physics, Published online: 20 May 2021; doi:10.1038/s41567-021-01238-8

Self-propelled particles are shown to orient themselves towards areas of high density, phase separating into fluid-like clusters. This behaviour is unique to active systems, forming a distinct class of motility-induced phase separation.

A hydraulic instability drives the cell death decision in the nematode germline

Πέμ, 20/05/2021 - 00:00

Nature Physics, Published online: 20 May 2021; doi:10.1038/s41567-021-01235-x

During the early development of an organism, some cells are fated to grow while other seemingly healthy cells die. Experiments and theory now reveal that a hydraulic instability is the key to this decision.

Author Correction: The microscopic role of deformation in the dynamics of soft colloids

Τετ, 19/05/2021 - 00:00

Nature Physics, Published online: 19 May 2021; doi:10.1038/s41567-021-01252-w

Author Correction: The microscopic role of deformation in the dynamics of soft colloids

Free electron to electride transition in dense liquid potassium

Δευ, 17/05/2021 - 00:00

Nature Physics, Published online: 17 May 2021; doi:10.1038/s41567-021-01244-w

Alkali metals at high pressures have a liquid–liquid transition that is difficult to study in detail. Numerical calculations now suggest that the higher-pressure state is an electride liquid, in which electrons behave like localized anions.

Author Correction: Generalized superradiance for producing broadband coherent radiation with transversely modulated arbitrarily diluted bunches

Δευ, 17/05/2021 - 00:00

Nature Physics, Published online: 17 May 2021; doi:10.1038/s41567-021-01257-5

Author Correction: Generalized superradiance for producing broadband coherent radiation with transversely modulated arbitrarily diluted bunches

Addendum: Topological superconductivity: Quantized, finally

Παρ, 14/05/2021 - 00:00

Nature Physics, Published online: 14 May 2021; doi:10.1038/s41567-021-01261-9

Addendum: Topological superconductivity: Quantized, finally

More speed out of the quantum gate

Παρ, 14/05/2021 - 00:00

Nature Physics, Published online: 14 May 2021; doi:10.1038/s41567-021-01195-2

Quantum gates on trapped ions may be quicker and more reliable owing to squeezing of their vibrational motion. A threefold drop in operation time shows potential for applications in quantum technologies.

Oscillations of the thermal conductivity in the spin-liquid state of α-RuCl<sub>3</sub>

Πέμ, 13/05/2021 - 00:00

Nature Physics, Published online: 13 May 2021; doi:10.1038/s41567-021-01243-x

Transport measurements on the Kitaev quantum spin liquid candidate α-RuCl3 subjected to a magnetic field reveal oscillating behaviour in its thermal conductivity, reminiscent of Shubnikov de Haas oscillations in metals.

Topological Shiba bands in artificial spin chains on superconductors

Πέμ, 13/05/2021 - 00:00

Nature Physics, Published online: 13 May 2021; doi:10.1038/s41567-021-01234-y

Chains of magnetic atoms on the surface of a superconductor are shown to have topologically non-trivial bands that could host Majorana bound states.

Quantum amplification of boson-mediated interactions

Πέμ, 13/05/2021 - 00:00

Nature Physics, Published online: 13 May 2021; doi:10.1038/s41567-021-01237-9

Many applications of quantum systems require them to be joined by strong, controllable interactions. Exploiting the physics of quantum squeezing can amplify the strength of boson-mediated interactions, yielding higher performance.

Detect, don’t destroy

Τρί, 11/05/2021 - 00:00

Nature Physics, Published online: 11 May 2021; doi:10.1038/s41567-021-01250-y

Detect, don’t destroy

Don’t bet on it

Τρί, 11/05/2021 - 00:00

Nature Physics, Published online: 11 May 2021; doi:10.1038/s41567-021-01248-6

Don’t bet on it

A love letter to Black feminist physicists

Τρί, 11/05/2021 - 00:00

Nature Physics, Published online: 11 May 2021; doi:10.1038/s41567-021-01241-z

A love letter to Black feminist physicists

A moment for muons

Τρί, 11/05/2021 - 00:00

Nature Physics, Published online: 11 May 2021; doi:10.1038/s41567-021-01251-x

The recent measurement of the muon’s anomalous magnetic moment increases the tension with predictions from theory. Or does it?

A constant by any other name

Τρί, 11/05/2021 - 00:00

Nature Physics, Published online: 11 May 2021; doi:10.1038/s41567-021-01242-y

As the namesake of a variety of constants, distributions and equations, Ludwig Boltzmann has earned his place in the physics hall of fame. But as Ankita Anirban reveals, he cannot take sole credit for the most famous constant bearing his name.

Competition and interplay between topology and quasi-periodic disorder in Thouless pumping of ultracold atoms

Πέμ, 29/04/2021 - 00:00

Nature Physics, Published online: 29 April 2021; doi:10.1038/s41567-021-01229-9

Topologically protected charge transport, known as Thouless pumping, is realized with cold atoms trapped in quasi-periodic disordered potentials. The pumping is disorder-dependent, illustrating the influence of disorder on the topological properties.

Learning models of quantum systems from experiments

Πέμ, 29/04/2021 - 00:00

Nature Physics, Published online: 29 April 2021; doi:10.1038/s41567-021-01201-7

Quantum systems make it challenging to determine candidate Hamiltonians from experimental data. An automated protocol is presented and its capabilities to infer the correct Hamiltonian are demonstrated in a nitrogen-vacancy centre set-up.

Absolute <sup>13</sup>C/<sup>12</sup>C isotope amount ratio for Vienna PeeDee Belemnite from infrared absorption spectroscopy

Δευ, 26/04/2021 - 00:00

Nature Physics, Published online: 26 April 2021; doi:10.1038/s41567-021-01226-y

Isotope ratio measurements are complicated by the instabilities of composition in reference samples. Now a calibration-free method relying on infrared spectroscopy provides measurements that are traceable to International System of Units standards.

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