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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.
Ενημερώθηκε: πριν από 49 λεπτά 17 δευτερόλεπτα

Nematic transition and nanoscale suppression of superconductivity in Fe(Te,Se)

Πέμ, 10/06/2021 - 00:00

Nature Physics, Published online: 10 June 2021; doi:10.1038/s41567-021-01254-8

The interplay of superconductivity and nematicity of electrons remains unclear in a wide range of materials. Now, more evidence emerges that nematic fluctuations can be pinned into a static phase by disorder, which hinders the superconductivity.

Sources in the skies

Τετ, 09/06/2021 - 00:00

Nature Physics, Published online: 09 June 2021; doi:10.1038/s41567-021-01274-4

Sources in the skies

Shear coincidence

Τετ, 09/06/2021 - 00:00

Nature Physics, Published online: 09 June 2021; doi:10.1038/s41567-021-01272-6

Shear coincidence

Prosperous gold

Τετ, 09/06/2021 - 00:00

Nature Physics, Published online: 09 June 2021; doi:10.1038/s41567-021-01273-5

Prosperous gold

Second sound seen

Τετ, 09/06/2021 - 00:00

Nature Physics, Published online: 09 June 2021; doi:10.1038/s41567-021-01276-2

The two-fluid model of superfluids predicts a second, quantum mechanical form of sound. Ultracold atom experiments have now measured second sound in the unusual two-dimensional superfluid described by the Berezinskii–Kosterlitz–Thouless transition.

The big world of tiny things for little people

Τετ, 09/06/2021 - 00:00

Nature Physics, Published online: 09 June 2021; doi:10.1038/s41567-021-01264-6

The big world of tiny things for little people

Attempted reconnection

Τετ, 09/06/2021 - 00:00

Nature Physics, Published online: 09 June 2021; doi:10.1038/s41567-021-01262-8

Attempted reconnection

Fluid flows on many scales

Τετ, 09/06/2021 - 00:00

Nature Physics, Published online: 09 June 2021; doi:10.1038/s41567-021-01258-4

A single equation can describe how fluids flow across a wide range of length scales, from ocean currents to swimming algae. The difference merely lies in the Reynolds number, says Julia Yeomans.

Non-local oddities

Τετ, 09/06/2021 - 00:00

Nature Physics, Published online: 09 June 2021; doi:10.1038/s41567-021-01281-5

Introducing non-local effects to metamaterials increases the complexity of their dispersion relation, which allows carefully designed elastic structures to mimic the peculiar roton behaviour of correlated quantum superfluids.

Author Correction: Strong correlations and orbital texture in single-layer 1T-TaSe<sub>2</sub>

Πέμ, 03/06/2021 - 00:00

Nature Physics, Published online: 03 June 2021; doi:10.1038/s41567-021-01283-3

Author Correction: Strong correlations and orbital texture in single-layer 1T-TaSe2

Publisher Correction: Inside quantum black boxes

Πέμ, 03/06/2021 - 00:00

Nature Physics, Published online: 03 June 2021; doi:10.1038/s41567-021-01284-2

Publisher Correction: Inside quantum black boxes

Reflections off a relativistic mirror

Πέμ, 03/06/2021 - 00:00

Nature Physics, Published online: 03 June 2021; doi:10.1038/s41567-021-01259-3

High-order harmonics of laser pulses yield spectral components with shorter wavelength and duration and tighter focus than the original pulse. Precise spatiotemporal characterization of this radiation from a relativistic plasma mirror is relevant for ultrafast science.

Spatio-temporal characterization of attosecond pulses from plasma mirrors

Πέμ, 03/06/2021 - 00:00

Nature Physics, Published online: 03 June 2021; doi:10.1038/s41567-021-01253-9

Relativistic mirrors are a promising tool to reach laser intensities up to the Schwinger limit. Such a mirror is created in ultra-intense laser–solid interactions, and its temporal and spatial effects on the reflected laser beam are characterized.

Best practice for instructional labs

Δευ, 31/05/2021 - 00:00

Nature Physics, Published online: 31 May 2021; doi:10.1038/s41567-021-01256-6

Undergraduate labs are more effective and more positive for students if they encourage investigation and decision-making, not verification of textbook concepts.

Nucleon spins surprise

Δευ, 31/05/2021 - 00:00

Nature Physics, Published online: 31 May 2021; doi:10.1038/s41567-021-01263-7

Recent measurements of observables related to proton and neutron spin properties at low energies are in disagreement with the available theoretical predictions, and continue to challenge nuclear experimentalists and theorists alike.

Measurement of the generalized spin polarizabilities of the neutron in the low-<i>Q</i><sup>2</sup> region

Δευ, 31/05/2021 - 00:00

Nature Physics, Published online: 31 May 2021; doi:10.1038/s41567-021-01245-9

Measurements of observables sensitive to the neutron’s spin precession are extended to a regime that probes distances of the size of the nucleon. They are found to disagree with predictions from chiral effective field theory.

Quantum many-body scars and weak breaking of ergodicity

Πέμ, 27/05/2021 - 00:00

Nature Physics, Published online: 27 May 2021; doi:10.1038/s41567-021-01230-2

Most large quantum systems are ergodic, meaning that over time they forget their initial conditions and thermalize. This article reviews our understanding of seemingly ergodic systems that in fact have some long-lived, non-thermal states.

Viscophobic turning dictates microalgae transport in viscosity gradients

Πέμ, 27/05/2021 - 00:00

Nature Physics, Published online: 27 May 2021; doi:10.1038/s41567-021-01247-7

Microswimmers tend to accumulate in regions where their speed is significantly reduced, but experimental and numerical evidence now points towards a viscophobic turning mechanism that biases certain microalgae away from high-viscosity areas.

Inside quantum black boxes

Δευ, 24/05/2021 - 00:00

Nature Physics, Published online: 24 May 2021; doi:10.1038/s41567-021-01246-8

On the face of it, characterizing quantum dynamics in the exponentially large Hilbert space of a many-body system might require prohibitively many experiments. In fact, the locality of physical interactions means that it can be done efficiently.

Sample-efficient learning of interacting quantum systems

Δευ, 24/05/2021 - 00:00

Nature Physics, Published online: 24 May 2021; doi:10.1038/s41567-021-01232-0

Learning the Hamiltonian of a complex many-body system is hard, but now there is proof that it can be done in a way where the number of required measurements scales as a polynomial of the number of particles.

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