A turbulence-based model of wind variations explains observed fluctuations in the power output from wind turbines.  

Synopsis on:
M. M. Bandi
Phys. Rev. Lett. 118, 028301 (2017)

A new ecosystem model, which accounts for metabolic trade-offs between coexisting species, shows that population diversity can increase even when species compete for the same limited nutrients, a finding that replicates nature.

Schematic diagrams showing possible quark propagation channels in pion-pion scattering.

A temperature induced phase transition occurs in water molecules packed single-file inside a carbon nanotube, as shown by photoluminescence measurements and first-principles calculations.

A theoretical analysis suggests that quantum mechanical violations of energy conservation may arise in some proposed models of quantum gravity. If realized in nature, these violations could manifest on cosmological scales as an effective cosmological constant.

No dark matter particles have been observed by two of the world’s most sensitive direct-detection experiments, casting doubt on a favored dark matter model.

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D. S. Akerib et al. (LUX Collaboration)
Phys. Rev. Lett. 118, 021303 (2017)

Conventional diffraction theory is predicted to break down for x-rays when spontaneous scattering is replaced by stimulated scattering by a thin film source. The stimulated diffraction pattern generated by the cooperative interaction of two coherent, unentangled photons results in self-focussing beyond the diffraction limit.  

The LHCb collaboration has identified four new structures in B+ decays that are likely to be tetraquark states. These tetraquark systems contain neither of the light u and d quarks.

R. Aaij et al. (LHCb Collaboration)
Phys. Rev. Lett. 118, 022003 (2017)

An enzyme in a chemical bath can act as an autonomous biochemical device that exploits information to do work.

A long-standing discrepancy between experiments and theory concerning the electronic properties of gold has now been resolved.

Synopsis on:
L. F. Pašteka et al.
Phys. Rev. Lett. 118, 023002 (2017)

A theoretical analysis of wave propagation through anisotropic media shows unexpected collective effects occur.

In January 2007, Dan Kapner and colleagues reported measurements of the gravitational force between two masses just 55 micrometers apart. As the masses were pushed together, the force increased exactly as theory predicted. The results ruled out some proposed modifications of Newtonian gravity involving “fat gravitons”, which required gravity’s effect to weaken at these very close distances.

Tests of the Gravitational Inverse-Square Law below the Dark-Energy Length Scale
D.J. Kapner et al.
Phys. Rev. Lett. 98 021101 (2007)

A molecular fountain, which launches molecules rather than atoms and allows them to be observed for long times, has been demonstrated for the first time.

Viewpoint on:
Cunfeng Cheng et al.
Phys. Rev. Lett. 117, 253201 (2016)