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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 24 λεπτά 26 δευτερόλεπτα

Constant-pressure sound waves in non-Hermitian disordered media

Δευ, 02/07/2018 - 00:00

Constant-pressure sound waves in non-Hermitian disordered media

Constant-pressure sound waves in non-Hermitian disordered media, Published online: 02 July 2018; doi:10.1038/s41567-018-0188-7

Perfect transmission of sound waves through a strongly disordered environment is demonstrated using a set of speakers that provide exactly the right input to counteract scattering by the disorder. These principles can also be applied to light.

Wrinkled clean

Δευ, 02/07/2018 - 00:00

Wrinkled clean

Wrinkled clean, Published online: 02 July 2018; doi:10.1038/s41567-018-0212-y

Understanding how natural surfaces repel foulants by wrinkling seems like a simple matter of elasticity. But the nonlinear behaviours that emerge from dimensional effects make for some intriguing new physics.

Electrically switchable Berry curvature dipole in the monolayer topological insulator WTe<sub>2</sub>

Δευ, 02/07/2018 - 00:00

Electrically switchable Berry curvature dipole in the monolayer topological insulator WTe2

Electrically switchable Berry curvature dipole in the monolayer topological insulator WTe<sub>2</sub>, Published online: 02 July 2018; doi:10.1038/s41567-018-0189-6

Optoelectronic experiments show that a monolayer of WTe2 is a material that simultaneously has topological electronic states and electron wavefunctions with a dipole in their Berry curvature.

Even-denominator fractional quantum Hall states at an isospin transition in monolayer graphene

Δευ, 02/07/2018 - 00:00

Even-denominator fractional quantum Hall states at an isospin transition in monolayer graphene

Even-denominator fractional quantum Hall states at an isospin transition in monolayer graphene, Published online: 02 July 2018; doi:10.1038/s41567-018-0190-0

Quantum Hall states are observed in monolayer graphene at even-denominator fractional filling of the lowest Landau level. This is linked to transitions in the spin and valley structure of the ground state.

United in a monolayer

Δευ, 02/07/2018 - 00:00

United in a monolayer

United in a monolayer, Published online: 02 July 2018; doi:10.1038/s41567-018-0196-7

Recent experiments demonstrate that effects arising from quantum geometrical phases and band structure topology can coexist in two-dimensional materials, and can be addressed via optoelectronic experiments.

Topography-driven surface renewal

Δευ, 02/07/2018 - 00:00

Topography-driven surface renewal

Topography-driven surface renewal, Published online: 02 July 2018; doi:10.1038/s41567-018-0193-x

Natural surfaces better their synthetic counterparts at coping with biofouling. A characterization of topography-induced delamination reveals a mechanism whereby elastic energy drives the crack propagation that facilitates surface renewal.

Laser cooling of optically trapped molecules

Δευ, 25/06/2018 - 00:00

Laser cooling of optically trapped molecules

Laser cooling of optically trapped molecules, Published online: 25 June 2018; doi:10.1038/s41567-018-0191-z

Laser cooling of optically trapped diatomic molecules CaF to sub-Doppler temperatures has been achieved. The technique provides an alternative approach towards the production of ultracold polar molecules.

Observation of two independent skyrmion phases in a chiral magnetic material

Δευ, 25/06/2018 - 00:00

Observation of two independent skyrmion phases in a chiral magnetic material

Observation of two independent skyrmion phases in a chiral magnetic material, Published online: 25 June 2018; doi:10.1038/s41567-018-0184-y

A new type of skyrmion is identified in the chiral magnetic material Cu2OSeO3 at low temperature. This is the first time that a single material has been shown to exhibit more than one distinct skyrmion phase.

Author Correction: Quantum electrodynamics and the proton size

Τετ, 20/06/2018 - 00:00

Author Correction: Quantum electrodynamics and the proton size

Author Correction: Quantum electrodynamics and the proton size, Published online: 20 June 2018; doi:10.1038/s41567-018-0211-z

Author Correction: Quantum electrodynamics and the proton size

Verticalization of bacterial biofilms

Δευ, 18/06/2018 - 00:00

Verticalization of bacterial biofilms

Verticalization of bacterial biofilms, Published online: 18 June 2018; doi:10.1038/s41567-018-0170-4

Bacterial biofilms can transition from a surface-bound collective to form vertical clusters. The length-dependent mechanism revealed here triggers avalanches of cooperative reorientation that culminate in verticalization via an inverse domino effect.

Publisher Correction: Synthetic antiferromagnetic spintronics

Δευ, 18/06/2018 - 00:00

Publisher Correction: Synthetic antiferromagnetic spintronics

Publisher Correction: Synthetic antiferromagnetic spintronics, Published online: 18 June 2018; doi:10.1038/s41567-018-0195-8

Publisher Correction: Synthetic antiferromagnetic spintronics

Strong coupling between photons of two light fields mediated by one atom

Δευ, 18/06/2018 - 00:00

Strong coupling between photons of two light fields mediated by one atom

Strong coupling between photons of two light fields mediated by one atom, Published online: 18 June 2018; doi:10.1038/s41567-018-0181-1

By coupling photons in two distinguishable modes to separate transitions of a single atom, strong correlations between photons are created. The technique makes all-optical switching and sensing possible at the single-photon level.

Publisher Correction: Amplification of intense light fields by nearly free electrons

Δευ, 18/06/2018 - 00:00

Publisher Correction: Amplification of intense light fields by nearly free electrons

Publisher Correction: Amplification of intense light fields by nearly free electrons, Published online: 18 June 2018; doi:10.1038/s41567-018-0208-7

Publisher Correction: Amplification of intense light fields by nearly free electrons

Super spins

Δευ, 11/06/2018 - 00:00

Super spins

Super spins, Published online: 11 June 2018; doi:10.1038/s41567-018-0182-0

Applications of spintronics often require angular momentum to be moved from place to place. A possible observation of spin superfluidity may point the way toward the transport of spin angular momentum across an insulating sample with no dissipation or energy loss.

Long-distance spin transport through a graphene quantum Hall antiferromagnet

Δευ, 11/06/2018 - 00:00

Long-distance spin transport through a graphene quantum Hall antiferromagnet

Long-distance spin transport through a graphene quantum Hall antiferromagnet, Published online: 11 June 2018; doi:10.1038/s41567-018-0161-5

Spins are transmitted over a distance of 5 μm through a piece of antiferromagnetic graphene. This shows that graphene can be a platform to explore the fundamental physics of spin transport in antiferromagnets for application in spintronics.

Observation of Feshbach resonances between alkali and closed-shell atoms

Δευ, 11/06/2018 - 00:00

Observation of Feshbach resonances between alkali and closed-shell atoms

Observation of Feshbach resonances between alkali and closed-shell atoms, Published online: 11 June 2018; doi:10.1038/s41567-018-0169-x

Magnetically tunable scattering resonances between strontium and rubidium atoms are observed in an ultracold experiment, opening the door to exploring quantum many-body physics with new designed molecules.

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