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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 25 λεπτά 37 δευτερόλεπτα

A good egg

Τετ, 02/05/2018 - 00:00

A good egg

A good egg, Published online: 02 May 2018; doi:10.1038/s41567-018-0142-8

A good egg

Sum it up

Τετ, 02/05/2018 - 00:00

Sum it up

Sum it up, Published online: 02 May 2018; doi:10.1038/s41567-018-0145-5

Sum it up

Ignorance as strength

Τετ, 02/05/2018 - 00:00

Ignorance as strength

Ignorance as strength, Published online: 02 May 2018; doi:10.1038/s41567-018-0133-9

Ignorance as strength

Balancing energy and mass with neutrons

Τετ, 02/05/2018 - 00:00

Balancing energy and mass with neutrons

Balancing energy and mass with neutrons, Published online: 02 May 2018; doi:10.1038/s41567-018-0132-x

Michael Jentschel and Klaus Blaum explain why the most famous equation of physics needs checking — and how to do it.

Understanding complexity

Τετ, 02/05/2018 - 00:00

Understanding complexity

Understanding complexity, Published online: 02 May 2018; doi:10.1038/s41567-018-0136-6

The criteria by which the validity of theories of complex systems are judged are more nuanced than a naive understanding of ‘the scientific method’ suggests.

What’s in the box?

Τετ, 02/05/2018 - 00:00

What’s in the box?

What’s in the box?, Published online: 02 May 2018; doi:10.1038/s41567-018-0143-7

What’s in the box?

The seduction of a scientist

Τετ, 02/05/2018 - 00:00

The seduction of a scientist

The seduction of a scientist, Published online: 02 May 2018; doi:10.1038/s41567-018-0130-z

The seduction of a scientist

Between a ripple and a dune

Δευ, 30/04/2018 - 00:00

Between a ripple and a dune

Between a ripple and a dune, Published online: 30 April 2018; doi:10.1038/s41567-018-0113-0

Bedforms in deserts include both small ripples and sand dunes that can reach tens to hundreds of metres in length — with seemingly little in between. It now looks as though intermediate-sized megaripples do appear if the conditions are just right.

Aeolian sand sorting and megaripple formation

Δευ, 30/04/2018 - 00:00

Aeolian sand sorting and megaripple formation

Aeolian sand sorting and megaripple formation, Published online: 30 April 2018; doi:10.1038/s41567-018-0106-z

Wind-mediated ripples form on a centimetre scale in sand, and in dunes on a scale spanning tens of metres, but patterns on intermediate scales are rare. A theory now fills the gap by predicting megaripples, which resemble structures seen on Mars.

Experimental signatures of emergent quantum electrodynamics in Pr<sub>2</sub>Hf<sub>2</sub>O<sub>7</sub>

Δευ, 30/04/2018 - 00:00

Experimental signatures of emergent quantum electrodynamics in Pr2Hf2O7

Experimental signatures of emergent quantum electrodynamics in Pr<sub>2</sub>Hf<sub>2</sub>O<sub>7</sub>, Published online: 30 April 2018; doi:10.1038/s41567-018-0116-x

A detailed and systematic neutron scattering study of rare-earth pyrochlore magnet Pr2Hf2O7 provides evidence for a quantum spin ice state, and emergent lattice quantum electrodynamics consistent with theoretical predictions.

Momentum-space indirect interlayer excitons in transition-metal dichalcogenide van der Waals heterostructures

Δευ, 30/04/2018 - 00:00

Momentum-space indirect interlayer excitons in transition-metal dichalcogenide van der Waals heterostructures

Momentum-space indirect interlayer excitons in transition-metal dichalcogenide van der Waals heterostructures, Published online: 30 April 2018; doi:10.1038/s41567-018-0123-y

A new type of exciton is observed in transition-metal dichalcogenide heterobilayers that is indirect in both real space and momentum space. It consists of a paired electron in MoS2 at the K point and hole spread across MoS2 and WSe2 at the Γ point.

Quantum supremacy, here we come

Δευ, 23/04/2018 - 00:00

Quantum supremacy, here we come

Quantum supremacy, here we come, Published online: 23 April 2018; doi:10.1038/s41567-018-0131-y

It’s still unclear which problems can be solved by near-term quantum computers that are beyond the reach of their classical counterparts. A new analysis makes a practical assessment of how sampling the output of a quantum circuit leaves supercomputers in the dust.

On-demand quantum state transfer and entanglement between remote microwave cavity memories

Δευ, 23/04/2018 - 00:00

On-demand quantum state transfer and entanglement between remote microwave cavity memories

On-demand quantum state transfer and entanglement between remote microwave cavity memories, Published online: 23 April 2018; doi:10.1038/s41567-018-0115-y

Sending quantum states as shaped microwave photonic wavepackets realizes on-demand, high-fidelity quantum state transfer and entanglement between two superconducting cavity quantum memories.

Dynamic force patterns promote collective cell movements during embryonic wound repair

Δευ, 23/04/2018 - 00:00

Dynamic force patterns promote collective cell movements during embryonic wound repair

Dynamic force patterns promote collective cell movements during embryonic wound repair, Published online: 23 April 2018; doi:10.1038/s41567-018-0111-2

The motor proteins and contractile forces involved in wound closure are both shown to be heterogeneously distributed around a wound. Theory suggests that this heterogeneity speeds up wound closure, as long as the proteins are mechanically regulated.

Characterizing quantum supremacy in near-term devices

Δευ, 23/04/2018 - 00:00

Characterizing quantum supremacy in near-term devices

Characterizing quantum supremacy in near-term devices, Published online: 23 April 2018; doi:10.1038/s41567-018-0124-x

As a benchmark for the development of a future quantum computer, sampling from random quantum circuits is suggested as a task that will lead to quantum supremacy—a calculation that cannot be carried out classically.

Author Correction: Quantum Landauer erasure with a molecular nanomagnet

Παρ, 20/04/2018 - 00:00

Author Correction: Quantum Landauer erasure with a molecular nanomagnet

Author Correction: Quantum Landauer erasure with a molecular nanomagnet, Published online: 20 April 2018; doi:10.1038/s41567-018-0140-x

Author Correction: Quantum Landauer erasure with a molecular nanomagnet

Publisher Correction: Geometric constraints during epithelial jamming

Πέμ, 19/04/2018 - 00:00

Publisher Correction: Geometric constraints during epithelial jamming

Publisher Correction: Geometric constraints during epithelial jamming, Published online: 19 April 2018; doi:10.1038/s41567-018-0139-3

Publisher Correction: Geometric constraints during epithelial jamming

Attosecond coupled electron and nuclear dynamics in dissociative ionization of H<sub>2</sub>

Δευ, 16/04/2018 - 00:00

Attosecond coupled electron and nuclear dynamics in dissociative ionization of H2

Attosecond coupled electron and nuclear dynamics in dissociative ionization of H<sub>2</sub>, Published online: 16 April 2018; doi:10.1038/s41567-018-0103-2

Attosecond XUV spectroscopy is reported, focussing on non-Born–Oppenheimer dynamics in molecular gases of light elements. It is shown that the phase of the detected photoelectrons carries information from both vibrational and electronic degrees of freedom.

Bose–Einstein condensation in a plasmonic lattice

Δευ, 16/04/2018 - 00:00

Bose–Einstein condensation in a plasmonic lattice

Bose–Einstein condensation in a plasmonic lattice, Published online: 16 April 2018; doi:10.1038/s41567-018-0109-9

Surface plasmon polaritons in an array of metallic nanoparticles evolve quickly into the band minimum by interacting with a molecule bath, forming a Bose–Einstein condensate at room temperature within picoseconds.

Spontaneous shear flow in confined cellular nematics

Δευ, 16/04/2018 - 00:00

Spontaneous shear flow in confined cellular nematics

Spontaneous shear flow in confined cellular nematics, Published online: 16 April 2018; doi:10.1038/s41567-018-0099-7

Antiparallel streams of nematically oriented cells arise in both embryonic development and cancer. In vitro experiments and a hydrodynamic active gel theory suggest that these cells are subject to a transition that is driven by their activity.

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