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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 1 ώρα 35 λεπτά

Topological transition in stratified fluids

Δευ, 24/06/2019 - 00:00

Nature Physics, Published online: 24 June 2019; doi:10.1038/s41567-019-0561-1

A prediction of the existence of trapped acoustic-gravity waves in stratified fluids provides a platform for probing topological phenomena in the lab—with possible implications for astrophysical and geophysical flows.

Pairing states of composite fermions in double-layer graphene

Δευ, 24/06/2019 - 00:00

Nature Physics, Published online: 24 June 2019; doi:10.1038/s41567-019-0547-z

It is shown that composite fermions in the fractional quantum Hall regime form paired states in double-layer graphene. Pairing between layers gives a phase similar to an exciton condensate and pairing within a layer may lead to non-abelian states.

Restricted Boltzmann machines in quantum physics

Δευ, 24/06/2019 - 00:00

Nature Physics, Published online: 24 June 2019; doi:10.1038/s41567-019-0545-1

A type of stochastic neural network called a restricted Boltzmann machine has been widely used in artificial intelligence applications for decades. They are now finding new life in the simulation of complex wavefunctions in quantum many-body physics.

Superconductivity in an insulator

Δευ, 24/06/2019 - 00:00

Nature Physics, Published online: 24 June 2019; doi:10.1038/s41567-019-0580-y

The superconductor–insulator phase transition is a quantum phenomenon that reveals a competition between the superconducting phase order and charge localization. Now, microwave spectroscopy is shown to be a promising approach to investigate this effect in controllable one-dimensional Josephson arrays.

Experimental few-copy multipartite entanglement detection

Δευ, 24/06/2019 - 00:00

Nature Physics, Published online: 24 June 2019; doi:10.1038/s41567-019-0550-4

A general scheme for a resource-efficient probabilistic detection of multipartite entanglement is demonstrated on six-partite cluster states.

Berry’s lesson for Lamb

Δευ, 24/06/2019 - 00:00

Nature Physics, Published online: 24 June 2019; doi:10.1038/s41567-019-0575-8

A demonstration that Michael Berry’s legacy can inform our understanding of Lamb waves in stratified fluids serves as a reminder of the reach of topological thinking — as well as its potential utility.

Interlayer fractional quantum Hall effect in a coupled graphene double layer

Δευ, 24/06/2019 - 00:00

Nature Physics, Published online: 24 June 2019; doi:10.1038/s41567-019-0546-0

Transport data reveal interlayer composite fermion fractional quantum Hall states in double-layer graphene. The authors also show that these can pair up to form an interlayer composite fermion exciton condensate.

Quantum electrodynamics of a superconductor–insulator phase transition

Δευ, 24/06/2019 - 00:00

Nature Physics, Published online: 24 June 2019; doi:10.1038/s41567-019-0553-1

A Josephson junction array is used to show the phase mode associated with superconductivity surviving deep in the insulating regime at high frequency. This generates a device with an effective fine structure constant larger than unity.

Publisher Correction: A primary radiation standard based on quantum nonlinear optics

Πέμ, 13/06/2019 - 00:00

Nature Physics, Published online: 13 June 2019; doi:10.1038/s41567-019-0582-9

Publisher Correction: A primary radiation standard based on quantum nonlinear optics

Energy costs

Δευ, 03/06/2019 - 00:00

Nature Physics, Published online: 03 June 2019; doi:10.1038/s41567-019-0549-x

Energy costs

Far from perfect

Δευ, 03/06/2019 - 00:00

Nature Physics, Published online: 03 June 2019; doi:10.1038/s41567-019-0556-y

Far from perfect

Brexit blues

Δευ, 03/06/2019 - 00:00

Nature Physics, Published online: 03 June 2019; doi:10.1038/s41567-019-0563-z

Three years have passed since the United Kingdom voted to leave the European Union, yet the country struggles to agree on a way forward. The uncertainty this creates is being felt across its research community.

Lattice defects induce microtubule self-renewal

Δευ, 03/06/2019 - 00:00

Nature Physics, Published online: 03 June 2019; doi:10.1038/s41567-019-0542-4

Microtubules vary their length by gaining and shedding tubulin dimers dynamically at both ends. But evidence now suggests that dimers may also be incorporated into the middle of the shaft—calling into question existing models of growth dynamics.

A unit for nothing

Δευ, 03/06/2019 - 00:00

Nature Physics, Published online: 03 June 2019; doi:10.1038/s41567-019-0530-8

The way that we understand free space has varied wildly since our first conception of the vacuum. And how we measure the void has proven just as changeable, as Karl Jousten explains.

Polaron spin dynamics in high-mobility polymeric semiconductors

Δευ, 03/06/2019 - 00:00

Nature Physics, Published online: 03 June 2019; doi:10.1038/s41567-019-0538-0

The long spin lifetimes observed in polymeric semiconductors hold promise for potential applications. A careful study untangles the main mechanism behind them.

It’s magic

Δευ, 03/06/2019 - 00:00

Nature Physics, Published online: 03 June 2019; doi:10.1038/s41567-019-0558-9

It’s magic

Stay in shape

Δευ, 03/06/2019 - 00:00

Nature Physics, Published online: 03 June 2019; doi:10.1038/s41567-019-0557-x

Stay in shape

Author Correction: Evolution of charge order topology across a magnetic phase transition in cuprate superconductors

Τρί, 28/05/2019 - 00:00

Nature Physics, Published online: 28 May 2019; doi:10.1038/s41567-019-0569-6

Author Correction: Evolution of charge order topology across a magnetic phase transition in cuprate superconductors

Universal optical control of chiral superconductors and Majorana modes

Δευ, 27/05/2019 - 00:00

Nature Physics, Published online: 27 May 2019; doi:10.1038/s41567-019-0532-6

This study presents a proposal for an all-optical method for manipulating chiral superconductors. Light pulses can switch the handedness of the chirality, potentially enabling controlled local writing of domain walls and associated Majorana modes.

Avoided quasiparticle decay from strong quantum interactions

Δευ, 27/05/2019 - 00:00

Nature Physics, Published online: 27 May 2019; doi:10.1038/s41567-019-0535-3

A collective excitation behaving as a single emergent entity, known as a quasiparticle, often becomes unstable when encountering a continuum of many-body excited states. However, under certain conditions, the result can be totally different.

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