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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 45 λεπτά 17 δευτερόλεπτα

Macroscopic patterns of interacting contagions are indistinguishable from social reinforcement

Δευ, 24/02/2020 - 00:00

Nature Physics, Published online: 24 February 2020; doi:10.1038/s41567-020-0791-2

Knowledge of the spreading mechanisms of contagions is important for understanding a range of epidemiological and social problems. A study now shows that so-called simple and complex contagions cannot be told apart if there is more than one simple contagion traversing the population at the same time.

Interacting contagions

Δευ, 24/02/2020 - 00:00

Nature Physics, Published online: 24 February 2020; doi:10.1038/s41567-020-0817-9

Complex contagions — for example when ideas spread across a network — are thought to be different from the simple contagions observed for infections. Simple contagions are now shown to exhibit a key macroscopic characteristic of complex behaviour when they interact.

Author Correction: Chip-to-chip quantum teleportation and multi-photon entanglement in silicon

Δευ, 24/02/2020 - 00:00

Nature Physics, Published online: 24 February 2020; doi:10.1038/s41567-020-0840-x

Author Correction: Chip-to-chip quantum teleportation and multi-photon entanglement in silicon

Publisher Correction: Universal gap scaling in percolation

Δευ, 24/02/2020 - 00:00

Nature Physics, Published online: 24 February 2020; doi:10.1038/s41567-020-0837-5

Publisher Correction: Universal gap scaling in percolation

Symmetry-breaking-induced plasmonic exceptional points and nanoscale sensing

Δευ, 17/02/2020 - 00:00

Nature Physics, Published online: 17 February 2020; doi:10.1038/s41567-020-0796-x

The hybridized modes of an asymmetric plasmonic dimer show avoided crossing of both the real and imaginary parts. This can lead to plasmonic exceptional points, which are used for biosensing with very high sensitivity.

Gapless ground state in the archetypal quantum kagome antiferromagnet ZnCu<sub>3</sub>(OH)<sub>6</sub>Cl<sub>2</sub>

Δευ, 17/02/2020 - 00:00

Nature Physics, Published online: 17 February 2020; doi:10.1038/s41567-020-0792-1

Herbertsmithite is an experimental realization of the so-called quantum kagome antiferromagnet, a system that is predicted to host a spin liquid state down to zero temperature. Detailed NMR measurements now confirm that this is the case, and that its ground state is indeed gapless.

Mechanisms of spatiotemporal mode-locking

Δευ, 10/02/2020 - 00:00

Nature Physics, Published online: 10 February 2020; doi:10.1038/s41567-020-0784-1

Mode-locking of lasers can be understood as self-organization, and the three-dimensional case of spatiotemporal mode-locking can described using attractor dissection theory, which helps develop an intuition for this complex case.

Mode-locking dissected

Δευ, 10/02/2020 - 00:00

Nature Physics, Published online: 10 February 2020; doi:10.1038/s41567-020-0811-2

Despite the wide use of mode-locked lasers, no general theory for mode-locking exists. An attractor dissection approach provides some intuitive understanding of the complex dynamics in one type of mode-locking.

Classical discrete time crystals

Δευ, 10/02/2020 - 00:00

Nature Physics, Published online: 10 February 2020; doi:10.1038/s41567-019-0782-3

The phenomenon of many-body localization gives rise to entirely new phases of quantum matter when it is driven away from equilibrium. A numerical study now shows that one of these phases—the discrete time crystal—can also occur in a classical spin chain.

Strong optical coupling through superfluid Brillouin lasing

Δευ, 10/02/2020 - 00:00

Nature Physics, Published online: 10 February 2020; doi:10.1038/s41567-020-0785-0

Light-induced deformations in a film of superfluid helium covering an optical microresonator can greatly enhance Brillouin interactions, enabling strong coupling between counter-propagating modes as well as Brillouin lasing.

Universal gap scaling in percolation

Δευ, 10/02/2020 - 00:00

Nature Physics, Published online: 10 February 2020; doi:10.1038/s41567-019-0783-2

Percolation transitions underpin a generic class of phenomena associated with the degree of connectedness in networks. A detailed numerical study now uncovers a universal scaling in the size of the largest cluster identified in such percolation models.

Plenty of pitches

Πέμ, 06/02/2020 - 00:00

Nature Physics, Published online: 06 February 2020; doi:10.1038/s41567-019-0707-1

The note A tuned to 440 Hz only became the norm for musical performance in 1939 after decades of international and interdisciplinary disputes. Fanny Gribenski retraces this rocky path.

Majorana transparency

Πέμ, 06/02/2020 - 00:00

Nature Physics, Published online: 06 February 2020; doi:10.1038/s41567-020-0801-4

Majorana transparency

The certainty of uncertainty

Πέμ, 06/02/2020 - 00:00

Nature Physics, Published online: 06 February 2020; doi:10.1038/s41567-020-0786-z

The certainty of uncertainty

An isomeric isotope

Πέμ, 06/02/2020 - 00:00

Nature Physics, Published online: 06 February 2020; doi:10.1038/s41567-020-0804-1

An isomeric isotope

Concentrated cities

Πέμ, 06/02/2020 - 00:00

Nature Physics, Published online: 06 February 2020; doi:10.1038/s41567-020-0802-3

Concentrated cities

Lindblad’s tenfold way

Πέμ, 06/02/2020 - 00:00

Nature Physics, Published online: 06 February 2020; doi:10.1038/s41567-020-0805-0

Lindblad’s tenfold way

Trustworthy data underpin reproducible research

Πέμ, 06/02/2020 - 00:00

Nature Physics, Published online: 06 February 2020; doi:10.1038/s41567-019-0780-5

Lack of reproducibility is not necessarily bad news; it may herald new discoveries and signal scientific progress.

Step into the blue

Πέμ, 06/02/2020 - 00:00

Nature Physics, Published online: 06 February 2020; doi:10.1038/s41567-020-0803-2

Step into the blue

Author Correction: Variational quantum unsampling on a quantum photonic processor

Τρί, 04/02/2020 - 00:00

Nature Physics, Published online: 04 February 2020; doi:10.1038/s41567-020-0818-8

Author Correction: Variational quantum unsampling on a quantum photonic processor

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