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Volume 15 Issue 11, November 2019

Odd viscosity

A chiral fluid comprising spinning colloidal magnets exhibits macroscopic dynamics reminiscent of the free surface flows of Newtonian fluids, together with unique features suggestive of Hall—or odd—viscosity.

See Irvine et al.

Image: Vishal Soni, Ephraim Bililign, Sofia Magkiriadou, University of Chicago. Cover Design: David Shand

Volume 15 Issue 11

Editorial

  • Half of the 2019 Nobel Prize in Physics was awarded to James Peebles “for theoretical discoveries in physical cosmology” and the other half is shared by Michel Mayor and Didier Queloz “for the discovery of an exoplanet orbiting a solar-type star”.

    Editorial

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  • The demonstration of a quantum computational advantage is a milestone worth celebrating.

    Editorial
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Thesis

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Research Highlights

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News & Views

  • Two independent cold-atom experiments have demonstrated the building blocks for the quantum simulation of dynamical gauge fields — an advance that holds promise for our understanding of computationally intractable problems in high-energy physics.

    • Cheng Chin
    News & Views
  • Spatially resolved measurements of twisted bilayer graphene reveal more details of the strongly correlated electrons.

    • Adina Luican-Mayer
    News & Views
  • The demonstration of high-resolution spectroscopy of Sr2 molecules trapped in an optical lattice at the ‘magic’ wavelength opens the way to precision control of molecular excitations.

    • Nicola Poli
    News & Views
  • A model fluid comprising rotating magnetic particles behaves according to the equations of hydrodynamics, but for a few key differences due to broken mirror symmetry. The resulting active chiral fluid is characterized by parity-odd Hall viscosity.

    • Alexander Abanov
    News & Views
  • A statistical analysis of data from ultra-relativistic heavy-ion collisions has uncovered the specific viscosities of the quark–gluon plasma — suggesting that the hottest matter in the current Universe behaves like a near-perfect fluid.

    • Kari J. Eskola
    News & Views
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Letters

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Articles

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Amendments & Corrections

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Measure for Measure

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