Read article: Proton radius mystery deepens as deuterium measurement comes up short Particles and interactions Research update Proton radius mystery deepens as deuterium measurement comes up short Smaller than expected radius of nucleus puzzles physicists
Read article: Entangled Hawking radiation spotted in analogue black hole Ultracold matter Research update Entangled Hawking radiation spotted in analogue black hole Quantized sound emerges from Bose–Einstein condensate
Read article: Brittle quasicrystals become ductile at the nanoscale Nanomaterials Research update Brittle quasicrystals become ductile at the nanoscale Experiments show that "dislocation glide" dominates quasicrystal deformation
Read article: X-ray pulsars plot the way for deep-space GPS Telescopes and space missions Research update X-ray pulsars plot the way for deep-space GPS New method could be autonomous, increasing the capabilities of future interstellar missions
Read article: Construction starts on huge Chinese cosmic-ray observatory Astroparticle physics Research update Construction starts on huge Chinese cosmic-ray observatory Large High Altitude Air Shower Observatory will attempt to understand the origin of cosmic rays
Read article: Lasers reconfigure the properties of novel metasurface Structure and dynamics Research update Lasers reconfigure the properties of novel metasurface Switchable material can block or transmit particular wavelengths of light
Read article: Ion-trap quantum computer is programmable and reconfigurable Ultracold matter Research update Ion-trap quantum computer is programmable and reconfigurable Five ions used to run a variety of algorithms including a quantum Fourier transform
Read article: First ever supercurrent observed at room temperature Transport properties Research update First ever supercurrent observed at room temperature Certain peers are sceptical of the results and say the claims are premature
Read article: Single photon simultaneously excites two atoms Optical physics Research update Single photon simultaneously excites two atoms Process could be used as a qubit in future quantum-information processes
Read article: Tiny laser makes ‘twisted light’ Lasers Research update Tiny laser makes ‘twisted light’ New device could allow orbital angular momentum to be used in telecommunication devices
Optics & Photonics Briefing This issue explores lasers and detectors, solar power, medical imaging and high-resolution displays