Read article: When few become many: forming a Fermi sea Ultracold matter Research update When few become many: forming a Fermi sea Four fermions suffice in 1D ultracold systems
Read article: Ultracold atoms set the stage for Hofstadter’s butterfly Ultracold matter Research update Ultracold atoms set the stage for Hofstadter’s butterfly Quantum simulation could shed light on real materials
Read article: Molecules line up in laser grid Ultracold matter Research update Molecules line up in laser grid Long-range interactions between cold molecules could allow studies of quantum magnetism
Read article: New atomic clock sets the record for stability Ultrafast science Research update New atomic clock sets the record for stability Researchers aim to modify device for use outside the laboratory
Read article: Unexpected interactions between solitons detected Ultracold matter Research update Unexpected interactions between solitons detected Long-range interactions observed over astronomical distances
Read article: Atomic Van der Waals force measured for the first time Ultracold matter Research update Atomic Van der Waals force measured for the first time Interaction could find use in quantum logic gates
Read article: Physicists design acoustically invisible walls Ultracold matter Research update Physicists design acoustically invisible walls Method can be used over a range of frequencies
Read article: Bose–Einstein condensate is in the can Ultracold matter Research update Bose–Einstein condensate is in the can Optical trap could lead to new quantum simulations
Read article: Interfering atoms could help detect gravitational waves Ultracold matter Research update Interfering atoms could help detect gravitational waves New scheme could be cheaper than laser-interferometer designs
Read article: Atomic magnetometer is most sensitive yet Ultrafast science Research update Atomic magnetometer is most sensitive yet Device does not require shielding from external fields
Optics & Photonics Briefing This issue explores lasers and detectors, solar power, medical imaging and high-resolution displays