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quantum;entangled state measurment;quantum entanglement

Viewpoint: Directly Measuring an Entangled State[Oct 12, 2019]

GUO Guangcan's team from University of Science and Technology of China of the Chinese Academy of Sciences overcame the difficulties with weak values by switching to modular values, which also involve pre- and postselection of quantum states but are based on strong rather than weak measurements.

laser;perovskite quantum dots;photoelectric device

Scientists Realize High-performance Laser from Perovskite Quantum Dots[Oct 11, 2019]

Recently, a research team in State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, in cooperation with Chongqing University, has made a new progress in enhancing the lasing performance of quantum dots nanolasers.

mass loss rate;energy-limited equation;planet

Researchers Modify Energy-limited Equation to Estimate Exoplanetary Mass Loss Rates[Oct 11, 2019]

The mass loss rate of planetary atmosphere is an important physical quantity to characterize the atmospheric escape. The researchers from Yunnan Observatories recently published their new finding about the exoplanets' mass loss rates and the modified energy-limited equation in The Astrophysical Journal.

semiconductor;nanolaser;rubidium;microsphere

Scientists Get Single-mode Nanolaser from Another All-inorganic Perovskite Material[Oct 11, 2019]

Recently, a collaboration researcher team from Shanghai Institute of Optics and Fine Mechanics of the Chinese Academy of Sciences (CAS), Shanghai Institute of Technical Physics of CAS and Nanjing Xiaozhuang University, realized a high quality single-mode laser in another all-inorganic perovskite RbPbBr3 microsphere.

laser crystal;property;storage;yellow laser

New Laser Crystal Shows Good Property of Energy Storage for Yellow Laser[Oct 11, 2019]

Leading to the yellow region visible lasers, the continuous development of laser medicine, biomedical instruments and telecommunication have drawn much attention in past few years. Regrettably, there is still a blank region in this band for laser diode (LD), which puts forward requirements for the emission of yellow light laser by rare earth ion doped lasers.

axion particle;solid-state crystal;Weyl-type electrons;Weyl fermions;quantum particle

Axion Particle Spotted in Solid-state Crystal[Oct 11, 2019]

Scientists at the Max Planck Institute for Chemical Physics of Solids in Dresden, Princeton University, the University of Illinois at Urbana-Champaign,and the University of the Chinese Academy of Sciences have spotted a famously elusive particle: The axion -- first predicted 42 years ago as an elementary particle in extensions of the standard model of particle physics.

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