Once upon a time there were modes and states in quantum optics

Once upon a time there were modes and states in quantum optics

Once upon a time there were modes and states in quantum optics Quantum Optics, as the child of Optics and Quantum Mechanics, has inherited a double linearity: that of Maxwell’s equations, which use optical modes as a basis of solutions, and that of the...
Enigmatic black holes revealed by gravitational waves

Enigmatic black holes revealed by gravitational waves

Enigmatic black holes revealed by gravitational waves  This is the biggest catch to date for the LIGO and Virgo gravitational wave detectors: a black hole with the mass of 142 suns, resulting from the fusion of two black holes of 85 and 65 times the mass of Sun. The...
Fundamental constants: the molecular hydrogen ion joins the play

Fundamental constants: the molecular hydrogen ion joins the play

Fundamental constants: the molecular hydrogen ion joins the play The HD+ molecule, composed of a proton, a deuteron and an electron, is along with its isotopes such as H2+ or D2+, the simplest molecule. As such, it is a valuable tool to test our understanding of...
Squeezing multimode quantum states to enhance sensor networks

Squeezing multimode quantum states to enhance sensor networks

Squeezing multimode quantum states to enhance sensor networks The probabilistic nature of quantum mechanics usually prevents us from predicting with certainty the result of a single measurement. These so-called quantum fluctuations lead to measurement noise that...
Connecting the quantum internet

Connecting the quantum internet

Connecting the quantum internet Researchers at the Kastler Brossel Laboratory in Paris have succeeded in implementing a novel “hybrid” entanglement swapping protocol, bringing within reach the connection of disparate platforms in a future, heterogeneously-structured,...