Category: Quantum Physics
Adding up Feynman diagrams to make predictions about real materials
Illustration of a polaron in a crystal: the central bright sphere is the charge carrier, distorting the surrounding lattice. The wavy lines represent high-order Feynman diagrams for the electron–phonon interaction,…
State-dependent values emerge from Dirac equation
Credit: California Institute of Technology Quantum mechanics has a reputation that precedes it. Virtually everyone who has bumped up against the quantum realm, whether in a physics class, in the…
Quantum battery device lasts much longer than previous demonstrations
Daniel Tibben holding device. Credit: RMIT. Researchers from RMIT University and CSIRO, Australia’s national science agency, have unveiled a method to significantly extend the lifetime of quantum batteries—1,000 times longer…
Light and glass are set to transform computing
Credit: Unsplash/CC0 Public Domain European researchers are developing quantum computers using light and glass, in a collaboration that promises breakthroughs in computing power, battery technology and scientific discovery. Giulia Acconcia…
Improving randomness may be the key to more powerful quantum computers
The circuit construction used to prove the paper’s main result. Each block represents a quantum circuit acting on a small patch of the entire system. Credit: Thomas Schuster, Jonas Haferkamp,…
Physicists create tunable system for enhanced quantum sensing
A table top experiment typical of the setup. The size is more or less equal to the size of an ordinary dining table. Credit: Ola Jakup Joensen Researchers at the…
Quantum equivalent of thermodynamics’ second law discovered for entanglement manipulation
Illustration of an entanglement battery. The battery allows reversible interconversion between any two entangled states. Credit: American Physical Society Just over 200 years after French engineer and physicist Sadi Carnot…
