Breakthrough in Quantum Entanglement
Physicists in Japan have achieved the first entangled measurement of W states, a phenomenon that could pave the way for robust quantum communication and scalable networks.
Quantum entanglement is the foundation of various technologies, including quantum cryptography and quantum computing, where two particles are interconnected, allowing the measurement of one to reveal information about the other, even at vast distances.
Imagine two particles so interconnected that measuring one immediately reveals information about the other, even if the particles are light–years apart.
A team of physicists has performed a collective quantum measurement on a W state comprising three entangled photons, allowing them to analyze the photons at once, rather than one at a time.
- This achievement marks a significant step towards the practical development of quantum technologies.
- Physicists usually measure entangled particles using a technique known as quantum tomography.
Author's summary: Japanese physicists achieve entangled measurement of W states.