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In their proof-of-concept device, consisting of an array of 20 tunable microresonators, the team demonstrated that each multiplexed microresonator produced high-quality entangled photon pairs as compared to the best resonators they produced in previous work — design elements of the components in that paper have found their way into Cisco Systems’ newly unveiled quantum entanglement chip.

MIT physicists have captured the first images of individual atoms freely interacting in space. The pictures reveal correlations among the “free-range” particles that until now were predicted but never directly observed. Their findings, appearing in the journal Physical Review Letters, will help scientists visualize never-before-seen quantum phenomena in real space.

An exact expression for a key process needed in many quantum technologies has been derived by a RIKEN mathematical physicist and a collaborator. This could help to guide advances in quantum technologies.

By bridging the gap between traditional magnetic insulators and more complex electronic systems, the study opens new avenues for advancements in spintronics and quantum computing.

Diamonds with certain optically active defects can be used as highly sensitive sensors or qubits for quantum computers, where the quantum information is stored in the electron spin state of these colour centres. However, the spin states have to be read out optically, which is often experimentally complex. Now, a team at HZB has developed an elegant method using a photo voltage to detect the individual and local spin states of these defects. This could lead to a much more comp

Researchers have caused a material’s superconductivity to permeate into a nearby normal metal via a single molecule. They showed that this effect could be controlled and say that this control could allow the creation of so-called Majorana quasiparticles, which many research teams are exploring as future quantum bits (qubits) for quantum computers.