New blueprint for more stable quantum computers

Manuel Grimm is a theoretical physicist at the Paul Scherrer Institute and works on the foundations for building future quantum computers. Credit: Paul Scherrer Institute/Markus Fischer Researchers at the Paul Scherrer Institute (PSI) have put forward a detailed plan of how faster and better defined quantum bits—qubits—can be created. The central elements are magnetic atoms […]

Rethinking spin chemistry from a quantum perspective

A quantum circuit that enables for the maximum probability of P(0) in the measurement of the parameter J. Credit: K. Sugisaki, K. Sato and T. Takui Researchers at Osaka City University use quantum superposition states and Bayesian inference to create a quantum algorithm, easily executable on quantum computers, that accurately and directly calculates energy differences […]

Physicists propose a new theory to explain one dimensional quantum liquids formation

One dimensional quantum lattice liquids. Credit: I. Morera et al. Phys. Rev. Lett Liquids are ubiquitous in Nature: from the water that we consume daily to superfluid helium which is a quantum liquid appearing at temperatures as low as only a few degrees above the absolute zero. A common feature of these vastly different liquids […]

New state of matter in one-dimensional quantum gas — ScienceDaily

As the story goes, the Greek mathematician and tinkerer Archimedes came across an invention while traveling through ancient Egypt that would later bear his name. It was a machine consisting of a screw housed inside a hollow tube that trapped and drew water upon rotation. Now, researchers led by Stanford University physicist Benjamin Lev have […]

Drones could help create a quantum internet

illustration of drones above a city

The quantum internet may be coming to you via drone. Scientists have now used drones to transmit particles of light, or photons, that share the quantum linkage called entanglement. The photons were sent to two locations a kilometer apart, researchers from Nanjing University in China report in a study to appear in Physical Review Letters. […]

Pivotal discovery in quantum and classical information processing

Tuned photon-magnon interactions. The team’s device is in the center. Arrow indicates direction of spin excitation for magnons. The purplish shroud represents reflectance measurements. The separated darker lines on each side that intersect at the top indicate tunable strong photon-magnon coupling. Credit: Argonne National Laboratory Working with theorists in the University of Chicago’s Pritzker School […]

Researchers realize efficient generation of high-dimensional quantum teleportation

Credit: CC0 Public Domain In a study published in Physical Review Letters, a team led by academician Guo Guangcan from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) has made progress in high dimensional quantum teleportation. The researchers demonstrated the teleportation of high-dimensional states in a three-dimensional […]

Industry collaboration leads to important milestone in the creation of a quantum computer

IMAGE: (a) Scanning electron image of one of the Foundry-fabricated quantum dot devices. Four quantum dots can be formed in the silicon (dark grey), using four independent control wires (light grey)…. view more  Credit: Fabio Ansaloni Quantum computer: One of the obstacles for progress in the quest for a working quantum computer has been that the […]

Important milestone in the creation of a quantum computer — ScienceDaily

Quantum computer: One of the obstacles for progress in the quest for a working quantum computer has been that the working devices that go into a quantum computer and perform the actual calculations, the qubits, have hitherto been made by universities and in small numbers. But in recent years, a pan-European collaboration, in partnership with […]

Quantum wave in helium dimer filmed for the first time

Anyone entering the world of quantum physics must prepare themself for quite a few things unknown in the everyday world: Noble gases form compounds, atoms behave like particles and waves at the same time and events that in the macroscopic world exclude each other occur simultaneously. In the world of quantum physics, Reinhard Dörner and […]