Category: Quantum

A three-node quantum network in The Netherlands: Future quantum networks will provide the means to develop truly secure communication channels and will have applications in many other quantum-based technologies. Pompili et al. present a three-node remote quantum network based on solid-state spin qubits (nitrogen-vacancy centers in diamond) coupled by photons. The implementation of two quantum…

Rafael Advanced Defense Systems has been investing in quantum technology in the hopes that it will improve existing sensors on the battlefield and could lead to a solution for GPS-denied environments. Rafael Advanced Defense Systems has been investing in quantum technology in the hopes that it will improve existing sensors on the battlefield and could…

The quantum computer Jiuzhang manipulates light via a complex arrangement of optical devices (shown). A second type of quantum device performed a calculation impossible for a traditional computer. A new type of quantum computer has proven that it can reign supreme, too. A photonic quantum computer, which harnesses particles of light, or photons, performed a…

Supraconducting / Iontraps / Annealing AWS hat mit Amazon Braket einen vollständig verwalteten Quantencomputer-Service vorgestellt. Der Dienst soll Forschern bei der Entwicklung von Quantenalgorithmen helfen. Auch Amazons Cloud-Sparte AWS bietet Kundinnen und Kunden jetzt eine Möglichkeit, in der Cloud mit Quantencomputern zu experimentieren. Über den neuen AWS-Dienst Amazon Braket erhalten Forscher die Möglichkeit, Quantenalgorithmen zu…

Researchers have managed to quantum teleport information between two computer chips for the first time Scientists at the University of Bristol and the Technical University of Denmark have achieved quantum teleportation between two computer chips for the first time. The team managed to send information from one chip to another instantly without them being physically…

The UNSW Sydney research team: Professor Andrew Dzurak, Mr Wister Huang, Dr Henry Yang. Credit: UNSW Sydney   13 MAY 2019 For the first time ever, researchers have measured the fidelity—that is, the accuracy—of two-qubit logic operations in silicon, with highly promising results that will enable scaling up to a full-scale quantum processor. The research,…

Scientia Professor Michelle Simmons with a scanning tunnelling microscope. Credit: UNSW   07 Mar 2018 by Deborah Smith The unique Australian approach of creating quantum bits from precisely positioned individual atoms in silicon is reaping major rewards, with two of these atom qubits made to “talk” to each other for the first time. The unique…

Embedding on a special graph of the D-Wave 2000Q by solving a problem like a puzzle in our technique. Credit: Tohoku University Tohoku University researchers have developed an algorithm that enhances the ability of a Canadian-designed quantum computer to more efficiently find the best solution for complicated problems, according to a study published in the…

Scientists have created a Back to the Future device that can predict alternative realities. In the time travel movie, starring Michael J Fox as Marty McFly, the future is shown not to be fixed and unmovable, but a range of possibilities. Only one timeline in which McFly’s parents fall in love allows him to be…

D-Wave, the well-funded quantum computing company, today announced its next-gen quantum computing platform with 5,000 qubits, up from 2,000 in the company’s current system. The new platform will come to market in mid-2020. The company’s new so-called Pegasus topology connects every qubit to 15 other qubits, up from six in its current topology. With this,…

Normal fiber optics can be easily physically tapped and massages can be intercepted. Intruders can bend the cable with a small clamp, then use a specialized piece of hardware to split the beam of light that carries digital ones and zeros through the line. The people communicating have no way of knowing someone is eavesdropping,…

  At CES, IBM today announced its first commercial quantum computer for use outside of the lab. The 20-qubit system combines into a single package the quantum and classical computing parts it takes to use a machine like this for research and business applications. That package, the IBM Q system, is still huge, of course,…

Linear computation: montage of a photo of the chip containing the trapped ions and an image of the ions in a 1D array (Courtesy: Christopher Monroe)   The first commercial quantum computer that uses trapped ions for quantum bits (qubits) has been launched by the US-based start-up IonQ. The device is unlike other commercial systems,…

“Quantum phenomenon has been detected in a large class of superconducting materials, fueling a growing belief among physicists that an unknown organizing principle governs the collective behavior of particles and determines how they spread energy and information. Understanding this organizing principle could be a key into “quantum strangeness at its deepest level”   Experiments suggest…

IBM researcher Jerry Chow in the quantum computing lab at IBM’s T.J. Watson Research Center   by William (“Whurley”) Hurley The word “quantum” gained currency in the late 20th century as a descriptor signifying something so significant it defied the use of common adjectives. For example, a “quantum leap” is a dramatic advancement (also an early 1990’s…