Quantum Computing News

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Light Manipulated on Superconducting Chips to Build Quantum Computers

Physicists at UC Santa Barbara are manipulating light on superconducting chips, and forging new pathways to building the quantum devices of the future –– including super-fast and powerful quantum computers.

5 Mar 2013

Superconducting Quantum-Interference Devices Help Extract Microwave Photons out of Vacuum's Quantum Noise

The researchers conducted a mirror experiment to show that by changing the position of the mirror in a vacuum, virtual particles can be transformed into real photons that can be experimentally observed. In a vacuum, there is energy and noise, the existence of which follows the uncertainty principle in quantum mechanics.

27 Feb 2013

New Way of Emitting Photons Advances Future of Quantum Computing

Researchers have discovered a new way of emitting photons one at a time. They have constructed semiconductor nanowires with "quantum dots" of unprecedented quality - a discovery with implications for the future of quantum computing.

22 Feb 2013

Efficient Triangles Finding Algorithm Holds Potential for Quantum Computing

Two papers about minimising effort took CQT researchers to the prestigious ACM-SIAM SODA conference in New Orleans in January. The CQT computer scientists and their collaborators set bounds on the amount of work that needs to be done to solve two different problems.

21 Feb 2013

Network of Small Quantum Computers Can Implement Quantum Algorithms

A quantum computer doesn't need to be a single large device but could be built from a network of small parts, new research from the University of Bristol has demonstrated. As a result, building such a computer would ...

21 Feb 2013

IQC Quantum Researcher to Participate in AAAS Annual Meeting

Quantum information processing promises not only breakthroughs for computing, communications and cryptography, but it can also help us devise tools for navigating and controlling the nano-scale world. Sensors that operate according to quantum mechanics may achieve sensitivity, selectivity, precision and robustness far beyond their classical counterparts.

18 Feb 2013

Multi-Particle Quantum Walk for Universal Computation

The IQC team of Andrew Childs (Associate Professor of Combinatorics and Optimization), David Gosset (Post-Doctoral Fellow) and Zak Webb (PhD student) have proposed a new universal computational model. This model has the potential to become an architecture for a scalable quantum computer without the need to actively manipulate qubits during the computation. The team’s findings will be published in the February 15, 2013 issue of Science.

16 Feb 2013

Researchers Reverse Quantum Measurement Using Quantum Error Correction Protocol

A team of physicists at the University of Innsbruck, Austria, performed an experiment that seems to contradict the foundations of quantum theory – at first glance. The team led by Rainer Blatt reversed a quantum measurement in a prototype quantum information processor. The experiment is enabled by a technique that has been developed for quantum error correction in a future quantum computer.

16 Feb 2013

First Step Towards Creating Exotic Mechanical Quantum States

This work represents the first step towards creating exotic mechanical quantum states. For example, the transfer makes it possible to create a state in which the resonator simultaneously vibrates and doesn’t vibrate, says Mika Sillanpää, professor at Aalto University, who runs the research group.

15 Feb 2013

Study Demonstrates Existence of Topological Insulators Based on Organic Materials

University of Utah engineers demonstrated it is feasible to build the first organic materials that conduct electricity on their edges, but act as an insulator inside. These materials, called organic topological insulators, could shuttle information at the speed of light in quantum computers and other high-speed electronic devices.

14 Feb 2013