Quantum Computing News

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Researchers Use Sound to Coherently Control Quantum State of Spin

The ability to control the intrinsic angular momentum of individual electrons – their “spins” – could lead to a world of new technologies that involve storing and processing information.

9 Mar 2015

Quantum Device That Corrects its Own Errors, Holds Promise for Quantum Computing

When scientists develop a full quantum computer, the world of computing will undergo a revolution of sophistication, speed and energy efficiency that will make even our beefiest conventional machines seem like Stone Age clunkers by comparison.

6 Mar 2015

New High-Resolution Spectroscopy Holds Promise for Quantum Computing

A new twist on an old tool lets scientists use light to study and control matter with 1,000 times better resolution and precision than previously possible.

3 Mar 2015

Scientists Observe Current Flow Along Nanochannels at Crystal Surfaces of Topological Insulators

In the latest issue of the journal Nature Physics, German Scientists report that they could observe experimentally the current flow along channels at the crystal surfaces of topological insulators.

3 Mar 2015

Multiprover Interactive Proof System Gains Power by Exploiting Quantum Entanglement

A big question for researchers in quantum computing is, where does quantum physics give us an advantage? CQT researcher Joe Fitzsimons and his collaborator Thomas Vidick from Caltech have added to the list. Specifically, they give an example of a “multiprover interactive proof system" that gains power by exploiting quantum entanglement.

27 Feb 2015

JQI Researchers Demonstrate Modular Entanglement Between Two Atomic Systems

JQI researchers, under the direction of Christopher Monroe have demonstrated modular entanglement between two atomic systems, separated by one meter. Here, photons are the long distance information carriers entangling multiple qubit modules. Inside of a single module, quantized collective vibrations called phonons connect individual qubits.

26 Feb 2015

New Way to Control Individual Vortices to Improve Performance of Superconducting Wires

Superconductor materials are prized for their ability to carry an electric current without resistance, but this valuable trait can be crippled or lost when electrons swirl into tiny tornado-like formations called vortices. These disruptive mini-twisters often form in the presence of magnetic fields, such as those produced by electric motors.

25 Feb 2015

Quantum Steering Functions as an Essential Resource in Specific Information-Theoretic Tasks

Communication security and metrology could be enhanced through a study of the role of quantum correlations in the distinguishability of physical processes, by researchers at the Universities of Strathclyde and Waterloo.

16 Feb 2015

Many Challenges Persist Before Quantum Annealing Helps Solve Complex Optimisation Problems

Many challenges lie ahead before quantum annealing, the analogue version of quantum computation, contributes to solve combinatorial optimisation problems

From Springer - Science and Technology Publishers 12 Feb 2015

New Design Extends Superposition Time of Qubit a Hundredfold

Quantum computers are experimental devices that promise exponential speedups on some computational problems. Where a bit in a classical computer can represent either a 0 or a 1, a quantum bit, or qubit, can represent 0 and 1 simultaneously, letting quantum computers explore multiple problem solutions in parallel. But such “superpositions” of quantum states are, in practice, difficult to maintain.

31 Jan 2015

Quantum Computing News

Researchers Use Sound to Coherently Control Quantum State of Spin

Quantum Device That Corrects its Own Errors, Holds Promise for Quantum Computing

New High-Resolution Spectroscopy Holds Promise for Quantum Computing

Scientists Observe Current Flow Along Nanochannels at Crystal Surfaces of Topological Insulators

Multiprover Interactive Proof System Gains Power by Exploiting Quantum Entanglement

JQI Researchers Demonstrate Modular Entanglement Between Two Atomic Systems

New Way to Control Individual Vortices to Improve Performance of Superconducting Wires

Quantum Steering Functions as an Essential Resource in Specific Information-Theoretic Tasks

Many Challenges Persist Before Quantum Annealing Helps Solve Complex Optimisation Problems

New Design Extends Superposition Time of Qubit a Hundredfold

Quantum Development in Ireland: A Conversation with John Durcan, Chief Technologist, IDA Ireland

Advancing Quantum Scalability with New Qubit Method

Modified Newtonian Dynamics and the Search for a Ninth Planet

LabOne Q: An Intuitive Software Framework for Scalable Quantum Computing

ORCA-Quest qCMOS Camera by Hamamatsu

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Repeat-Until-Success Algorithm for Quantum Gate Decomposition

Researchers Exploit the Color Centers in Diamond to Enhance Dynamic Nuclear Polarization Processes for NMR Applications

Application of Electro-Optic Phase Modulator in Pound-Drever Hall Technique for Laser Frequency Stabilization

Quantum Computing News

Quantum Development in Ireland: A Conversation with John Durcan, Chief Technologist, IDA Ireland

Advancing Quantum Scalability with New Qubit Method

Modified Newtonian Dynamics and the Search for a Ninth Planet

1First High-Res Map of Massive Explosion in NGC 4383

2Quantum Observer Paradox: Extending Measurement Disturbance

3Breakthrough for Next-Generation Quantum Computing

4Quantum Linear Solvers for Redundant Baseline Calibration

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