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Quantum Physics Jul 3, 2017

Record-breaking 45-qubit quantum computing simulation run at NERSC

When two researchers from the Swiss Federal Institute of Technology (ETH Zurich) announced in April that they had successfully simulated a 45-qubit quantum circuit, the science community took notice: it was the largest ever ...

Quantum Physics Dec 8, 2016

Researchers improve qubit lifetime for quantum computers

An international team of scientists has succeeded in making further improvements to the lifetime of superconducting quantum circuits. An important prerequisite for the realization of high-performance quantum computers is ...

Quantum Physics Apr 27, 2016

Researchers create a first frequency comb of time-bin entangled qubits

Quantum mechanics, with its counter-intuitive rules for describing the behavior of tiny particles like photons and atoms, holds great promise for profound advances in the security and speed of how we communicate and compute.

Quantum Physics Apr 6, 2016

Feedback technique used on diamond 'qubits' could make quantum computing more practical

Quantum computers are largely hypothetical devices that could perform some calculations much more rapidly than conventional computers can. They exploit a property called superposition, which describes a quantum particle's ...

Quantum Physics Mar 11, 2016

Team takes giant step forward in generating optical qubits

An optical chip developed at INRS by Prof. Roberto Morandotti's team overcomes a number of obstacles in the development of quantum computers, which are expected to revolutionize information processing. An international research ...

Quantum Physics Feb 25, 2016

Quantum physicist tame a so-called 'dark state' created in a superconducting qubit

A team of quantum physicists at Aalto University led by Dr. Sorin Paraoanu managed to tame a so-called "dark state" created in a superconducting qubit. A superconducting qubit is an artificial atom fabricated on a silicon ...

Quantum Physics Jan 7, 2016

Isolating and controlling qubits for quantum information processing

Harnessing quantum systems for information processing will require controlling large numbers of basic building blocks called qubits. The qubits must be isolated, and in most cases cooled such that, among other things, errors ...

Quantum Physics Aug 27, 2015

Neural qubits: Quantum cognition based on synaptic nuclear spins

(Phys.org)—The pursuit of an understanding of the base machinery of the mind led early researchers to anatomical exhaustion. With neuroscience now in the throes of molecular mayhem and a waning biochemical bliss, physics ...

Quantum Physics Dec 29, 2014

A qubit candidate shines brighter

In the race to design the world's first universal quantum computer, a special kind of diamond defect called a nitrogen vacancy (NV) center is playing a big role. NV centers consist of a nitrogen atom and a vacant site that ...

Other Jul 21, 2014

Best of Last Week – New type of qubit created, Hubble sees a glowing galaxy and extreme agreeing may solve disagreements

(Phys.org) —Summer may be on us (at least in the northern hemisphere) but scientists are still busy conducting research, particularly at the Large Hadron Collider as physicists detect process even rarer than the long-sought ...

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