Search results for qubits

Quantum Physics Mar 1, 2018

New speed record for trapped-ion 'building blocks' of quantum computers

Researchers at Oxford University have set a new speed record for the 'logic gates' that form the building blocks of quantum computing - a technology that could transform the way we process information.

Quantum Physics Mar 21, 2016

Two defining features of quantum mechanics never appear together

(Phys.org)—Two of the most important ideas that distinguish the quantum world from the classical one are nonlocality and contextuality. Previously, physicists have theoretically shown that both of these phenomena cannot ...

Quantum Physics Dec 2, 2015

Quantum computer made of standard semiconductor materials

Physicists at the Technical University of Munich, the Los Alamos National Laboratory and Stanford University (USA) have tracked down semiconductor nanostructure mechanisms that can result in the loss of stored information ...

Quantum Physics Oct 10, 2013

Researchers devise a means to observe single quantum trajectory of superconducting quantum bit

(Phys.org) —A team of physicists at the University of California has devised a means for allowing the observation of the quantum trajectory of a superconducting quantum bit. In their paper published in the journal Nature, ...

Optics & Photonics May 1, 2023

Differing device personalities come together for future quantum computing networks

We're building the tools to trap ions and watch them glow (or not). The art-deco-esque device shown above is a combined trap for ions (charged atoms) and detector for individual photons (particles of light). When you hold ...

Optics & Photonics Feb 7, 2023

How to reverse unknown quantum processes

In the world around us, processes appear to follow a certain time-direction: Dandelions eventually turn into blowballs. However, the quantum realm does not play by the same rules. Physicists from the University of Vienna ...

Quantum Physics Feb 2, 2023

Researchers entangle ions across a 230-meter quantum network

Trapped ions have previously only been entangled in one and the same laboratory. Now, teams led by Tracy Northup and Ben Lanyon from the University of Innsbruck have entangled two ions over a distance of 230 meters.

Quantum Physics Nov 30, 2022

New quantum computing feat is a modern twist on a 150-year-old thought experiment

A team of quantum engineers at UNSW Sydney has developed a method to reset a quantum computer—that is, to prepare a quantum bit in the '0' state—with very high confidence, as needed for reliable quantum computations. ...

Optics & Photonics Dec 15, 2021

Flawed diamonds may provide perfect interface for quantum computers

Flaws in diamonds—atomic defects where carbon is replaced by nitrogen or another element—may offer a close-to-perfect interface for quantum computing, a proposed communications exchange that promises to be faster and ...

Quantum Physics Aug 28, 2020

Google conducts largest chemical simulation on a quantum computer to date

A team of researchers with Google's AI Quantum team (working with unspecified collaborators) has conducted the largest chemical simulation on a quantum computer to date. In their paper published in the journal Science, the ...

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