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General Physics Oct 26, 2006

Qubit Noise Matters More Than Expected

“What we have noticed,” J.H. Eberly tells PhysOrg.com, “is that noise is more important than it appears anyone expected. Widely understood, long-known features of the effect of noise on quantum systems fail to be true ...

General Physics Jun 20, 2006

Measuring single qubits

“In a quantum system,” explains Alexander Korotkov at the University of California, Riverside, “the result of a measurement can change the system so that it moves in the same direction as the result.” Testing this ...

General Physics May 8, 2006

12-qubits reached in quantum information quest

In the drive to understand and harness quantum effects as they relate to information processing, scientists in Waterloo and Massachusetts have benchmarked quantum control methods on a 12-Qubit system. Their research was performed ...

Oct 17, 2005

Qubit link could pave the way for first quantum computers

Scientists at The University of Manchester have made a major breakthrough which could pave the way for a new type of high-speed computer. Professor Richard Winpenny, of the School of Chemistry and a team of international ...

Quantum Physics Apr 5, 2024

Quantinuum quantum computer using Microsoft's 'logical quantum bits' runs 14,000 experiments with no errors

A team of computer engineers from quantum computer maker Quantinuum, working with computer scientists from Microsoft, has found a way to greatly reduce errors when running experiments on a quantum computer. The combined group ...

Quantum Physics Nov 29, 2017

Scientists demonstrate one of largest quantum simulators

Physicists at MIT and Harvard University have demonstrated a new way to manipulate quantum bits of matter. In a paper published today in the journal Nature, they report using a system of finely tuned lasers to first trap ...

Quantum Physics Jan 27, 2010

Using degrees of freedom to get hyperentanglement

(PhysOrg.com) -- One of the biggest challenges scientists are grappling with today is the creation of an efficient quantum computer. There are a number of models out there, and hundreds of scientists and researchers around ...

General Physics Nov 9, 2021

How a novel radio frequency control system enhances quantum computers

A team of physicists and engineers at Lawrence Berkeley National Laboratory (Berkeley Lab) successfully demonstrated the feasibility of low-cost and high-performance radio frequency modules for qubit controls at room temperature. ...

Quantum Physics Nov 27, 2020

A phononic crystal coupled to a transmission line via an artificial atom

Researchers have recently displayed the interaction of superconducting qubits; the basic unit of quantum information, with surface acoustic wave resonators; a surface-wave equivalent of the crystal resonator, in quantum physics. ...

Quantum Physics Apr 17, 2019

World-record quantum computing result for Sydney teams

A world-record result in reducing errors in semiconductor 'spin qubits', a type of building block for quantum computers, has been achieved using the theoretical work of quantum physicists at the University of Sydney Nano ...

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