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Category: quantum physics

What does the future hold for computing? Experts at the Networked Quantum Information Technologies Hub (NQIT), based at Oxford University, believe our next great technological leap lies in the development of quantum computing.

Quantum computers could solve problems it takes a conventional computer longer than the lifetime of the universe to solve. This could bring new possibilities, such as advanced drug development, superior military intelligence, greater opportunities for and enhanced encryption security.

Quantum computers also present real risks, but scientists are already working on new forms of encryption that even a quantum computer couldn’t crack. Experience tells us that we should think about the applications and implications of quantum computing long before they become reality as we strive to ensure a safe future in the exciting new age of .

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Based on the conclusion of this agreement, QST and Osaka University will greatly contribute to the promotion of science, technology and academia, and the creation of innovation in a variety of different fields. The institutes will create a new framework for collaboration and cooperation through the use of the research and development ability, state-of-the-art facilities, and human resources.

In addition, under this agreement, QST Kansai Photon Science Institute and the Osaka University Institute of Laser Engineering have simultaneously concluded a memorandum for cooperation in light and quantum beam science.

It is hoped that the development and utilization research of internationally-competitive power lasers will be greatly accelerated through systematic collaboration.

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Using ultrafast laser flashes, physicists from the Max Planck Institute have generated the fastest electric current that has ever been measured inside a solid material.

In the field of electronics, the principle ‘the smaller, the better’ applies. Some building blocks of computers or mobile phones, however, have become nearly as small today as only a few atoms. It is therefore hardly possible to reduce them any further.

Another factor for the performance of electronic devices is the speed at which electric currents oscillate. Scientists at the Max Planck Institute of Quantum Optics have now created electric currents inside solids which exceed the frequency of visible light by more than ten times They made electrons in silicon dioxide oscillate with ultrafast laser pulses. The conductivity of the material which is typically used as an insulator was increased by more than 19 orders of magnitude.

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Oh boy!

Space vacuum that appears to be stable due to the complete absence of substance in it, is likely to be fraught with great danger. The idea about the destruction of the universe is based on the hypothesis of vacuum instability. Any system in our world has a certain amount of potential energy. But, space vacuum is not as empty as it may seem to be. Vacuum in space is filled with quantum particles, which, in turn, may seek their own “stability” to annihilate the material world in its entirety during the process.

A video about the possibility of self-destruction of our universe has gone on the Internet.

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A nice read on the who’s who in QC: congrats Vern Brownell and Michelle S. in making the top 13 list.

Leaders in quantum computing discuss the challenges and potential for this technology across finance, AI, and many other fields.

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What happens when you knock the carbon out of diamonds? You end up maintaining 100 percent quantum integrity; therefore, you can now transmit multitude of Qubits together over a long distance instead of 1 Qubit in one transmission and among multiple QC Devices.

New breakthrough paves the way for the first practical quantum computers

Quantum computers are a reality but unlike the first traditional computers, which were large enough to fill a room, most of today’s quantum computers are very small with one, five, or even 16 qubits at their core and getting to the point where we have a truly practical quantum computer is going to require component by component advances until, one day, we get to the point where all of the blocks “just work”.

Researchers from Harvard University and Sandia Ion Beam Laboratory have just managed to make such an advance – by figuring out a way to link multiple quantum systems together within one piece of material.

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For the first time, an experiment has directly imaged electron orbits in a high-magnetic field, illuminating an unusual collective behavior in electrons and suggesting new ways of manipulating the charged particles.

The study, conducted by researchers at Princeton University and the University of Texas-Austin was published Oct. 21, in the journal Science. The study demonstrates that the electrons, when kept at very low temperatures where their quantum behaviors emerge, can spontaneously begin to travel in identical elliptical paths on the surface of a crystal of bismuth, forming a quantum fluid state. This behavior was anticipated theoretically during the past two decades by researchers from Princeton and other universities.

“This is the first visualization of a quantum fluid of electrons in which interactions between the electrons make them collectively choose orbits with these unusual shapes,” said Ali Yazdani, the Class of 1909 Professor of Physics at Princeton, who led the research.

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An entirely new type of computer that blends optical and electrical processing could get around this impending processing constraint and solve superlarge optimization problems. If it can be scaled up, this non-traditional computer could save costs by finding more optimal solutions to problems that have an incredibly high number of possible solutions.

There is a special type of problem – called a combinatorial optimization problem – that traditional computers find difficult to solve, even approximately. An example is what’s known as the “traveling salesman” problem, wherein a salesman has to visit a specific set of cities, each only once, and return to the first city, and the salesman wants to take the most efficient route possible. This problem may seem simple but the number of possible routes increases extremely rapidly as cities are added, and this underlies why the problem is difficult to solve.

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