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Archive for the ‘quantum physics’ category: Page 733

Jul 20, 2016

Error fix for long-lived qubits brings quantum computers nearer

Posted by in categories: computing, quantum physics

For the first time, researchers are able to extend the lifetime of a quantum bit, or qubit, using error correction – an essential step to useful quantum computers.

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Jul 20, 2016

IBM Just Put A Quantum Computer On The Cloud For Anyone To Use

Posted by in categories: computing, quantum physics

IBM just opened up access to one of its 5-qubit quantum processors for anyone to use by connecting it to the cloud. Here’s what it means for quantum research—and IBM’s top-line in years to come.

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Jul 19, 2016

Electron spin control: Levitated nanodiamond is research gem

Posted by in categories: nanotechnology, quantum physics

I’m telling folks there is much to be learn in the usage of natural and synthetic resources especially around diamonds — Nanodiamonds Magic.


WEST LAFAYETTE, Ind. — Researchers have demonstrated how to control the “electron spin” of a nanodiamond while it is levitated with lasers in a vacuum, an advance that could find applications in quantum information processing, sensors and studies into the fundamental physics of quantum mechanics.

Electrons can be thought of as having two distinct spin states, “up” or “down.” The researchers were able to detect and control the electron spin resonance, or its change from one state to the other.

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Jul 19, 2016

Quantum computers show potential to revolutionize chemistry

Posted by in categories: chemistry, neuroscience, quantum physics, robotics/AI, solar power, supercomputing, sustainability

Like this feature on QC.


If you have trouble wrapping your mind around quantum physics, don’t worry — it’s even hard for supercomputers. The solution, according to researchers from Google, Harvard, Lawrence Berkeley National Laboratories and others? Why, use a quantum computer, of course. The team accurately predicted chemical reaction rates using a supercooled quantum circuit, a result that could lead to improved solar cells, batteries, flexible electronics and much more.

Chemical reactions are inherently quantum themselves — the team actually used a quote from Richard Feynman saying “nature isn’t classical, dammit.” The problem is that “molecular systems form highly entangled quantum superposition states, which require many classical computing resources in order to represent sufficiently high precision,” according to the Google Research blog. Computing the lowest energy state for propane, a relatively simple molecule, takes around ten days, for instance. That figure is required in order to get the reaction rate.

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Jul 19, 2016

Post-Quantum Cryptography Aims To Fend Off Advanced Hack Attacks

Posted by in categories: cybercrime/malcode, encryption, internet, quantum physics

Luv it; more believers.


Quantum computers promise to enable faster, far more complex calculations than today’s silicon chip-based computers. But they also raise the possibility that future computers could retroactively break the security of any digital communications that exist today, which is why Google is experimenting with something called “post-quantum cryptography.”

While quantum computer development remains in its early stages, some such computers are already in operation. In theory, future generations of quantum computers could “decrypt any Internet communication that was recorded today, and many types of information need to remain confidential for decades,” software engineer Matt Braithwaite wrote yesterday in a post on Google’s security blog. “Thus even the possibility of a future quantum computer is something that we should be thinking about today.”

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Jul 19, 2016

Weird quantum effects travel over hundreds of miles

Posted by in categories: particle physics, quantum physics

I shared this yesterday; however, another article with another spin (no pun intended)


Working at the Massachusetts Institute of Technology’s (MIT) Fermilab physics laboratory in Illinois, a team of physicists studied the states of neutrinos, among the smallest components of an atom.

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Jul 18, 2016

Weird quantum effects stretch across hundreds of miles

Posted by in categories: particle physics, quantum physics

Interesting study occurring on subatomic particles (aka neutrinos) in how they can be in superposition, without individual identities, when traveling hundreds of miles.

Now, MIT physicists have found that subatomic particles called can be in superposition, without individual identities, when traveling hundreds of miles. Their results, to be published later this month in Physical Review Letters, represent the longest distance over which quantum mechanics has been tested to date.

A subatomic journey across state lines

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Jul 18, 2016

New light harvesting potentials

Posted by in categories: materials, quantum physics

By narrowing the bandgap of titania and graphene quantum dots.

Researchers have found a method of harvesting light.


Griffith University researchers have discovered significant new potentials for light harvesting through narrowing the bandgap of titania and graphene quantum dots.

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Jul 18, 2016

The birth of quantum holography: Making holograms of single light particles!

Posted by in categories: particle physics, quantum physics

Until quite recently, creating a hologram of a single photon was believed to be impossible due to fundamental laws of physics. However, scientists at the Faculty of Physics, University of Warsaw, have successfully applied concepts of classical holography to the world of quantum phenomena. A new measurement technique has enabled them to register the first ever hologram of a single light particle, thereby shedding new light on the foundations of quantum mechanics.

Scientists at the Faculty of Physics, University of Warsaw, have created the first ever hologram of a single light particle. The spectacular experiment, reported in the journal Nature Photonics, was conducted by Dr. Radoslaw Chrapkiewicz and Michal Jachura under the supervision of Dr. Wojciech Wasilewski and Prof. Konrad Banaszek. Their successful registering of the hologram of a single photon heralds a new era in holography: quantum holography, which promises to offer a whole new perspective on quantum phenomena.

“We performed a relatively simple experiment to measure and view something incredibly difficult to observe: the shape of wavefronts of a single photon,” says Dr. Chrapkiewicz.

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Jul 18, 2016

Research breakthrough towards ‘practical’ quantum computing future

Posted by in categories: computing, quantum physics

This truly makes QC more practical on many fronts. First, no need for QC to reside in an “icebox” room/ environment. Second, with the recent findings on making quantum computing scalable; we now have a method in place to not make QC devices over heat as well. So, again another major step forward by Sydney and their partners in Switzerland and Germany.

http://www.itwire.com/development/73884-research-breakthroug…uture.html


A group of international researchers, including a leading research from the University of Sydney, has made a breakthrough discovery, making a conducting carbon material that they demonstrated could be used to perform quantum computing at room temperature, rather than near absolute zero (−273°C).

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