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Archive for the ‘computing’ category: Page 408

Apr 5, 2020

Decoherence Is a Problem for Quantum Computing, But … — Scientific American Blog Network

Posted by in categories: computing, quantum physics

The interactions with the environment that cause it are what make quantum measurement possible.

Apr 5, 2020

Honeywell plans a quantum computing speed boost of 100,000x by 2025

Posted by in categories: business, computing, quantum physics

It hopes to leapfrog rivals as it reenters the computing business.

Apr 4, 2020

Quantum computing at the nanoscale

Posted by in categories: computing, nanotechnology, quantum physics

It’s been said that quantum computing will be like going from candlelight to electric light in the way it will transform how we live. Quite a picture, but what exactly is quantum computing?

For the answer to that question, we’ll have to visit a scale of existence so small that the usual rules of physics are warped, stretched and broken, and there are few layperson terms to lean on. Strap yourself in.

Luckily, we have a world-leading researcher in quantum computing, Professor David Reilly, to guide us. “Most modern technologies are largely based on electromagnetism and Newtonian mechanics,” says Reilly in a meeting room at the University’s Nano Hub. “Quantum computing taps into an enormous new area of nano physics that we haven’t harnessed yet.”

Apr 3, 2020

‘Rebooting the brain’: Our fight to bring people back from the dead

Posted by in categories: biotech/medical, computing, neuroscience

Studies of hibernating animals suggest that the molecular and synaptic integrity of neurons in the cerebral cortex that underlie self and consciousness is maintained in many cases when from the outside the brain appears dead.


A striking feature of medicine over the past few centuries has been our growing ability to bring people back from the “dead.” For most of human history, patients who were unconscious and not breathing were treated as though they had died. But the concept of resuscitation emerged as doctors grew to understand the basic function of the lungs and airways. That led to new techniques and tools capable of restoring both breathing and heartbeat — and the realization that cardiac arrest was not always a death sentence. That, in turn, gave rise to a distinction between what’s now called clinical death versus brain death.

Continue reading “‘Rebooting the brain’: Our fight to bring people back from the dead” »

Apr 3, 2020

Special report: The simulations driving the world’s response to COVID-19

Posted by in categories: biotech/medical, computing, mathematics

Governments across the world are relying on mathematical projections to help guide decisions in this pandemic. Computer simulations account for only a fraction of the data analyses that modelling teams have performed in the crisis, Ferguson notes, but they are an increasingly important part of policymaking. But, as he and other modellers warn, much information about how SARS-CoV-2 spreads is still unknown and must be estimated or assumed — and that limits the precision of forecasts. An earlier version of the Imperial model, for instance, estimated that SARS-CoV-2 would be about as severe as influenza in necessitating the hospitalization of those infected. That turned out to be incorrect.


How epidemiologists rushed to model the coronavirus pandemic.

Apr 2, 2020

Spiral patterns in living cells could be used to create biological computers

Posted by in categories: biological, computing, quantum physics

Vortices in starfish eggs resemble those found in quantum fluids.

Apr 2, 2020

Our brains as hard drives – could we delete, modify or add memories and skills?

Posted by in categories: computing, genetics, neuroscience, virtual reality

Given the rapid development of virtual reality technology, we may very well be moving toward a time when we’re able to manage the brain’s memories.


Could we develop a similar capability? That may depend heavily upon a handful of ambitious attempts at brain-computer interfacing. But science is moving in baby steps with other tactics in both laboratory animals and humans.

Continue reading “Our brains as hard drives – could we delete, modify or add memories and skills?” »

Apr 1, 2020

Quantum internet may one day be possible through optical cavities, Caltech scientists say

Posted by in categories: computing, internet, particle physics, quantum physics

A fundamental challenge in the creation of a “quantum internet” is how to securely transmit data between two points. But one team of U.S. scientists may have found the answer.

New research from experts at the California Institute of Technology (Caltech) suggests atoms in small boxes of light — optical cavities — could soon “form the backbone technology” of the futuristic internet that relies on the mysterious properties of quantum mechanics for ultra-fast computing.

Mar 31, 2020

How to Build a 3D Map of the Universe – and Why

Posted by in categories: computing, quantum physics, space

With quantum radar, you can map the cosmos with 3D modeling and dwave quantum computer.

Mar 31, 2020

Tiny optical cavity could make quantum networks possible

Posted by in categories: computing, encryption, internet, quantum physics

Engineers at Caltech have shown that atoms in optical cavities—tiny boxes for light—could be foundational to the creation of a quantum internet. Their work was published on March 30 by the journal Nature.

Quantum networks would connect quantum computers through a system that also operates at a quantum, rather than classical, level. In theory, quantum computers will one day be able to perform certain functions faster than by taking advantage of the special properties of quantum mechanics, including superposition, which allows to store information as a 1 and a 0 simultaneously.

As they can with classical computers, engineers would like to be able to connect multiple quantum computers to share data and work together—creating a “quantum internet.” This would open the door to several applications, including solving computations that are too large to be handled by a single quantum computer and establishing unbreakably secure communications using quantum cryptography.