Menu

Blog

Archive for the ‘computing’ category: Page 796

Apr 5, 2016

World’s Smallest Diode Is Made of DNA

Posted by in categories: biotech/medical, computing, electronics, genetics

Diodes —also known as rectifiers—allow electric current to flow in just one direction. More than 40 years ago, scientists proposed miniaturizing diodes and other electronic components down to the size of single molecules, an idea that eventually helped give birth to the field of molecular electronics, which could help push computing beyond the limits of conventional silicon devices. [See “Whatever Happened to the Molecular Computer?IEEE Spectrum, October 2015]

Scientists at the University of Georgia and Ben-Gurion University of the Negev in Israel used DNA to fashion the new diode. The breakthroughs in genetics developed to sequence the human genome have now made it relatively easy to precisely manufacture and manipulate DNA, which makes the molecule a leading candidate for use in molecular electronics.

DNA’s double helix is made of paired strands of molecules known as bases. The new diode is only 11 base pairs long. (Typically, DNA is 0.34 nanometers long per base pair.)

Continue reading “World’s Smallest Diode Is Made of DNA” »

Apr 5, 2016

Physicists just discovered a new state of matter called ‘quantum spin liquid’

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

Researchers with the University of Cambridge say they have the first real evidence of a new state of matter, some 40 years after it was first theorized.

Known as “quantum spin liquid,” the matter states causes normally unbreakable electrons to fracture into pieces, called “Majorana fermions.” These fermions are an important discovery: Physicists believe the material is crucial to further develop quantum computing. Computers employing Majorana fermions would be able to carry out calculations beyond the scope of modern computers quickly, they say.

Quantum spin liquid explains some of the odd behaviors inside magnetic materials. In these materials, the electrons should behave like small bar magnets, all aligning towards magnetic north when a material is cooled. But not all magnetic materials do this — if the material contains quantum spin liquid, the electrons don’t all line up and become entangled.

Continue reading “Physicists just discovered a new state of matter called ‘quantum spin liquid’” »

Apr 4, 2016

Quantum computing: Game changer or security threat?

Posted by in categories: computing, finance, quantum physics, security

Definitely a game changer; security threat depends on who gets the technology adopted on a broad scale first prior to other countries (China? USA? Australia? Russia? UK? CAN?, etc.)


Quantum computing offers financial institutions the prospect of faster transactions and lower trading costs, but is it also a threat to security?

Read more

Apr 3, 2016

IBM’s resistive computing could massively accelerate AI — and get us closer to Asimov’s Positronic Brain

Posted by in categories: computing, robotics/AI

Neural networks have enabled a revolution in machine learning. IBM researchers show how resistive computing can be used to make them massively more powerful.

Read more

Apr 3, 2016

New link between quantum computing and black hole may solve information loss problem

Posted by in categories: computing, cosmology, quantum physics

Some more words on this idea that black holes are quantum computers.

Read more

Apr 2, 2016

All quantum communication involves nonlocality

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

Researchers of CWI, University of Gdansk, Gdansk University of Technology, Adam Mickiewicz University and the University of Cambridge have proven that quantum communication is based on nonlocality. They show that whenever quantum communication is more efficient than classical communication, it must be possible find a nonlocal correlation somewhere. Their paper ‘Quantum communication complexity advantage implies violation of a Bell inequality’, appeared in this month’s issue of the influential journal PNAS.

It has long been known that predicts counterintuitive effects such as instantaneous interaction at a distance between entangled particles. This teleportation effect, which Albert Einstein famously called ‘spooky action at a distance,’ was long thought to show that the theory of quantum mechanics was incomplete. However, in 1964, physicist J.S. Bell proved that no theory involving the principle of locality can ever reproduce all predictions of quantum mechanics. In other words, it is impossible to find classical explanations for quantum correlations. This evidence for the existence of nonlocality became known as Bell’s inequality.

For a long time, the existence of was merely of interest to philosophically minded physicists, and was considered an exotic peculiarity rather than a useful resource for practical problems in physics or computer science. This has changed dramatically in recent years. Quantum correlation proved to be very useful in information processing. In several communication tasks, using quantum effects substantially reduced the communication complexity: the minimum number of steps necessary to complete a certain task between two parties. In such cases, there is a so-called quantum advantage in communication complexity.

Read more

Apr 2, 2016

The Bernie Sanders Phenomenon and Transhumanism

Posted by in categories: business, computing, economics, employment, geopolitics, mathematics, robotics/AI, transhumanism, virtual reality

https://youtube.com/watch?v=9grWo5ZofmA

A lot of transhumanism friends have asked me to write about Bernie Sanders, so here are my thoughts:


The transhumanism movement has been dramatically growing in size—and most of that growth is from millennials and youth joining. Transhumanists want to use science and technology to radically improve the human race, and the onslaught of new gear and gadgets to do that—like virtual reality, robots, and chip implants —are giving them plenty of ammunition to do that.

Continue reading “The Bernie Sanders Phenomenon and Transhumanism” »

Apr 2, 2016

‘Machine learning’ is a revolution as big as the internet or personal computers

Posted by in categories: computing, internet, robotics/AI

Welcome to the future.

Read more

Apr 1, 2016

Brainstorming New Ways To Test If Cosmos Is One Big Computer Simulation

Posted by in categories: computing, space

Blast from the past. Someone in an astrobiology group seemed to question the validity of the question in my recent story on 5 Questions For E.T. about whether the universe is artificial. Here’s my response:


In the dog days of summer, when a gush of hot air from a Fifth Avenue subway grate can feel as real as it gets, take heart that the downtown traffic nipping at your heels may just be part of a cosmic-scale computer simulation.

The idea that the cosmos and everything in it could be a super-advanced civilization’s version of Xbox first came to the fore a little over a decade ago.

Continue reading “Brainstorming New Ways To Test If Cosmos Is One Big Computer Simulation” »

Apr 1, 2016

Artificial intelligence steals money from banking customers

Posted by in categories: computing, economics, humor, robotics/AI

However, Rob Ott, a computer scientist at Stanford University in Palo Alto, California, who did work on the system—Deep Learning Interface for Accounting (DELIA)—notes that it simply held all of the missing money, some $40,120.16, in a “rainy day” account. “I don’t think you can attribute malice,” he says. “I’m sure DELIA was going to give the money back.”


Technologists shocked by program’s ability to set its own priorities—such as getting rich.

Read more