Fractals are a source of endless fascination to me. Life itself relies on many of the concepts of fractals: trees are fractal, as are feathers, coast lines, and many other things in nature. Indeed, it was the realization that landscapes are fractal that made modern animated films possible. But, what about fractional dimensions in quantum mechanics? It turns out that electrons in a Sierpiński gasket are also fractal, and that has some pretty cool consequences. A fractal is a weird beast. A line is 1D, a square is 2D, and a cube is 3D: dimensions come in integer quantities. Except they don't. For instance, it is possible to create a shape that has a finite area, but a perimeter that is infinitely long (the construction of such a shape is pictured below). A shape with these properties does not behave like a 2D object, but it's not a 3D object. Instead, it is a two-and-a-bit-D object. That is a fractal. Quantum fractals Quantum mechanics has a weird relationship with fractals. Right … [Read more...] about Fractal structure produces fractal electrons with fractal energies

# Atoms and electrons

## Announcing the Discovery of an Atomic Electronic Simulator

Targeting applications like neural networks for machine learning, a new discovery out of the University of Alberta and Quantum Silicon Inc. in Edmonton, Canada is paving the way for atomic ultra-efficient electronics, the need for which is increasingly critical in our data-driven society. The key to unlocking untold potential for the greenest electronics? Creating bespoke atomic patterns to in turn control electrons. "Atoms are a bit like chairs that electrons sit on," said Robert Wolkow, physics professor and principal investigator on the project. "Much as we can affect conversations at a dinner party by controlling the grouping of chairs and assigned seating, controlling the placement of single atoms and electrons can affect conversations among electronics." Wolkow explained that while atomic control over structures is not uncommon, making custom patterns to create new useful electronic devices has been beyond reach. Until now. Though the tools of nanotechnology have permitted … [Read more...] about Announcing the Discovery of an Atomic Electronic Simulator

## A Quantum Gate Between Atoms and Photons May Help in Scaling up Quantum Computers

The quantum computers of the future will be able to perform computations that cannot be done on today's computers. These may likely include the ability to crack the encryption that is currently used for secure electronic transactions, as well as the means to efficiently solve unwieldy problems in which the number of possible solutions increases exponentially. Research in the quantum optics lab of Prof. Barak Dayan in the Weizmann Institute of Science may be bringing the development of such computers one step closer by providing the "quantum gates" that are required for communication within and between such quantum computers. In contrast with today's electronic bits that can only exist in one of two states—zero or one—quantum bits known as qubits can also be in states that correspond to both zero and one at the same time. This is called quantum superposition, and it gives qubits an edge as a computer made of them could perform numerous computations in … [Read more...] about A Quantum Gate Between Atoms and Photons May Help in Scaling up Quantum Computers

## Atoms and antiatoms haven’t crashed Albert Einstein’s theory of relativity—yet

By Adrian ChoApr. 4, 2018 , 1:20 PM As any Star Trek fan knows, antimatter is supposed to be the exact opposite of matter—so that if the two touch they annihilate each other in a flash of pure energy. Now, after decades of trying, physicists have precisely compared atoms and antiatoms. The two appear to behave the same way to within a tiny uncertainty, and in a convoluted way the result supports the foundation of Albert Einstein's theory of special relativity. It also opens the way to more stringent comparisons of matter-antimatter—and the possibility that the two aren't exact opposites. "We've been waiting for this for 30 years," says Thomas Udem, an experimental physicist at the Max Planck Institute for Quantum Optics in Garching, Germany, who works on precision measurements of hydrogen. "I consider it an incredible achievement." The measurement is "a piece of art," says Stefan Ulmer, an experimenter at Japan's RIKEN research institute in Wako who also was not involved … [Read more...] about Atoms and antiatoms haven’t crashed Albert Einstein’s theory of relativity—yet

## Intel announces dual-core Atom, and OEM partners for future quad-core chips

It looks like Intel is building on the little victories it has scored here and there in the smartphone market to make a big push for market share. First off, the company has announced a line of dual-core Atom processors (Clover Trail+). These are 32nm processors known as the Z2580 (2.0GHz), Z2560 (1.6GHz) and the Z2520 (1.2GHz). Intel promises "industry-leading performance" using its hyper-threading technology. While Intel's battery life on past silicon has been nothing to write home about, the company says that the new processors will feature battery life that will match current high-end devices.The trio will support resolution of 1900 x 1200 which sounds like we could see the processors employed in Android tablets. Speaking of Android, the line will support Android 4.2 and HSPA+ 42Mbps modems. The chipmaker has already inked pacts with ASUS, ZTE and Lenovo to use the Clover Trail+ in future smartphones and tablets made by the three manufacturers. The graphics end of the integrated … [Read more...] about Intel announces dual-core Atom, and OEM partners for future quad-core chips