Archive for the ‘particle physics’ category: Page 361

Dec 11, 2018

How developments in Quantum Computing could affect cryptocurrencies

Posted by in categories: bitcoin, computing, cryptocurrencies, economics, mathematics, particle physics, quantum physics

by Eloisa Marchesoni

Today, I will talk about the recent creation of really intelligent machines, able to solve difficult problems, to recreate the creativity and versatility of the human mind, machines not only able to excel in a single activity but to abstract general information and find solutions that are unthinkable for us. I will not talk about blockchain, but about another revolution (less economic and more mathematical), which is all about computing: quantum computers.

Quantum computing is not really new, as we have been talking about it for a couple of decades already, but we are just now witnessing the transition from theory to realization of such technology. Quantum computers were first theorized at the beginning of the 1980s, but only in the last few years, thanks to the commitment of companies like Google and IBM, a strong impulse has been pushing the development of these machines. The quantum computer is able to use quantum particles (imagine them to be like electrons or photons) to process information. The particles act as positive or negative (i., the 0 and the 1 that we are used to see in traditional computer science) alternatively or at the same time, thus generating quantum information bits called “qubits”, which can have value either 0 or 1 or a quantum superposition of 0 and 1.

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Dec 11, 2018

Answering the mystery of what atoms do when liquids and gases meet

Posted by in categories: mathematics, particle physics

How atoms arrange themselves at the smallest scale was thought to follow a ‘drum-skin’ rule, but mathematicians have now found a simpler solution.

Atomic arrangements in different can provide a lot of information about the properties of materials, and what the potential is for altering what they can be used for.

However, where two materials touch – at their interface – arise that make predicting the arrangement of atoms difficult.

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Dec 10, 2018

Two research rockets successfully launched over the Norwegian Sea early Dec. 8 carrying an experiment to study the explosive process that allows charged particles from space to stream into Earth’s atmosphere

Posted by in categories: particle physics, space travel

The results promise to shed light on this and, in the long run, help us better predict how and when Earth’s magnetic shield can suddenly become porous to let outside particles in. Details:…51Yf7jUjKw

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Dec 10, 2018

Voyager 2 has finally entered interstellar space, more than 40 years after its launch

Posted by in categories: particle physics, space

It’s pretty cool how NASA knows the spacecraft is in interstellar space.

It’s only the second object made by humans to ever reach this distance, following Voyager 1 in 2012.

The long journey: Since launching more than 40 years ago back in 1977, the probe has traveled 11 billion miles to get to cross into interstellar space. While it launched before Voyager 1, its flight path put Voyager 2 on a slower path to reach this milestone.

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Dec 10, 2018

NASA’s Newly Arrived OSIRIS-REx Spacecraft Discovers Water on Bennu

Posted by in categories: particle physics, security, space

We’ve discovered water on the asteroid Bennu! Our OSIRIS-REx mission has revealed water locked inside the clays that make up Bennu.

Recently analyzed data from NASA’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) mission has revealed water locked inside the clays that make up its scientific target, the asteroid Bennu.

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Dec 7, 2018

Tiny ceramic particles make this building material fire-safe

Posted by in categories: computing, particle physics

Inspired by the insulation on a humble electrical cable, researchers have found that tiny ceramic particles can make plastic-backed cladding fire-safe.

How do you make a light-weight cladding material that doesn’t catch fire? It’s a question the building industry globally is wrestling with in the wake of the 2017 Grenfell Tower blaze in London that cost the lives of 72 people.

But according to new research, the answer is under your desk in the plastic insulation around the electrical cable powering your computer.

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Dec 7, 2018

Experiments at PPPL show remarkable agreement with satellite sightings

Posted by in categories: mobile phones, particle physics, satellites

As on Earth, so in space. A four-satellite mission that is studying magnetic reconnection—the breaking apart and explosive reconnection of the magnetic field lines in plasma that occurs throughout the universe—has found key aspects of the process in space to be strikingly similar to those found in experiments at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL). The similarities show how the studies complement each other: The laboratory captures important global features of reconnection and the spacecraft documents local key properties as they occur.

The observations made by the Magnetospheric Multiscale Satellite (MMS) mission, which NASA launched in 2015 to study in the magnetic field that surrounds the Earth, correspond quite well with past and present laboratory findings of the Magnetic Reconnection Experiment (MRX) at PPPL. Previous MRX research uncovered the process by which rapid reconnection occurs and identified the amount of magnetic that is converted to particle energy during the process, which gives rise to northern lights, and geomagnetic storms that can disrupt cell phone service, black out power grids and damage orbiting satellites.

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Dec 7, 2018

Harnessing the power of ‘spin orbit’ coupling in silicon: Scaling up quantum computation

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

Australian scientists have investigated new directions to scale up qubits—utilising the spin-orbit coupling of atom qubits—adding a new suite of tools to the armory.

Spin-orbit coupling, the coupling of the qubits’ orbital and spin degree of freedom, allows the manipulation of the via electric, rather than magnetic-fields. Using the electric dipole coupling between qubits means they can be placed further apart, thereby providing flexibility in the chip fabrication process.

In one of these approaches, published in Science Advances, a team of scientists led by UNSW Professor Sven Rogge investigated the spin-orbit coupling of a boron atom in silicon.

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Dec 3, 2018

Henri Becquerel and the Serendipitous Discovery of Radioactivity

Posted by in categories: education, engineering, particle physics, transportation

Antoine Henri Becquerel (born December 15, 1852 in Paris, France), known as Henri Becquerel, was a French physicist who discovered radioactivity, a process in which an atomic nucleus emits particles because it is unstable. He won the 1903 Nobel Prize in Physics with Pierre and Marie Curie, the latter of whom was Becquerel’s graduate student. The SI unit for radioactivity called the becquerel (or Bq), which measures the amount of ionizing radiation that is released when an atom experiences radioactive decay, is also named after Becquerel.

Becquerel was born December 15, 1852 in Paris, France, to Alexandre-Edmond Becquerel and Aurelie Quenard. At an early age, Becquerel attended the preparatory school Lycée Louis-le-Grand, located in Paris. In 1872, Becquerel began attending the École Polytechnique and in 1874 the École des Ponts et Chaussées (Bridges and Highways School), where he studied civil engineering.

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Dec 1, 2018

New Research Could Rewrite Physics From the Ground Up

Posted by in categories: cosmology, particle physics

Four researchers came together to propose the addition of six novel particles to tackle five enduring issues within the current Standard Model Theory. This new proposed model, detailed in APS Physics, is named SMASH for “Standard Model Axion See-saw Higgs portal inflation.” The team proposed that particles rho and axion could explain inflation and dark matter respectively, along with three heavy right-handed neutrinos.

With these findings, the researchers hope to answer the following questions about the Standard Model:

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