Current acceleration in quantum plasma. Free Technical Library News

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Current acceleration in quantum plasma

06.04.2012

At present, electronics require more and more compact and powerful processors. German scientists have discovered a new, previously unknown phenomenon in quantum plasma that can solve this problem.

Plasma is an ionized electrically conducting gas, consisting of positive (ions) and negative charge carriers (so-called non-degenerate electrons). Almost all of the ordinary matter in the universe is mostly plasma, and on Earth it is used to produce energy in controlled thermonuclear fusion, medicine, industry, and so on.

Physicists from the Ruhr University in Bochum (Germany) found that a negatively charged potential allows you to combine positively charged particles (ions) into atom-like plasma structures. Thus, the electrical current begins to flow much faster and more efficiently, opening up new vistas for nanotechnology. The new effect is observed at the atomic level in quantum plasma. This is the case when, compared with normal, the density of quantum plasma is very high, and its temperature, on the contrary, is low.

The negative potential discovered by scientists causes an attractive force between ions, which then form lattices. These gratings are compressed, the distance between them is reduced, and the current flows through them much faster. This phenomenon is due to the collective processes of interaction of degenerate electrons with quantum plasma. Such plasma can be found, for example, in bright stars with a shortage of nuclear fuel (white dwarfs) or obtained in the laboratory using laser radiation.

Research by physicists at the Ruhr University opens up the possibility of ionic crystallization at the atomic scale. This is a completely new line of research that can link different disciplines of physics. In practical terms, the discovery can help create chips for quantum computers, semiconductors, ultra-thin metal films and metal nanostructures.

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How is chess played 15.03.2002

German scientists have found that when playing chess, especially when analyzing the situation on the board, experienced masters and ordinary amateurs use different parts of the brain.

20 people were seated at the boards. All of them had ten years of playing experience, but some had the title of master, the rest did not have any sports titles. Computers played against people. During the game, the chess player's brain was scanned every five seconds with a tomograph, which determined the volume of blood flow in different parts of the brain. It is this indicator that indicates the activity of the nervous tissue in this place.

It turned out that the frontal and parietal lobes of the cerebral cortex work in the masters during the game - it is believed that the centers of long-term memory are located there. And for amateurs, it is mainly the central region of the temporal lobes of the brain that is involved, where short-term memory is concentrated.

The conclusion of the researchers: when playing, the master draws on his extensive knowledge, the experience of tens of thousands of games, and the amateur basically has time to react to the opponent's just made move.

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