Immortal quantum particles. Free Technical Library News

NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

Immortal quantum particles

21.06.2019

Theoretical physicists from the Technical University of Munich and the Institute for Physics of Complex Systems. Max Planck discovered that things that seem unthinkable in the everyday world are possible on a microscopic level.

“Until now it was assumed that quasiparticles in interacting quantum systems decay after a certain time. Now we know that the opposite is true: strong interactions can even completely stop the decay,” explains Frank Pollmann, professor of theoretical solid state physics at the Technical University of Munich. One example of such quasiparticles is a phonon - a quantum of vibrational motion of crystal atoms.

The concept of quasiparticles was invented by the physicist and Nobel Prize winner Lev Davydovich Landau. He used it to describe the collective states of many particles or, more precisely, their interactions under the influence of electric or magnetic forces. Due to this interaction, several particles act as one.

From a physical point of view, this oscillation is a wave that is transformed into matter, which, according to quantum mechanical wave-particle duality, is possible. Therefore, immortal quasiparticles do not violate the second law of thermodynamics. Their entropy remains constant, and decay is stopped.

This discovery also explains phenomena that have baffled scientists so far. Experimental physicists have measured that the Ba3CoSB2O9 magnetic compound is surprisingly stable. Magnetic quasiparticles - magnons - are responsible for this. Other quasi-particles - rotons - ensure that helium, which is a gas on the surface of the Earth, at absolute zero becomes a liquid that can flow indefinitely.

<< Back: Ireland plans to achieve zero emissions of harmful substances 22.06.2019

>> Forward: Biodegradable plastic from cotton waste 21.06.2019

Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

Autonomous fighting robots of the Pentagon 20.06.2013

As part of a pilot initiative called the Autonomous Research Pilot Initiative, work has begun to involve young scientists in the process of creating ground, air and underwater robotic systems with a new level of autonomy. Currently, seven government research groups have already received a total of $45 million to develop new algorithms and equipment that dramatically increase the independence of combat robots. In particular, technologies are being created that will allow combat vehicles to act as a single swarm, continuously exchanging information with each other. Thanks to this, even robots with a primitive "brain" will be able to perform complex tasks, such as continuous monitoring of the region, with automatic distribution of resources within the swarm.

The researchers also plan to improve sensors that provide autonomy, in particular sensors that allow you to move independently over any terrain and quickly respond to changing conditions. The main goal of this program is to give robots the ability to respond to other moving objects (targets) in a rapidly changing environment. Simply put, robots will be able to detect various objects and events and react to them jointly or one by one. This does not always require powerful artificial intelligence, for example, a school of fish moves as a single organism without the use of highly intelligent analysis.

In total there will be 7 different directions in which combat autonomous systems will be improved. So far, special attention is being paid to a group of small cheap robots - this is the direction the US military considers the most promising. Indeed, a swarm of even the simplest autonomous robots can perform a fairly wide range of combat missions, for example, "find a given target, accompany it, carry out target designation." In addition, a swarm of cheap robots is more cost-effective than powerful universal machines. At the same time, robots like the Atlas humanoid terminator will also continue to improve - they will be assigned especially complex and responsible tasks that more primitive machines cannot cope with.

In the coming years, robots will begin to dominate the battlefield, not with the help of high-tech humanoid terminators, but with swarms of small UAVs and ground vehicles that will quickly locate a target, hit it with miniature ammunition or give target designation to artillery and aircraft. Other areas of the Autonomous Research Pilot Initiative include the creation of environmental perception systems, automatic driving systems for armored vehicles, and rapid target acquisition and acquisition.

See full Archive of science and technology news, new electronics

All languages of this page

Home page | Library | Articles | Website map | Site Reviews