Menu

Blog

Archive for the ‘particle physics’ category: Page 121

Jun 18, 2023

Qubit Quest Takes a Topological Turn

Posted by in categories: information science, particle physics, quantum physics, robotics/AI

The compelling feature of this new breed of quasiparticle, says Pedram Roushan of Google Quantum AI, is the combination of their accessibility to quantum logic operations and their relative invulnerability to thermal and environmental noise. This combination, he says, was recognized in the very first proposal of topological quantum computing, in 1997 by the Russian-born physicist Alexei Kitaev.

At the time, Kitaev realized that non-Abelian anyons could run any quantum computer algorithm. And now that two separate groups have created the quasi-particles in the wild, each team is eager to develop their own suite of quantum computational tools around these new quasiparticles.

Jun 17, 2023

Large Hadron Collider may be closing in on the universe’s missing antimatter

Posted by in category: particle physics

Physicists at the Large Hadron Collider (LHC) are closing in on an explanation for why we live in a universe of matter and not antimatter.

Matter and antimatter are two sides of the same coin. Every type of particle has an anti-particle, which is its equal and opposite. For instance, the antimatter equivalent of a negatively charged electron is a positively charged positron.

Jun 17, 2023

World’s first cosmic-ray GPS can detect underground movement

Posted by in categories: futurism, particle physics

A team of scientists have successfully demonstrated the world’s first cosmic-ray GPS to detect movement underground and in volcanoes which can potentially aid in future search-and-rescue missions.

Cosmic rays are high-energy particles originating from outer space, including sources such as the sun, distant galaxies, supernovae, and other celestial bodies. Although we can’t see or feel cosmic rays directly, they constantly bombard the Earth from outer space.

In fact, these particles are so abundant that scientists estimate one cosmic ray hits one square centimeter of the Earth’s surface every minute! Scientists study cosmic rays to learn about the universe and how particles interact at high energies.

Jun 16, 2023

Baldness breakthrough? New RNA treatment may stimulate hair growth

Posted by in categories: innovation, particle physics

Scientists say they were able to stimulate hair growth in mice by utilizing an RNA particle, a development that could eventually lead to another treatment for baldness in humans.

Jun 16, 2023

Underground navigation maybe possible with cosmic-ray muons, research shows

Posted by in categories: mapping, particle physics, robotics/AI, transportation

Superfast, subatomic-sized particles called muons have been used to wirelessly navigate underground for the first time. By using muon-detecting ground stations synchronized with an underground muon-detecting receiver, researchers at the University of Tokyo were able to calculate the receiver’s position in the basement of a six-story building.

As GPS cannot penetrate rock or water, this new technology could be used in future search and rescue efforts, to monitor undersea volcanoes, and guide autonomous vehicles underground and underwater. The findings are published in the journal iScience.

GPS, the , is a well-established navigation tool and offers an extensive list of positive applications, from safer air travel to real-time location mapping. However, it has some limitations. GPS signals are weaker at and can be jammed or spoofed (where a counterfeit signal replaces an authentic one). Signals can also be reflected off surfaces like walls, interfered with by trees, and can’t pass through buildings, rock or water.

Jun 15, 2023

Keith Ward — Why is Consciousness so Mysterious?

Posted by in categories: chemistry, neuroscience, particle physics

How can the mindless microscopic particles that compose our brains ‘experience’ the setting sun, the Mozart Requiem, and romantic love? How can sparks of brain electricity and flows of brain chemicals literally be these felt experiences or be ‘about’ things that have external meaning? How can consciousness be explained?

Free access to Closer To Truth’s library of 5,000 videos: http://bit.ly/376lkKN

Continue reading “Keith Ward — Why is Consciousness so Mysterious?” »

Jun 15, 2023

Quantum interference of light: Anomalous phenomenon found

Posted by in categories: particle physics, quantum physics

A counterintuitive facet of the physics of photon interference has been uncovered by three researchers of Université libre de Bruxelles, Belgium. In an article published this month in Nature Photonics, they have proposed a thought experiment that utterly contradicts common knowledge on the so-called bunching property of photons. The observation of this anomalous bunching effect seems to be within reach of today’s photonic technologies and, if achieved, would strongly impact on our understanding of multiparticle quantum interferences.

One of the cornerstones of quantum physics is Niels Bohr’s complementarity principle, which, roughly speaking, states that objects may behave either like particles or like waves. These two mutually exclusive descriptions are well illustrated in the iconic , where particles are impinging on a plate containing two slits. If the trajectory of each particle is not watched, one observes wave-like interference fringes when collecting the particles after going through the slits. But if the trajectories are watched, then the fringes disappear and everything happens as if we were dealing with particle-like balls in a .

As coined by physicist Richard Feynman, the interference fringes originate from the absence of “which-path” information, so that the fringes must necessarily vanish as soon as the experiment allows us to learn that each particle has taken one or the other path through the left or right slit.

Jun 15, 2023

For experimental physicists, quantum frustration leads to fundamental discovery

Posted by in categories: particle physics, quantum physics

A team of physicists, including University of Massachusetts assistant professor Tigran Sedrakyan, recently announced in the journal Nature that they have discovered a new phase of matter. Called the “chiral Bose-liquid state,” the discovery opens a new path in the age-old effort to understand the nature of the physical world.

Under everyday conditions, matter can be a solid, liquid or gas. But once you venture beyond the everyday—into temperatures approaching absolute zero, things smaller than a fraction of an atom or which have extremely low states of energy—the world looks very different. “You find quantum states of matter way out on these fringes,” says Sedrakyan, “and they are much wilder than the three classical states we encounter in our everyday lives.”

Sedrakyan has spent years exploring these wild quantum states, and he is particularly interested in the possibility of what physicists call “band degeneracy,” “moat bands” or “kinetic frustration” in strongly interacting quantum matter.

Jun 14, 2023

Quantum frustration leads to a new state of matter: chiral Bose-liquid state

Posted by in categories: particle physics, quantum physics

A team of theoretical and experimental physicists has made a fundamental discovery of a new state of matter.

In our day-to-day life, we encounter three types of matter—solid, liquid, and gas. But, when we move beyond the realm of daily life, we see exotic or quantum states of matter, such as plasma, time crystals, and Bose-Einstein condensate.

These are observed when we go to low temperatures near absolute zero or on atomic and subatomic scales, where particles can have very low energies. Scientists are now claiming that they have found a new phase of matter.

Jun 14, 2023

Scientists Predict Never-Before-Seen Crystal Structures With Unexpected Chemistry

Posted by in categories: chemistry, information science, particle physics

Ultra-high pressure can have strange effects in physics and chemistry, and in a new study, high-pressure modeling has led to the prediction of four new compounds: compounds that don’t form in normal ways, have crystal structures we’ve never seen before, and can even act as superconductors in certain temperatures.

Those compounds are Li14 Cs, Li8Cs, Li7Cs, and Li6Cs, and they’re all formed from lithium (Li) and cesium (Cs) – though not in a conventional way. All four are superconductors, which means electricity can flow through them without resistance or energy loss.

The scientists behind the study used a special crystal structure prediction algorithm called USPEX (Universal Structure Predictor: Evolutionary Xtallography) to find these new compounds. It’s known as an evolutionary algorithm, using a range of methods to figure out the probability of how atoms will link together.