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Archive for the ‘particle physics’ category: Page 310

Jul 11, 2021

Researchers Discover Orbital Patterns of Trans-Neptunian Objects Vary Based on Their Color

Posted by in categories: chemistry, evolution, particle physics, space

Data collected can be used to provide new insights into the evolution of the Kuiper Belt, and the larger solar system.

Trans-Neptunian Objects (TNOs), small objects that orbit the sun beyond Neptune, are fossils from the early days of the solar system which can tell us a lot about its formation and evolution.

A new study led by Mohamad Ali-Dib, a research scientist at the NYU Abu Dhabi Center for Astro, Particle, and Planetary Physics, reports the significant discovery that two groups of TNOs with different surface colors also have very different orbital patterns. This new information can be compared to models of the solar system to provide fresh insights into its early chemistry. Additionally, this discovery paves the way for further understanding of the formation of the Kuiper Belt itself, an area beyond Neptune comprised of icy objects, that is also the source of some comets.

Jul 11, 2021

Recycling Lost Energy: Quantum Laser Turns Energy Loss Into Gain?

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

A new laser that generates quantum particles can recycle lost energy for highly efficient, low threshold laser applications.

Scientists at KAIST have fabricated a laser system that generates highly interactive quantum particles at room temperature. Their findings, published in the journal Nature Photonics, could lead to a single microcavity laser system that requires lower threshold energy as its energy loss increases.

The system, developed by KAIST physicist Yong-Hoon Cho and colleagues, involves shining light through a single hexagonal-shaped microcavity treated with a loss-modulated silicon nitride substrate. The system design leads to the generation of a polariton laser at room temperature, which is exciting because this usually requires cryogenic temperatures.

Jul 11, 2021

Muon g-2 Experiment Results – Profound Implications for the History of the Universe

Posted by in categories: particle physics, space

Experiment opens up field for new physics, say Fermilab, UChicago scientists.

The news that muons have a little extra wiggle in their step sent word buzzing around the world this spring.

Continue reading “Muon g-2 Experiment Results – Profound Implications for the History of the Universe” »

Jul 11, 2021

Giant Quantum Tornados in Hybrid Light-Matter System Reveal Complex Physical Phenomena

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

Researchers from Skoltech and their colleagues from the UK have managed to create a stable giant vortex in interacting polariton condensates, addressing a known challenge in quantized fluid dynamics. The findings open possibilities in creating uniquely structured coherent light sources and exploring many-body physics under unique extreme conditions. The paper was published in the journal Nature Communications.

In fluid dynamics, a vortex is a region where a fluid revolves around a point (2D) or a line (3D); you’ve clearly seen one in your sink or may have felt one in the form of turbulence while flying. The quantum world also has vortices: the flow of a quantum fluid can create a zone where the particles revolve persistently around some point. The prototypical signature of such quantum vortices is their singular phase at the core of the vortex.

Skoltech Professors Natalia Berloff and Pavlos Lagoudakis and colleagues studied vortices created by polaritons – odd hybrid quantum particles that are half-light (photon) and half-matter (electrons) – forming a quantum fluid under the right conditions. They were looking for a way to create vortices in these polariton fluids with high values of angular momentum (i.e., getting them to rotate fast). These vortices, also known as giant vortices, are generally very hard to obtain as they tend to break apart into many smaller vortices with low angular momentum in other systems.

Jul 10, 2021

Subatomic Particle Seen Changing to Antiparticle and Back for the First Time in Extraordinary Experiment

Posted by in category: particle physics

A team of physicists, including the University of Warwick, have proved that a subatomic particle can switch into its antiparticle alter-ego and back again, in a new discovery just revealed last week.

“This new result shows for the first time that charm mesons can oscillate between the two states.”

An extraordinarily precise measurement made by UK researchers using the LHCb experiment at CERN has provided the first evidence that charm mesons can change into their antiparticle and back again.

Jul 10, 2021

Radiation from high-speed particles

Posted by in category: particle physics

Circa 1960 o,.o!!!


Show details.

Jul 9, 2021

Harvard-MIT Quantum Computing Breakthrough – “We Are Entering a Completely New Part of the Quantum World”

Posted by in categories: finance, particle physics, quantum physics, supercomputing

Team develops simulator with 256 qubits, largest of its kind ever created.

A team of physicists from the Harvard-MIT Center for Ultracold Atoms and other universities has developed a special type of quantum computer known as a programmable quantum simulator capable of operating with 256 quantum bits, or “qubits.”

The system marks a major step toward building large-scale quantum machines that could be used to shed light on a host of complex quantum processes and eventually help bring about real-world breakthroughs in material science, communication technologies, finance, and many other fields, overcoming research hurdles that are beyond the capabilities of even the fastest supercomputers today. Qubits are the fundamental building blocks on which quantum computers run and the source of their massive processing power.

Jul 9, 2021

Scientists Solve 40-Year Mystery Over Jupiter’s Spectacularly Powerful X-ray Aurora

Posted by in categories: particle physics, space

A research team has solved a decades-old mystery as to how Jupiter produces a spectacular burst of X-rays every few minutes.

A research team co-led by UCL (University College London) has solved a decades-old mystery as to how Jupiter produces a spectacular burst of X-rays every few minutes.

The X-rays are part of Jupiter’s aurora — bursts of visible and invisible light that occur when charged particles interact with the planet’s atmosphere. A similar phenomenon occurs on Earth, creating the northern lights, but Jupiter’s is much more powerful, releasing hundreds of gigawatts of energy, enough to briefly power all of human civilization.*.

Jul 9, 2021

Evidence for a particle that is its own antiparticle

Posted by in category: particle physics

Circa 2017 angel particle still found.


New evidence by Stanford and University of California researchers supports a 1937 theory that some particles can be their own antiparticles.

Jul 9, 2021

Quantum laser turns energy loss into gain

Posted by in categories: particle physics, quantum physics

Scientists at KAIST have fabricated a laser system that generates highly interactive quantum particles at room temperature. Their findings, published in the journal Nature Photonics, could lead to a single microcavity laser system that requires lower threshold energy as its energy loss increases.

The system, developed by KAIST physicist Yong-Hoon Cho and colleagues, involves shining through a single hexagonal-shaped microcavity treated with a loss-modulated silicon nitride substrate. The system design leads to the generation of a polariton at , which is exciting because this usually requires cryogenic temperatures.

The researchers found another unique and counter-intuitive feature of this design. Normally, energy is lost during laser operation. But in this system, as energy loss increased, the amount of energy needed to induce lasing decreased. Exploiting this phenomenon could lead to the development of high efficiency, low threshold lasers for future quantum optical devices.