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Archive for the ‘quantum physics’ category: Page 2

Jul 16, 2024

Strange Motion of Neutrons Proves Nature Is Fundamentally Bizarre

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

At the very smallest scales, our intuitive view of reality no longer applies. It’s almost as if physics is fundamentally indecisive, a truth that gets harder to ignore as we zoom in on the particles that pixelate our Univerrse.

In order to better understand it, physicists had to devise an entirely new framework to place it in, one based on probability over certainty. This is quantum theory, and it describes all sorts of phenomena, from entanglement to superposition.

Yet in spite of a century of experiments showing just how useful quantum theory is at explaining what we see, it’s hard to shake our ‘classical’ view of the Universe’s building blocks as reliable fixtures in time and space. Even Einstein was forced to ask his fellow physicist, “Do you really believe the Moon is not there when you are not looking at it?”

Jul 16, 2024

Illinois lands federal partnership to further develop quantum projects

Posted by in categories: computing, quantum physics

Gov. J.B. Pritzker on Tuesday plans to announce a major partnership with the U.S. Department of Defense’s research and development agency to further expand quantum research in Illinois.

The Defense Advanced Research Projects Agency, or DARPA, will take residency on the state’s quantum campus to establish a program where quantum computing prototypes will be tested. The location of the campus is expected to be announced soon.

According to DARPA, the goal of the “Quantum Benchmarking Initaitive,” or QBI, will be to evaluate and test quantum computing claims and “separate hype from reality.”

Jul 16, 2024

Breakthrough in quantum microscopy: Researchers are making electrons visible in slow motion

Posted by in categories: materials, quantum physics

Physicists at the University of Stuttgart under the leadership of Prof. Sebastian Loth are developing quantum microscopy which enables them for the first time to record the movement of electrons at the atomic level with both extremely high spatial and temporal resolution. Their method has the potential to enable scientists to develop materials in a much more targeted way than before.

The researchers have published their findings in the journal Nature Physics (“Terahertz spectroscopy of collective charge density wave dynamics at the atomic scale”).

“With the method we developed, we can make things visible that no one has seen before,” says Prof. Sebastian Loth, Managing Director of the Institute for Functional Matter and Quantum Technologies (FMQ) at the University of Stuttgart. “This makes it possible to settle questions about the movement of electrons in solids that have been unanswered since the 1980s.” However, the findings of Loth’s group are also of very practical significance for the development of new materials.

Jul 15, 2024

New techniques enhance brightness and control of quantum defects in nanodiamonds

Posted by in categories: nanotechnology, quantum physics

Researchers develop methods to dramatically increase light emission from nitrogen-vacancy centers in nanodiamonds, advancing quantum sensing and bioimaging applications.

Jul 15, 2024

How a Twist in Physics Could Change Technology Forever

Posted by in categories: particle physics, quantum physics

Physicists at the University of Konstanz have discovered a way to imprint a previously unseen geometrical form of chirality onto electrons using laser light, creating chiral coils of mass and charge.

This breakthrough in manipulating electron chirality has vast implications for quantum optics, particle physics, and electron microscopy, paving the way for new scientific explorations and technological innovations.

Understanding Chirality and Its Implications.

Jul 15, 2024

Faster Than Light: New Dark Matter Findings Challenge Classical Physics

Posted by in categories: cosmology, particle physics, quantum physics, space travel

Dive into the world of tachyons, the elusive particles that might travel faster than light and hold the key to understanding dark matter and the universe’s expansion. Join us as we explore groundbreaking research that challenges our deepest physics laws and hints at a universe far stranger than we ever imagined. Don’t miss out on this thrilling cosmic journey!

Chapters:
00:00 Introduction.
00:39 Racing Beyond Light.
03:26 The Tachyon Universe Model.
05:57 Beyond Cosmology: Tachyons’ Broader Impact.
08:31 Outro.
08:44 Enjoy.

Continue reading “Faster Than Light: New Dark Matter Findings Challenge Classical Physics” »

Jul 14, 2024

Quantum Revelations: Unveiling New Layers of the Higgs Boson

Posted by in categories: particle physics, quantum physics

New research confirms the Standard Model’s predictions about the Higgs boson while suggesting future data may reveal unknown aspects of particle physics.

The Higgs boson was discovered in the detectors of the Large Hadron Collider a dozen or so years ago. It has proved to be a particle so difficult to produce and observe that, despite the passage of time, its properties are still not known with satisfactory accuracy. Now we know a little more about its origin, thanks to the just-published achievement of an international group of theoretical physicists with the participation of the Institute of Nuclear Physics of the Polish Academy of Sciences.

Higgs Boson Discovery

Jul 14, 2024

Pioneering Study Reveals 3D Quantum Hall Effects in Weyl Acoustic Crystals

Posted by in category: quantum physics

A new study has demonstrated the three-dimensional quantum Hall effect in acoustic waves using a Weyl acoustic crystal, marking the first observation of one-dimensional edge states and opening avenues for advanced acoustic device development.

The quantum Hall effect (QHE) stands as a landmark discovery in condensed matter physics, paving the way for the exploration of topological physics. Advancing QHE into three dimensions presents an exciting yet formidable challenge. The complication stems from the fact that, in three dimensions, Landau levels evolve into bands along the magnetic field direction, which obstructs the formation of bulk gaps.

Recently, a feasible scheme has been proposed in Weyl semimetals, whose Fermi arc states on opposite surfaces are connected through the bulk Weyl points to form a complete Fermi loop, and under the magnetic field, one-dimensional edge states are induced on the boundary of the opposite surface. However, the unique edge states have yet to be experimentally observed.

Jul 14, 2024

Scientists Report Future Quantum Sensors May Be Able to ‘Travel Back in Time’

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

In a study published recently in Physical Review Letters, researchers unveiled a new type of quantum sensor that they report leverages quantum entanglement to perform detections that, note the quote marks, “travel back in time”. The researchers add the findings could — one day — lead to novel quantum sensors that are ideally suited for astronomical detection and magnetic field investigations.

The study, led by Kater Murch, Charles M. Hohenberg Professor of Physics and Director of the Center for Quantum Leaps at Washington University in St. Louis, introduces a sensor that can probe past events in complex systems. The team, which also included scientists from the National Institute of Standards and Technology (NIST) and the University of Cambridge, described the innovation in the press release as a bit like “sending a telescope back in time to capture a shooting star that you saw out of the corner of your eye.”

The sensor operates by entangling two quantum particles in a quantum singlet state, where their spins point in opposite directions. The process begins with one particle, the “probe,” being subjected to a magnetic field that causes it to rotate. The key breakthrough comes when the second particle, the “ancilla,” is measured. This measurement effectively sends its quantum state back in time to the probe, allowing researchers to optimally set the spin direction of the probe qubit in what Murch refers to as hindsight.

Jul 13, 2024

Quantum Systems Deploys “Receptor AI” Multi-sensor Technology in Ukraine

Posted by in categories: drones, government, military, quantum physics, robotics/AI

Quantum Systems, the Munich-based manufacturer of dual-use reconnaissance drones that use multi-sensor technology to collect data for government agencies and commercial users, confirms for the first time the deployment of a previously unreleased AI sensor upgrade of the type “Receptor AI” in Ukraine. The new upgrade kit is based on a Jetson Orin Nvidia chip and several sensors for the Vector reconnaissance drone. The further development enables optical navigation during the day and at night and in poor visibility conditions, as well as automated AI-supported object recognition and identification. In times of electronic warfare, navigation is the biggest challenge for the use of drones.

“We are implementing the upgrade without any weight changes and with the same range. We are designing these adaptations without fundamental changes to the existing platform architecture,” says Daniel Kneifel, Director of Software Engineering at Quantum Systems.

“We are demonstrating that AI does not have to be an abstract topic, but offers tangible benefits in use. For Quantum Systems, the combination of hardware and software is crucial to being able to offer market-leading solutions in the field of aerial intelligence,” says Sven Kruck, CRO and Managing Director, Quantum Systems.

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