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Dec 23, 2024

Grapes of math: Ordinary fruit enhances performance of quantum sensors

Posted by in categories: mathematics, quantum physics

Macquarie University researchers have demonstrated how ordinary supermarket grapes can enhance the performance of quantum sensors, potentially leading to more efficient quantum technologies.

The study, published in Physical Review Applied on 20 December 2024, shows that pairs of grapes can create strong localized magnetic field hotspots of microwaves which are used in quantum sensing applications—a finding that could help develop more compact and cost-effective quantum devices.

“While previous studies looked at the causing the plasma effect, we showed that grape pairs can also enhance magnetic fields, which are crucial for quantum sensing applications,” says lead author Ali Fawaz, a quantum physics Ph.D. candidate at Macquarie University.

Dec 23, 2024

Einstein Meets Newton: Scientists Demonstrate New Aspect of Wave-Particle Duality

Posted by in categories: computing, encryption, quantum physics

Linköping University’s experiment confirms a key theoretical link between quantum mechanics and information theory, highlighting future implications for quantum technology and secure communication.

Researchers at Linköping University and their collaborators have successfully confirmed a decade-old theory linking the complementarity principle—a fundamental concept in quantum mechanics—with information theory. Their study, published in the journal Science Advances, provides valuable insights for understanding future quantum communication, metrology, and cryptography.

“Our results have no clear or direct application right now. It’s basic research that lays the foundation for future technologies in quantum information and quantum computers. There’s enormous potential for completely new discoveries in many different research fields,” says Guilherme B Xavier, researcher in quantum communication at Linköping University, Sweden.

Dec 23, 2024

RAMBO Reveals Magnetic Phenomenon Useful for Quantum Simulation and Sensing

Posted by in categories: particle physics, quantum physics

Sometimes things are a little out of whack, and it turns out to be exactly what you need.

That was the case when orthoferrite crystals turned up at a Rice University laboratory slightly misaligned. Those crystals inadvertently became the basis of a discovery that should resonate with researchers studying spintronics-based quantum technology.

Rice physicist Junichiro Kono, alumnus Takuma Makihara and their collaborators found an orthoferrite material, in this case yttrium iron oxide, placed in a high magnetic field showed uniquely tunable, ultrastrong interactions between magnons in the crystal.

Dec 23, 2024

Quantum research sheds new light on how cells communicate

Posted by in category: quantum physics

Have you ever thought that light might hold a key to life’s mysteries? One hundred years ago, Alexander Gurwitsch dared to propose that living cells emit faint ultraviolet light, invisible to the naked eye, to communicate with and stimulate one another.

It was an idea so ahead of its time that many dismissed it outright. Without a physical theory to back it up, his idea was relegated to the chronicles of history. Yet when I encountered his work, I couldn’t help but ask the question: What if the UV effect is quantum mechanical? Armed with modern quantum theory, I began to uncover a new quantum dimension to life itself.

Dec 23, 2024

Engineers achieve quantum teleportation over active internet cables

Posted by in categories: computing, internet, particle physics, quantum physics

Engineers at Northwestern University have demonstrated quantum teleportation over a fiber optic cable already carrying Internet traffic. This feat, published in the journal Optica, opens up new possibilities for combining quantum communication with existing Internet infrastructure. It also has major implications for the field of advanced sensing technologies and quantum computing applications.

Quantum teleportation, a process that harnesses the power of quantum entanglement, enables an ultra-fast and secure method of information sharing between distant network users. Unlike traditional communication methods, quantum teleportation does not require the physical transmission of particles. Instead, it relies on entangled particles exchanging information over great distances.

Nobody thought it would be possible to achieve this, according to Professor Prem Kumar, who led the study. “Our work shows a path towards next-generation quantum and classical networks sharing a unified fiber optic infrastructure. Basically, it opens the door to pushing quantum communications to the next level.”

Dec 23, 2024

Almost three quarters of adolescents experience depression or anxiety

Posted by in categories: neuroscience, quantum physics

MIT physicists and colleagues have for the first time measured the geometry, or shape, of electrons in solids at the quantum level. Scientists have long known how to measure the energies and velocities of electrons in crystalline materials, but until now, those systems’ quantum geometry could only be inferred theoretically, or sometimes not at all.

The work, reported in the November 25 issue of Nature Physics, “opens new avenues for understanding and manipulating the quantum properties of materials,” says Riccardo Comin, MIT’s Class of 1947 Career Development Associate Professor of Physics and leader of the work.

“We’ve essentially developed a blueprint for obtaining some completely new information that couldn’t be obtained before,” says Comin, who is also affiliated with MIT’s Materials Research Laboratory and the Research Laboratory of Electronics.

Dec 23, 2024

Black holes may not exist as we know them, but fuzzballs might

Posted by in categories: cosmology, particle physics, quantum physics, singularity

String theory proposes that all particles and forces are made of tiny, vibrating strings, which form the fundamental building blocks of the universe. This framework offers a potential solution to the long-standing paradoxes surrounding black holes, such as their singularities—infinitely tiny points where the laws of physics break down—and the Hawking radiation paradox, which questions the fate of information falling into black holes.

Fuzzballs replace the singularity with an ultra-compressed sphere of strings, likened to a neutron star’s structure but composed of subatomic strings instead of particles. While the theory remains incomplete, its implications are significant, offering an alternative explanation for phenomena previously attributed to black holes.

To differentiate between black holes and fuzzballs, researchers are turning to gravitational waves—ripples in spacetime caused by cosmic collisions. When black holes merge, they emit specific gravitational wave signatures that have so far aligned perfectly with Einstein’s general relativity. However, fuzzballs might produce subtle deviations from these patterns, providing a way to confirm their existence.

Dec 22, 2024

Quantum Mechanical Mass mechanism ~ Why Mass increases

Posted by in categories: energy, quantum physics

It is important to have a mechanism that forms Mass, because if we had a concept of how Mass is formed it would give us a deeper understanding of gravity and help us unity Relativity and Quantum Mechanics.

In this theory Mass increases with speed, because Photon ∆E=hf energy is continuously transforming potential energy into the kinetic energy of matter in the form of electrons.

Continue reading “Quantum Mechanical Mass mechanism ~ Why Mass increases” »

Dec 22, 2024

The theory of quantum politics

Posted by in categories: quantum physics, space

As the multi-polar world of global politics becomes ever more complex, who better to cast light on its workings than a physicist turned President? Join Armen Sarkissian, former President of Armenia, as he argues for his new theory of quantum politics, in which individuals are necessarily connected across space and our world is dominated by randomness, uncertainty, and possibility.

Dec 22, 2024

Engineers enable quantum communication over existing fiber optic cables — new research shows data transmission using quantum teleportation is possible in parallel with a classical network at specific wavelengths

Posted by in category: quantum physics

And it does not violate the laws of physics.

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