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Archive for the ‘quantum physics’ category: Page 261

Jan 8, 2022

Hawking radiation mimicked in the lab

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

Circa 2014


Scientists have come closer than ever before to creating a laboratory-scale imitation of a black hole that emits Hawking radiation, the particles predicted to escape black holes due to quantum mechanical effects.

The black hole analogue, reported in Nature Physics1, was created by trapping sound waves using an ultra cold fluid. Such objects could one day help resolve the so-called black hole ‘information paradox’ — the question of whether information that falls into a black hole disappears forever.

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Jan 8, 2022

A better black hole laser may prove a circuitous ‘Theory of Everything’

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

😮 circa 2021.


The fundamental forces of physics govern the matter comprising the Universe, yet exactly how these forces work together is still not fully understood. The existence of Hawking radiation — the particle emission from near black holes — indicates that general relativity and quantum mechanics must cooperate. But directly observing Hawking radiation from a black hole is nearly impossible due to the background noise of the Universe, so how can researchers study it to better understand how the forces interact and how they integrate into a “Theory of Everything”?

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Jan 8, 2022

“Quantum tornadoes” mark crossover from classical to quantum physics

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

The universe is governed by two sets of seemingly incompatible laws of physics – there’s the classical physics we’re used to on our scale, and the spooky world of quantum physics on the atomic scale. MIT physicists have now observed the moment atoms switch from one to the other, as they form intriguing “quantum tornadoes.”

Things that seem impossible to our everyday understanding of the world are perfectly possible in quantum physics. Particles can essentially exist in multiple places at once, for instance, or tunnel through barriers, or share information across vast distances instantly.

These and other odd phenomena can arise as particles interact with each other, but frustratingly the overarching world of classical physics can interfere and make it hard to study these fragile interactions. One way to amplify quantum effects is to cool atoms right down to a fraction above absolute zero, creating a state of matter called a Bose-Einstein condensate (BEC) that can exhibit quantum properties on a larger, visible scale.

Jan 7, 2022

The Fundamental Patterns that Explain the Universe — with Brian Clegg

Posted by in categories: business, mathematics, military, quantum physics, time travel

From the cosmic microwave background to Feynman diagrams — what are the underlying rules that work to create patterns of action, force and consequence that make up our universe?
Brian’s new book “Ten Patterns That Explain the Universe” is available now: https://geni.us/clegg.
Watch the Q&A: https://youtu.be/RZB95znAGRE

Brian Clegg will explore the phenomena that make up the very fabric of our world by examining ten essential sequenced systems. From diagrams that show the deep relationships between space and time to the quantum behaviours that rule the way that matter and light interact, Brian will show how these patterns provide a unique view of the physical world and its fundamental workings.

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Jan 7, 2022

The Omega Singularity: A Missing Piece in Quantum Cosmology

Posted by in categories: computing, cosmology, neuroscience, quantum physics, singularity, transhumanism

COUNTDOWN TO RELEASE: Here comes the next and final installment in The Cybernetic Theory of Mind series ― The Omega Singularity: Universal Mind & The Fractal Multiverse ― which is now available to pre-order as a Kindle eBook on Amazon. In this final book of the series, we discuss a number of perspectives on quantum cosmology, computational physics, theosophy and eschatology. How could dimensionality be transcended yet again? What is the fractal multiverse? What is the ultimate destiny of our universe? Why does it matter to us? What is the Omega Singularity? These are some of the questions addressed in this concluding volume of my eBook series.

#OmegaSingularity #UniversalMind #FractalMultiverse #CyberneticTheoryofMind #EvolutionaryCybernetics #PhilosophyofMind #QuantumCosmology #ComputationalPhysics #futurism #posthumanism #cybernetics #cosmology #physics #philosophy #theosophy #consciousness #ontology #eschatology

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Jan 6, 2022

Evading the uncertainty principle in quantum physics

Posted by in categories: particle physics, quantum physics

The uncertainty principle, first introduced by Werner Heisenberg in the late 1920’s, is a fundamental concept of quantum mechanics. In the quantum world, particles like the electrons that power all electrical product can also behave like waves. As a result, particles cannot have a well-defined position and momentum simultaneously. For instance, measuring the momentum of a particle leads to a disturbance of position, and therefore the position cannot be precisely defined.

Jan 6, 2022

Making quantum computers even more powerful

Posted by in categories: chemistry, computing, encryption, quantum physics

Three resonators operating at different frequencies read a 3×3 matrix of quantum dots. © 2022 EPFL

Biochemistry and cryptography.

Jan 6, 2022

IBM Has Created The Largest Ever Superconducting Quantum Computer

Posted by in categories: computing, quantum physics

IBM has created the world’s largest superconducting quantum computer as of 2021.

The tech company developed a 127-qubit quantum computer. This is over double the size of comparable machines made by Google in 2019 and the University of Science and Technology of China in 2020.

IBM claims it has created the world’s largest superconducting quantum computer, surpassing the size of state-of-the-art machines from Google and from researchers at a Chinese university. Previous devices have demonstrated up to 60 superconducting qubits, or quantum bits, working together to solve problems, but IBM’s new Eagle processor more than doubles that by stringing together 127.

Jan 5, 2022

Experimental quantum teleportation of propagating microwaves

Posted by in categories: quantum physics, security

The field of experimental quantum communication promises ways of efficient and unconditional secure information exchange in quantum states. The possibility of transferring quantum information forms a cornerstone of the emerging field of quantum communication and quantum computation. Recent breakthroughs in quantum computation with superconducting circuits trigger a demand for quantum communication channels between superconducting processors separated in space at microwave length frequencies. To pursue this goal, Kirill G. Fedorov, and a team of scientists in Germany, Finland and Japan demonstrated unconditional quantum teleportation to propagate coherent microwave states by exploring two-mode squeezing and analog feedforward across a distance of 0.42 m. The researchers achieved a teleportation fidelity of F= 0.689±0.004, which exceeded the asymptotic no-cloning threshold, preventing the use of classical error correction methods on quantum states. The quantum state of the teleported state was preserved to open the avenue towards unconditional security in microwave quantum communication.

Quantum teleportation (QT).

The promise of quantum communication is based on the delivery of efficient and unconditionally secure ways to exchange information by exploring the quantum laws of physics. Quantum teleportation (QT) is an exemplary protocol that stands out to allow the disembodied and safe transfer of unknown quantum states using quantum entanglement and classical communication as resources. Recent progress in quantum computation with superconducting circuits has led to quantum communication between spatially separated superconducting processes functioning at microwave length frequencies. Methods to achieve this communication task includes the propagation of two-mode squeezed (TMS) microwaves to entangle remote qubits and teleport microwave states to interface between remote superconducting systems. Fedorov et al. demonstrated the deterministic QT of coherent microwave states by exploring two-mode squeezing and analog feedforward across a distance of 0.

Jan 3, 2022

Creating the Heart of a Quantum Computer: Developing Qubits

Posted by in categories: biotech/medical, computing, quantum physics

A computer is suspended from the ceiling. Delicate lines and loops of silvery wires and tubes connect gold-colored platforms. It seems to belong in a science-fiction movie, perhaps a steam-punk cousin of HAL in 2001: A Space Odyssey. But as the makers of that 1968 movie imagined computers the size of a spaceship, this technology would have never crossed their minds – a quantum computer.

Quantum computers have the potential to solve problems that conventional computers can’t. Conventional computer chips can only process so much information at one time and we’re coming very close to reaching their physical limits. In contrast, the unique properties of materials for quantum computing have the potential to process more information much faster.

These advances could revolutionize certain areas of scientific research. Identifying materials with specific characteristics, understanding photosynthesis, and discovering new medicines all require massive amounts of calculations. In theory, quantum computing could solve these problems faster and more efficiently. Quantum computing could also open up possibilities we never even considered. It’s like a microwave oven versus a conventional oven – different technologies with different purposes.