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Archive for the ‘quantum physics’ category: Page 613

Jun 9, 2019

The “Quantum Glass” Battery Hype

Posted by in categories: finance, quantum physics, sustainability, transportation

There is a new battery type being hyped, with terms such as “Quantum Glass” battery or even “The Jesus Battery” and a claim that “It Will Ignite the Global $3 Trillion Electric Car Revolution.” Go and see it for yourself at investorplace.com (video transcript available from me), Forbes, and other financial information services.

This touted breakthrough in battery technology is the latest in a slew of innovative ideas that include “batteries made with sand,” “stretchable batteries,” “foam batteries,” “pee powered batteries,” “laser-made micro-super-capacitors” and more (13 Amazing Battery Innovations That Could Change The World).

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Jun 8, 2019

Quantum Biology May Help Solve Some of Life’s Greatest Mysteries

Posted by in categories: biological, neuroscience, quantum physics

From the remarkable speed of enzyme-catalyzed reactions to the workings of the human brain, numerous biological puzzles are now being explored for evidence of quantum effects.

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Jun 7, 2019

A quantum simulation of Unruh radiation

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

Researchers at the University of Chicago (UChicago) have recently reported an experimental observation of a matter field with thermal fluctuations that is in accordance with Unruh’s radiation predictions. Their paper, published in Nature Physics, could open up new possibilities for research exploring the dynamics of quantum systems in a curved spacetime.

“Our team at UChicago has been investigating a new quantum phenomena called Bose fireworks that we discovered two years ago,” Cheng Chin, one of the researchers who carried out the study, told Phys.org. “Our paper reports its hidden connection to a gravitational phenomenon called Unruh radiation.”

The Unruh effect, or Unruh radiation, is closely connected to Hawking radiation. In 1974, theoretical physicist Stephen Hawking predicted that the strong gravitational force near black holes leads to the emission of a thermal radiation of particles, which resembles the emitted by an oven. This phenomenon remains speculative with no direct experimental confirmation.

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Jun 7, 2019

Quantum chemistry on quantum computers

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

The special properties of quantum computers should make them ideal for accurately modelling chemical systems, Philip Ball discovers.

‘If you want to make a simulation of nature,’ the legendary physicist Richard Feynman advised in 1981, ‘you’d better make it quantum-mechanical.’ By ‘nature’, Feynman meant ‘stuff’: the particles and atoms and molecules we’re made from. His comment came in a talk published the following year, and is generally regarded as the founding text of quantum computing. It now looks even more prophetic than ever.

For although we are constantly told that the unique selling point of quantum computers is their enormous speed compared with the classical devices we currently use – a speed-up that exploits the counterintuitive laws of quantum mechanics – it seems that the most immediate benefit will be the one Feynman identified in the first place: we’ll be able to simulate nature better.

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Jun 7, 2019

How to build a teleportation machine: Teleportation protocol

Posted by in categories: quantum physics, time travel

I was hoping to post this earlier, but a heavy dose of writer’s block set in (I met a girl, and no, this blog didn’t help — but she is a physicist!) I also got lost in the rabbit hole that is quantum teleportation. My initial intention with this series of posts was simply to clarify common misconceptions and to introduce basic concepts in quantum information. However, while doing so, I started a whirlwind tour of deep questions in physics which become unavoidable as you think harder and deeper about quantum teleportation. I’ve only just begun this journey, but using quantum teleportation as a springboard has already led me to contemplate crazy things such as time-travel via coupling postselection with quantum teleportation and the subtleties of entanglement. In other words, quantum teleportation may not be the instantaneous Stargate style teleportation you had in mind, but it’s incredibly powerful in its own right. Personally, I think we’ve barely begun to understand the full extent of its ramifications.

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Jun 7, 2019

To catch and reverse a quantum jump mid-flight

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

In quantum physics, measurements can fundamentally yield discrete and random results. Emblematic of this feature is Bohr’s 1913 proposal of quantum jumps between two discrete energy levels of an atom. Experimentally, quantum jumps were first observed in an atomic ion driven by a weak deterministic force while under strong continuous energy measurement2,3,4. The times at which the discontinuous jump transitions occur are reputed to be fundamentally unpredictable. Despite the non-deterministic character of quantum physics, is it possible to know if a quantum jump is about to occur? Here we answer this question affirmatively: we experimentally demonstrate that the jump from the ground state to an excited state of a superconducting artificial three-level atom can be tracked as it follows a predictable ‘flight’, by monitoring the population of an auxiliary energy level coupled to the ground state. The experimental results demonstrate that the evolution of each completed jump is continuous, coherent and deterministic. We exploit these features, using real-time monitoring and feedback, to catch and reverse quantum jumps mid-flight—thus deterministically preventing their completion. Our findings, which agree with theoretical predictions essentially without adjustable parameters, support the modern quantum trajectory theory5,6,7,8,9 and should provide new ground for the exploration of real-time intervention techniques in the control of quantum systems, such as the early detection of error syndromes in quantum error correction.

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Jun 7, 2019

AI Course with Sebastian Thrun and Peter Norvig: Udacity Course

Posted by in categories: biotech/medical, education, finance, quantum physics, robotics/AI

Artificial Intelligence (AI) is a field that has a long history but is still constantly and actively growing and changing. Artificial Intelligence (AI) technology is increasingly prevalent in our everyday lives. It has uses in a variety of industries from gaming, journalism/media, to finance, as well as in the state-of-the-art research fields from robotics, medical diagnosis, and quantum science.


Udacity was born out of a Stanford University experiment in which Sebastian Thrun and Peter Norvig offered their “Introduction to Artificial Intelligence” course online to anyone, for free. Over 160,000 students in more than 190 countries enrolled and not much later, Udacity was born.

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Jun 6, 2019

Spacetime Geometry near Rotating Black Holes Acts Like Quantum Computer, Physicist Says

Posted by in categories: computing, cosmology, quantum physics

According to a theoretical paper published in the Annals of Physics, by Dr. Ovidiu Racorean from the General Direction of Information Technology in Bucharest, Romania, the geometry of spacetime around a rapidly spinning black hole (Kerr black hole) behaves like a quantum computer, and it can encode photons with quantum messages.

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Jun 6, 2019

Single-spin system breaks quantum symmetry

Posted by in category: quantum physics

“Dilation” technique could allow researchers to study exotic physics in non-classical Hamiltonians.

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Jun 6, 2019

How Peter Shor’s Algorithm is Destined to Put an End to Modern Encryption

Posted by in categories: computing, encryption, information science, internet, quantum physics

RSA Encryption is an essential safeguard for our online communications. It was also destined to fail even before the Internet made RSA necessary, thanks the work of Peter Shor, whose algorithm in 1994 proved quantum computers could actually be used to solve problems classical computers could not.

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