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Archive for the ‘quantum physics’ category: Page 818

Jun 23, 2015

Is Photon Based Propulsion, the Future?

Posted by in categories: anti-gravity, defense, general relativity, gravity, innovation, particle physics, physics, quantum physics, science, space travel

I first met Dr. Young Bae, NIAC Fellow, at the Defense Advanced Research Projects Agency (DARPA) sponsored 2011, 100 Year Starship Study (100YSS) at Orlando, Fla. Many of us who were there had responded to the NASA/DARPA Tactical Technology Office’s RFP to set up an organization “… to develop a viable and sustainable non-governmental organization for persistent, long-term, private-sector investment into the myriad of disciplines needed to make long-distance space travel viable …”

Yes, both DARPA and NASA are at some level interested in interstellar propulsion. Mine was one of approximately 35 (rumored number) teams from around the world vying for this DARPA grant, and Dr. Bae was with a competing team. I presented the paper “Non-Gaussian Photon Probability Distributions”, and Dr. Bae presented “A Sustainable Developmental Pathway of Photon Propulsion towards Interstellar Flight”. These were early days, the ground zero of interstellar propulsion, if you would.

Dr. Bae has been researching Photon Laser Thrust (PLT) for many years. A video of his latest experiment is available at the NASA website or on YouTube. This PLT uses light photons to move an object by colliding with (i.e. transferring momentum to) the object. The expectation is that this technology will eventually be used to propel space crafts. His most recent experiments demonstrate the horizontal movement of a 1-pound weight. This is impressive. I expect to see much more progress in the coming years.

At one level, Dr. Bae’s experiments are confirmation that Bill Nye’s Light Sail (which very unfortunately lost communications with Earth) will work.

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Jun 23, 2015

The Feasibility of Interstellar Propulsion

Posted by in categories: cosmology, defense, disruptive technology, general relativity, gravity, innovation, particle physics, philosophy, physics, policy, quantum physics, space travel

Recent revelations of NASA’s Eagleworks Em Drive caused a sensation on the internet as to why interstellar propulsion can or cannot be possible. The nay sayers pointed to shoddy engineering and impossible physics, and ayes pointed to the physics of the Alcubierre-type warp drives based on General Relativity.

So what is it? Are warp drives feasible? The answer is both yes and no. Allow me to explain.

The empirical evidence of the Michelson-Morley experiment of 1887, now known as the Lorentz-FitzGerald Transformations (LFT), proposed by FitzGerald in 1889, and Lorentz in 1892, show beyond a shadow of doubt that nothing can have a motion with a velocity greater than the velocity of light. In 1905 Einstein derived LFT from first principles as the basis for the Special Theory of Relativity (STR).

So if nothing can travel faster than light why does the Alcubierre-type warp drive matter? The late Prof. Morris Klein explained in his book, Mathematics: The Loss of Certainty, that mathematics has become so powerful that it can now be used to prove anything, and therefore, the loss of certainty in the value of these mathematical models. The antidote for this is to stay close to the empirical evidence.

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Jun 3, 2015

Quantum Entanglement: EPR Paradox

Posted by in categories: encryption, general relativity, physics, quantum physics, science

When I was a freshman at Cornell University some decades ago, I had a memorable teaching assistant for CS100, the entry level computer programming course taken by nearly every student in Engineering or Arts & Sciences. Gilles Brassard, a French Canadian, is now a chaired math professor at Université de Montréal and a preeminent cryptographer. He has also been inducted into the Royal Order of Canada. I am told that this is a bit like being knighted. In fact, this highest of civilian honors was established by Queen Elizabeth.

The author with Gilles Brassard in 2014

The author with Gilles Brassard in 2014

Gilles was a graduate student at Cornell in the mid ’70s. Back then, public key encryption was a radical concept. Named for three MIT professors who described it, RSA is now it is at the heart of every secure Internet transaction. Yet, the new generation of cryptographers refers to RSA as “classical cryptography”. The radicals have moved on to Quantum Cryptography. Gilles and his collaborator, Charles Bennett, are the pioneers and leaders in this burgeoning field. No one else is even pretender to the throne.

In its simplest terms, quantum cryptography achieves a secure communication channel because it relies on a stream of individual particles or “quanta” to convey information. If information is sent without any fat at all—just the minimum physics that can support the entropy—then any eavesdropping or rerouting of a message can be detected by the recipient. Voila! Perfect authentication, fidelity and security. Communication is secure because any attack can be detected.

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May 30, 2015

Quantum Computing Is About to Overturn Cybersecurity’s Balance of Power — By Vivek Wadhwa SingularityHub

Posted by in categories: computing, quantum physics

http://cdn.singularityhub.com/wp-content/uploads/2015/05/quantum-computing-cyber-security-41-1000x400.jpg

“Spooky action at a distance” is how Albert Einstein described one of the key principles of quantum mechanics: entanglement. Entanglement occurs when two particles become related such that they can coordinate their properties instantly even across a galaxy. Think of wormholes in space or Star Trek transporters that beam atoms to distant locations. Quantum mechanics posits other spooky things too: particles with a mysterious property called superposition, which allows them to have a value of one and zero at the same time; and particles’ ability to tunnel through barriers as if they were walking through a wall.

All of this seems crazy, but it is how things operate at the atomic level: the laws of physics are different. Einstein was so skeptical about quantum entanglement that he wrote a paper in 1935 titled “Can quantum-mechanical description of physical reality be considered complete?” He argued that it was not possible. Read more

May 14, 2015

A Quantum Computer Is a Delicate Beast: Video Tour of D-Wave’s Black Box (Part I) — By Jason Dorrier SingularityHub

Posted by in categories: computing, quantum physics

http://cdn.singularityhub.com/wp-content/uploads/2015/05/dwave-quantum-computer-vid-1-1000x400.jpg

Quantum computing is an old idea. But in the practical sense, it’s still very early days. If you actually want your own ready-made quantum computer—you won’t have to do much comparison shopping.

The D-Wave series of quantum computers have been making waves in recent years. USC and Lockheed Martin acquired a D-Wave One in 2011, and Google went in on a D-Wave Two with NASA in 2013. Read more

Apr 24, 2015

Article: Harnessing “Black Holes”: The Large Hadron Collider – Ultimate Weapon of Mass Destruction

Posted by in categories: astronomy, big data, computing, cosmology, energy, engineering, environmental, ethics, existential risks, futurism, general relativity, governance, government, gravity, information science, innovation, internet, journalism, law, life extension, media & arts, military, nuclear energy, nuclear weapons, open source, particle physics, philosophy, physics, policy, posthumanism, quantum physics, science, security, singularity, space, space travel, supercomputing, sustainability, time travel, transhumanism, transparency, treaties

Harnessing “Black Holes”: The Large Hadron Collider – Ultimate Weapon of Mass Destruction

Why the LHC must be shut down

Apr 24, 2015

CERN-Critics: LHC restart is a sad day for science and humanity!

Posted by in categories: astronomy, big data, complex systems, computing, cosmology, energy, engineering, ethics, existential risks, futurism, general relativity, governance, government, gravity, hardware, information science, innovation, internet, journalism, law, life extension, media & arts, military, nuclear energy, nuclear weapons, particle physics, philosophy, physics, policy, quantum physics, science, security, singularity, space, space travel, supercomputing, sustainability, time travel, transhumanism, transparency, treaties
PRESS RELEASE “LHC-KRITIK”/”LHC-CRITIQUE” www.lhc-concern.info
CERN-Critics: LHC restart is a sad day for science and humanity!

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Mar 26, 2015

Here’s How You Can Help Build a Quantum Computer

Posted by in categories: computing, quantum physics

Maddie Stone — GizmodoHere's How You Can Help Build a Quantum Computer

Quantum computers—theoretical machines which can process certain large and difficult problems exponentially faster than classical computers—have been a mainstay of science fiction for decades. But actually building one has proven incredibly challenging.

A group of researchers at Aarhus University believes the secret to creating a quantum computer lies in understanding human cognition. So, they’ve built computer games to study us, first.

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Mar 24, 2015

Super Physics for Super Technologies

Posted by in categories: astronomy, cosmology, defense, disruptive technology, education, engineering, general relativity, particle physics, physics, quantum physics, science, space travel

CoverThumbnailTitle: Super Physics for Super Technologies
Sub Title: Replacing Bohr, Heisenberg, Schrödinger & Einstein
Author: Benjamin T Solomon
Paperback: 154 pages
Publisher: Propulsion Physics, Inc. (March 19, 2015)
ISBN-10: 1508948011
ISBN-13: 978–1508948018
Language: English

Publisher’s Link: Super Physics for Super Technologies
Amazon’s Link: Super Physics for Super Technologies

Reviewer’s comments: “Benjamin is the second researcher I have met who has tried to consider a nonsingular cosmology. The first was Christi Stoica, which I met in 2010″.
Andrew Beckwith PhD

The Objective: This book, Super Physics for Super Technologies, proposes that a new physics exists. The findings are based on 16 years of extensive numerical modeling with empirical data, and therefore, both testable and irrefutable.

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Feb 22, 2015

How NASA uses quantum computing for space travel and robotics

Posted by in categories: computing, quantum physics
— GigaOM

Quantum computing is still in its infancy, even though the idea of a quantum computer was developed some thirty years ago. But there are a whole load of pioneering organizations (like Google) that are exploring how this potentially revolutionary technology could help them solve complex problems that modern-day computers just aren’t capable of doing at any useful speed.

One such organization is NASA, whose use of D-Wave Systems quantum computing machines is helping it research better and safer methods of space travel, air traffic controls and missions involving sending robots to far-off places, explained Davide Venturelli, a science operations manager at NASA Ames Research Center, Universities Space Research Association. I’ll be speaking with Venturelli on stage at Structure Data 2015 from March 18–19 in New York City and we’ll be sure to cover how NASA envisions the future of quantum computing.

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