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Archive for the ‘quantum physics’ category: Page 776

Mar 4, 2016

What Is Quantum Cryptography?

Posted by in categories: encryption, quantum physics

Nice fundamental article describing Quantum Cryptography.


And can it make codes truly unbreakable?

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Mar 3, 2016

Quantum technology for a new generation of inertial sensors

Posted by in categories: particle physics, quantum physics, robotics/AI, transportation

Could this Quantum Technology inertial sensors be utilized to provide more reliable navigation to driverless autos? Quantum again proves to serve multiple usages.


Advances in laser cooling of atoms have produced a new generation of inertial sensors based on matter-wave interferometers, which are becoming an essential technology for accurate positioning or geodesy.

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Mar 2, 2016

Diffie, Hellman win Turing Award; cryptography research update

Posted by in categories: encryption, quantum physics

Cryptography research panel at RSAC 2016 features debate on Apple vs. FBI, Juniper backdoor, and quantum crypto, and Diffie, Hellman nab Turing Award.

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Mar 2, 2016

How to Measure the Gravitational Field of a Quantum Object

Posted by in category: quantum physics

Measuring devices have become sensitive enough to detect the gravitational forces between tiny objects and may soon cross the quantum threshold.

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Mar 2, 2016

Human consciousness is simply a state of matter, like a solid or liquid – but quantum

Posted by in categories: neuroscience, quantum physics

Thanks to the work of a small group neuroscientists and theoretical physicists over the last few years, we may finally have found a way of analyzing the mysterious, metaphysical realm of consciousness in a scientific manner. The latest breakthrough in this new field, published by Max Tegmark of MIT, postulates that consciousness is actually a state of matter. “Just as there are many types of liquids, there are many types of consciousness,” he says. With this new model, Tegmark says that consciousness can be described in terms of quantum mechanics and information theory, allowing us to scientifically tackle murky topics such as self awareness, and why we perceive the world in classical three-dimensional terms, rather than the infinite number of objective realities offered up by the many-worlds interpretation of quantum mechanics.

Consciousness has always been a tricky topic to broach scientifically. After all, science deals specifically with effects that can be observed and described mathematically, and consciousness has heretofore successfully evaded all such efforts. In most serious scientific circles, merely mentioning consciousness might result in the rescinding of your credentials and immediate exile to the land of quacks and occultists. (Read: How to create a mind, or die trying.)

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Mar 1, 2016

Minister announces £204 million investment in doctoral training and Quantum Technologies science

Posted by in categories: engineering, quantum physics, science

UK is getting serious about Quantum especially in their universities; all £204 million worth.


Universities and Science minister Jo Johnson has announced two major investments in science and engineering research totaling £204 million.

Forty UK universities will share in £167 million that will support doctoral training over a two year period, while £37 million will be put into developing the graduate skills, specialist equipment and facilities that will put UK Quantum Technologies research at the forefront of the field.

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Mar 1, 2016

Triple entanglement paves way for quantum encryption

Posted by in categories: encryption, quantum physics

Three photons in a 3-D ‘twist’.

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Mar 1, 2016

Scott Aaronson On The Relevance Of Quantum Mechanics To Brain Preservation, Uploading, And Identity

Posted by in categories: computing, mathematics, neuroscience, quantum physics

Biography : Scott Aaronson is an Associate Professor of Electrical Engineering and Computer Science at MIT. His research interests center around the capabilities and limits of quantum computers, and computational complexity theory more generally. He also has written about consciousness and personal identity and the relevance of quantum mechanics to these issues.

Michael Cerullo: Thanks for taking the time to talk with me. Given the recent advances in brain preservation, questions of personal identity are moving from merely academic to extremely practical questions. I want to focus on your ideas related to the relevance of quantum mechanics to consciousness and personal identity which are found in your paper “Ghost in the Quantum Turing Machine” ( http://arxiv.org/abs/1306.0159 ), your blog “Could a Quantum Computer Have Subjective Experience?” ( http://www.scottaaronson.com/blog/?p=1951 ), and your book “Quantum Computing since Democritus” ( http://www.scottaaronson.com/democritus/) .

Before we get to your own speculations in this field I want to review some of the prior work of Roger Penrose and Stuart Hameroff ( http://www.quantumconsciousness.org/content/hameroff-penrose…-or-theory ). Let me try to summarize some of the criticism of their work (including some of your own critiques of their theory). Penrose and Hameroff abandon conventional wisdom in neuroscience (i.e. that neurons are the essential computational element in the brain) and instead posit that the microtubules (which conventional neuroscience tell us are involved in nucleic and cell division, organization of intracellular structure, and intracellular transport, as well as ciliary and flagellar motility) are an essential part of the computational structure of the brain. Specifically, they claim the microtubules are quantum computers that grant a person the ability to perform non-computable computations (and Penrose claims these kinds of computations are necessary for things like mathematical understanding). The main critiques of their theory are: it relies on future results in quantum gravity that don’t exist; there is no empirical evidence that microtubules are relevant to the function of the brain; work in quantum decoherence also makes it extremely unlikely that the brain is a quatum computer; even if a brain could somehow compute non-computable functions it isn’t clear what this has to do with consciousness. Would you say these are fair criticisms of their theory and are there any other criticisms you see as relevant?

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Mar 1, 2016

Peter Wittek, a roving adventurer between machine intelligence and quantum physics

Posted by in categories: quantum physics, robotics/AI, supercomputing

I must admit, when people see that you work with Quantum Computing and/ or networking; they have no idea how to classify you because you’re working on Nextgen “disruptive” technology that most of mainstream has not been exposed to.


Peter Wittek and I met more than a decade ago while he was an exchange student in Singapore. I consider him one of the most interesting people I’ve met and an inspiration to us all.

Currently, he is a research scientist working on quantum machine learning, an emergent field halfway between data science and quantum information processing. Peter also has a long history in machine learning on supercomputers and large-scale simulations of quantum systems. As a former digital nomad, Peter has been to over a hundred countries, he is currently based in Barcelona where, outside work hours, he focuses on dancing salsa, running long distances, and advising startups.

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Feb 29, 2016

Sharing secrets with light

Posted by in categories: finance, quantum physics

More great news on Quantum Networks; some banks in Europe are leveraging the technology to communicate among themselves.


Light is everywhere. Even the darkest of rooms in our homes contain a handful of blinking LEDs. But what is light? Few of us ever stop to think about this question. Around a hundred years ago scientists discovered that light comes in granules, much like the sand on a beach, which we now call photons.

These are truly bizarre objects that obey the rules of the quantum world. The rules allow some pairs of photons to share a property called entanglement. After being entangled, two photons behave as one object. Changing one photon will affect the other at exactly the same time, no matter how far apart they are.

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