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Science-Videos
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Miranda Cheng - K3 String Theory, the Largest Mathieu Group, and Holographic Moonshine

Talk at Strings 2011 held at the Uppsala University, July27-July2, 2011. Event website: http://www.physics.uu.se/external/strings2011/ Enjoy!

 

Related talk: Perimeter Institute

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GraduatePhysics - From String Theory To Black Holes To Holographic Universe (>650 videos)

GraduatePhysics - From String Theory To Black Holes To Holographic Universe (>650 videos) | Science-Videos | Scoop.it

All you ever wanted to know about modern physics (graduate level only!).

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Design of a Superconducting Quantum Computer

John Martinis visited Google LA to give a tech talk: "Design of a Superconducting Quantum Computer." This talk took place on October 15, 2013


Via Szabolcs Kósa
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Andreas Pappas's curator insight, March 28, 2014 12:42 AM

Although the video is quite long, it manages to thoroughly address the concepts and difficulties behind developing a quantum super computer. Nevertheless, the language used though-out the video is somewhat complex and without an understanding of the metalanguage used it is difficult to follow. Therefore, this a good resource for those with an advanced knowledge and understanding of quantum computers. 

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Let's build a quantum computer!
Understanding the architecture of a quantum processor

Andreas Dewes explains why quantum computing is interesting, how it works and what you actually need to build a working quantum computer. He uses the superconducting two-qubit quantum processor which he built during his PhD thesis as an example to explain its basic building blocks. He shows how this processor can be used to achieve so-called quantum speed-up for a search algorithm that can be run on it. Finally, he gives a short overview of the current state of superconducting quantum computing and Google's recently announced effort to build a working quantum computer in cooperation with one of the leading research groups in this field.

 

Google recently announced that it is partnering up with John Martinis - one of the leading researchers on superconducting quantum computing - to build a working quantum processor. This announcement has sparked a lot of renewed interest in a topic that was mainly of academic interest before. So, if Google thinks it's worth the hassle to build quantum computers then there surely must be something about them after all?

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What We Still Don't Know: "Are We Real?" A mind-boggling journey to post-human life

Series from Channel 4 featuring Sir Martin Rees.

 

There is a fundamental chasm in our understanding of ourselves, the universe, and everything. To solve this, Sir Martin takes us on a mind-boggling journey through multiple universes to post-biological life. On the way we learn of the disturbing possibility that we could be the product of someone elses experiment.

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The Universe As A Hologram (by Leonard Susskind, Stanford)

Leonard Susskind of the Stanford Institute for Theoretical Physics discusses the indestructability of information and the nature of black holes in a lecture ...
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Michio Kaku: What's the Fate of the Universe? It's in the Dark Matter

Why should you bother to wake up tomorrow knowing that we're all going to die billions and billions of years from now when the universe turns to absolute zero, when the stars blink out, when we have nothing but neutron stars and black holes? Dr. Kaku says that billions of years from now we may be able to move to a different universe.


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Photons to Bits and Beyond: The Science & Technology of Digital

The Yale School of Engineering & Applied Science presents the 2011 Victor M. Tyler Distinguished Lectureship in Engineering with Eric Fossum, Professor of Engineering in Dartmouth's Thayer School and a consultant to Samsung Electronics' Semiconductor R&D Center. Dr. Fossum, who earned a PhD in electrical engineering from Yale in 1984, is one of the world's leading solid-state image sensor device physicists, best known for inventing the CMOS image sensor. His "camera-on-a-chip" technology is used in nearly all camera phones and webcams, digital-still cameras, high-speed motion capture cameras, automotive cameras, dental x-ray cameras, and swallowable pill cameras.

 

An entrepreneur as well as inventor, Fossum's transfer of his own IP portfolio to industry has yielded one of Caltech's greatest licensing revenue streams, and he has served as CEO of two successful high-tech companies. His work was included on Reuters' list of "Baby Boomer Inventions that Changed the World," and Forbes calls him an inventor who has "changed your life."


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Radiation and Material Science Applications (35 hr video lecture series)

X-Ray Interaction with Matter, Synchrotron Radiation, etc. 35 hours of lectures

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The End of Space and Time? (by Prof. Robbert Dijkgraaf)

Robbert Dijkgraaf's focus is on string theory, quantum gravity, and the interface between mathematics and particle physics, bringing them together in an accessible way, looking at sciences, the arts and other matters.

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The Meissner effect - Is levitation the future of travel?

In this video Prof Robin Grimes and Dr Catherine Zentile demonstrate the spectacular world of quantum levitation using superconductivity and the Meissner Effect. We've all heard about solids, liquids and gases but did you know that there are at least 6 states of matter? Superconductors are one such state. Just as when we freeze water we're going from a liquid to a solid, in a similar way, when we cool down some peculiar materials we move from a 'normal' solid to a superconductor. But be warned! Even for the absurdly named 'high temperature' superconductors this transition happens at below -180 °C so lots of liquid nitrogen is needed to cool it down! After the transition the material looks the same to the naked eye -- it is its properties that become strange. Firstly, it loses ALL electrical resistance (hence the name superconductor). But being a perfect conductor isn't the property that makes 'superconductors' a new state of matter. Their uniqueness comes from the fact that they exhibit the Meissner effect which means that they expel any small magnetic fields nearby. Add a bit of quantum trapping and this allows superconductors to spectacularly levitate above magnets as we see in this video! And it is this exciting property that has been proposed by scientists and engineers as the technology to make levitating trains of the future a reality!

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1 million frames per second slow motion video of bullet impacts (by Werner Mehl)

Slow Motion video of bullet impacts made by Werner Mehl from Kurzzeit. These are by far the best slow motion bullet impacts available anywhere. Watch for the hollow point rounds in the ballistics gel.

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Mock-modular forms and Physics

Talk at Strings 2014 held at Princeton University and the Institute for Advanced Study, Princeton, June23-27, 2014.

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The dawn of the age of holograms (Alex Kipman @ TED)

Alex Kipman wants to create a new reality — one that puts people, not devices, at the center of everything. With HoloLens, the first fully untethered holographic computer, Kipman brings 3D holograms into the real world, enhancing our perceptions so that we can touch and feel digital content. In this magical demo, explore a future without screens, where technology has the power to transport us to worlds beyond our own.

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Eric Ladizinsky: Evolving Scalable Quantum Computers

Eric Ladizinsky visited the Quantum AI Lab at Google LA to give a talk "Evolving Scalable Quantum Computers." This talk took place on March 5, 2014.

"The nineteenth century was known as the machine age, the twentieth century will go down in history as the information age. I believe the twenty-first century will be the quantum age". Paul Davies

Quantum computation represents a fundamental paradigm shift in information processing. By harnessing strange, counterintuitive quantum phenomenon, quantum computers promise computational capabilities far exceeding any conceivable classical computing systems for certain applications. These applications may include the core hard problems in machine learning and artificial intelligence, complex optimization, and simulation of molecular dynamics .. the solutions of which could provide huge benefits to humanity. 

Realizing this potential requires a concerted scientific and technological effort combining multiple disciplines and institutions ... and rapidly evolving quantum processor designs and algorithms as learning evolves. D-Wave Systems has built such a mini-Manhattan project like effort and in just a under a decade, created the first, special purpose, quantum computers in a scalable architecture that can begin to address real world problems. D-Wave's first generation quantum processors (now being explored in conjunction with Google/NASA as well as Lockheed and USC) are showing encouraging signs of being at a "tipping point" .. matching state of the art solvers for some benchmark problems (and sometimes exceeding them) ... portending the exciting possibility that in a few years D-Wave processors could exceed the capabilities of any existing classical computing systems for certain classes of important problems in the areas of machine learning and optimization. 

In this lecture, Eric Ladizinsky, Co-Founder and Chief Scientist at D-Wave will describe the basic ideas behind quantum computation , Dwave's unique approach, and the current status and future development of D-Wave's processors. Included will be answers to some frequently asked questions about the D-Wave processors, clarifying some common misconceptions about quantum mechanics, quantum computing, and D-Wave quantum computers.

Speaker Info: Eric Ladizinsky is a physicist, Co-founder, and Chief Scientist of D-Wave Systems. Prior to his involvement with D-Wave, Mr. Ladizinsky was a senior member of the technical staff at TRW's Superconducting Electronics Organization (SCEO) in which he contributed to building the world's most advanced Superconducting Integrated Circuit capability intended to enable superconducting supercomputers to extend Moore's Law beyond CMOS. In 2000, with the idea of creating a quantum computing mini -Manhattan-project like effort, he conceived, proposed, won and ran a multi-million dollar, multi-institutional DARPA program to develop a prototype quantum computer using (macroscopic quantum) superconducting circuits. Frustrated with the pace of that effort Mr. Ladizinsky, in 2004, teamed with D-Wave's original founder (Geordie Rose) to transform the then primarily IP based company to a technology development company modeled on his mini-Manhattan-project vision. He is also responsible for designing the superconducting (SC) IC process that underlies the D-Wave quantum processors ... and transferring that process to state of art semiconductor production facilities to create the most advanced SC IC process in the world.

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Marcus Chown talks about the top 10 strangest things about the Universe

Marcus Chown of New Scientist Magazine on his Top 10 Bonkers Things About the Universe.

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Over 50 years of laser - 39 VIDEO lectures about lasers

Lasers and Photonics (from the 50th Anniversary of the Laser)

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35 VIDEO Lectures from the FQXi Interdisciplinary Meeting Investigating the Nature of "Time"

FQXi SETTING TIME ARIGHT conference, an interdisciplinary meeting investigating the nature of time.

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Seth Lloyd's Lecture about Quantum Limits to the Measurement of Spacetime Geometry

Seth Lloyd's Lecture about Quantum Limits to the Measurement of Spacetime Geometry | Science-Videos | Scoop.it

This talk analyzes the limits that quantum mechanics imposes on the accuracy to which spacetime geometry can be measured. By applying the fundamental physical bounds to measurement accuracy ensembles of clocks and signals, as in the global positioning system, I present a covariant version of the quantum geometric limit, which states that the total number of ticks of clocks and clicks of detectors that can be contained in a four volume of spacetime of radius R and temporal extent is less than or equal to RT divided by the Planck length times the Planck time. The quantum geometric bound limits the number of events or 'ops' that can take place in a four-volume of spacetime and is consistent with and complementary to the holographic bound which limits the number of bits that can exist within a three-volume of spacetime.

 

More Seth Lloyd Videos: http://tinyurl.com/9ozxym3

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Michio Kaku - Physics of the Future

Author and physicist Michio Kaku spoke at the Museum of Science on March 23, 2011.

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Do we need String Theory for Quantum Gravity? - Lance Dixon (SETI Talks)

The strong, weak, and electromagnetic interactions all have consistent, relativistic and quantum mechanical descriptions in terms of pointlike particles, but Einstein's theory of gravitation has long resisted a similar treatment, because of severe ultraviolet divergences. String theory solves these problems, but it introduces a new length scale, perhaps 16 orders of magnitude below what can be tested experimentally.


Dr. Dixon will describe recent theoretical progress in showing that a particular pointlike theory of gravity, called N=8 supergravity, might also be quantum mechanically consistent. In particular, N=8 supergravity has been shown explicitly to have no ultraviolet divergences in perturbation theory through the four-loop order. Dr. Dixon will also discuss the possible implications of these results.

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By 2019, the experimental reactor ITER will attempt to generate 500 MW of fusion power from 50 MW input

Listen as Stefano Concezzi and Michael Cerna talk about making energy from fusion. Fusion is happening all around us. By 2019, the ITER experimental reactor will attempt to generate 500 megawatts of fusion power from 50 megawatts of power consumed. In order to accurately measure plasma shape and position, critical to the eventual confinement of plasma at 150-million degrees, it takes a specialized real-time and multicore system. To simulate the hardware in the loop is even more difficult. See how NI LabVIEW and NI PXI help prove out this technology.

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Alain Coetmeur's curator insight, July 2, 2013 2:43 AM

Just to understand that Stefano Concezzi, before supporting LENR, was promoting Hot Fusion like ITER