15 results found for physics

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00:01:00

Quantum Spin Hall effect in graphene

by José Luis Lado
Quantum Spin Hall effect in graphene
for All ages,
Arts presentations | All ages | 8 years ago | 5948 views
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The quantum spin Hall effect is a topological state of matter characterized by sustaining gapless chiral edge states together with an insulating bulk. This phase can be triggered out by applying strong magnetic fields in a graphene sample

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00:30:00

Superposition, Entanglement, and Raising Schrödinger’s Cat

by David Wineland
Superposition, Entanglement, and Raising Schrödinger’s Cat
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 2219 views
Rating:

In 1935, Erwin Schrödinger, one of the inventors of quantum mechanics, illustrated his discomfort with the theory by pointing out that its extension to the macroscopic world could lead to bizarre situations such as a cat being simultaneously alive a....

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00:31:00

Controlling Photons in a Box and Exploring the Quantum to Classical Boundary

by Serge Haroche
Controlling Photons in a Box and Exploring the Quantum to Classical Boundary
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1714 views
Rating:

The founders of quantum theory assumed in 'thought experiments' that they were manipulating isolated quantum systems, obeying the counterintuitive laws which they had just discovered.  Technological advances have recently turned these virtual experi....

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00:34:00

The Quantum Mechanics of Light: Interference, Entanglement – and Ghosts

by Roy Glauber
The Quantum Mechanics of Light: Interference, Entanglement – and Ghosts
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1556 views
Rating:

The early days of the quantum theory presented many dilemmas connected with interference phenomena and what we have come to call the entanglement of states. We are much better able to deal with these problems now, both in theory and experiment, but t....

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00:33:00

A Century of Quantum Mechanics

by David Gross
A Century of Quantum Mechanics
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 2093 views
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In October 2011 we celebrated the centenary of the Solvay conferences that played a unique and important role in the development of twentieth century physics, most notably in the quantum revolution whose birth overlapped the initiation of these meeti....

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00:31:00

Creating Artificial Magnetic Fields to Act on Neutral Atoms

by William Phillips
Creating Artificial Magnetic Fields to Act on Neutral Atoms
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1557 views
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Cold, quantum degenerate gases of neutral atoms have proved to be useful in simulating the behavior of quantum systems like electrons in solids.  For example, cold atoms moving in optical lattices (periodic potentials created by interfering laser be....

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01:12:00

What is quantum non-locality?

by Sandu Popescu
What is quantum non-locality?
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1549 views
Rating:

In his talk Sandu will explain this quantum non-locality and present some of the uses of non-locality for quantum information and communication - strange effects such as teleportation - and will discuss the implications of non-locality for understand....

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01:03:00

Taming the Quanta

by Martin Plenio
Taming the Quanta
for 18-22 and upwards,
Lectures | 18-22 and upwards | 14 years ago | 1652 views
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Devices are now reaching the realm where individual structures are made up of only a few atoms so that quantum mechanics, the theory of the very small, is playing a crucial role. The inevitable quantum fluctuations produce noise which was initially e....

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00:06:00

The Quantum Lattice

by William Phillips
The Quantum Lattice
for 14-19 and upwards,
Lectures | 14-19 and upwards | 14 years ago | 1615 views
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Awarded a Nobel Prize for using lasers to control and cool atoms, producing the Bose-Einstein condensation, Bill Phillips is eager to hear about new theories from young scientists like Hannah Venzl. An exciting dialogue develops between them on a boa....

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00:52:00

The Seven Essential Highlights of QM Concepts in Chemical-Physics.

by Michael Kasha
The Seven Essential Highlights of QM Concepts in Chemical-Physics.
for 18-22 and upwards,
Lectures | 18-22 and upwards | 15 years ago | 1522 views
Rating:

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00:44:00

Masers and Lasers

by Charles Townes
Masers and Lasers
for 18-22 and upwards,
Interviews | 18-22 and upwards | 15 years ago | 2024 views
Rating:

Charles Hard Townes received the Nobel Prize for Phyiscs in 1964 'for fundamental work in the field of quantum electronics, which has led to the construction of oscillators and amplifiers based on the maser-laser principle' He was award half of the P....

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00:33:00

The Physics of Light

by Roy Glauber
The Physics of Light
for 18-22 and upwards,
Interviews | 18-22 and upwards | 15 years ago | 1796 views
Rating:

When asked how does he think about the problems of the physics of light, Glauber says that it is an off-shoot of particle physics. He says that he has mainly worked in nuclear physics, quantum electro-dynamics and the quantum theoretical version of M....

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