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1:44:25 Stanford University English 2011

Topics in String Theory | Lecture 8

(March 7, 2011) Leonard Susskind gives a lecture on string theory and particle physics that dives into the idea of cosmic horizons as well as the relationship between ultraviolet and infrared light. In the last of course of this series, Leonard Susskind continues his exploration of string theory that attempts to reconcile quantum mechanics and general relativity. In particular, the course focuses on string theory with regard to important issues in contemporary physics.
  • Published: 2011
  • Publisher: Stanford University
  • Language: English
1:12:43 Phillies, George English 2012

18 Colloid Dynamics

Lecture 18 - colloid dynamics, a topic rarely included in discussions of polymer dynamics. The forces are the same; the particle shapes are different. George Phillies lectures on polymer dynamics, based on his book "Phenomenology of Polymer Solution Dynamics".
  • Published: 2012
  • Publisher: Phillies, George
  • Language: English
1:09:33, Foundation for Fundamental Research on Matter (FOM) English 2011

Master class II with David Quéré

Two hundreds years ago, Thomas Young understood how the solid/liquid contact is dictated by surface forces. Our plan is to discuss how the solid roughness modifies (quite dramatically) this law. Roughness can be either accidental, or set at a surface with micro-machined extures, which decides the resulting properties: super-hydrophilicity, water repellency, slip, anti-fogging properties, etc. We present recent developments in this lively field of surface science.
  • Published: 2011
  • Publisher:, Foundation for Fundamental Research on Matter (FOM)
  • Language: English
2:03:46 Stanford University English 2012

The Theoretical Minimum | Lecture 5

(February 6, 2012) Leonard Susskind discusses an array of topics including uncertainty, the Schroedinger equation, and how things evolve with time.
  • Published: 2012
  • Publisher: Stanford University
  • Language: English
04:10 Institute of Physics (IOP), Deutsche Physikalische Gesellschaft (DPG) English 2013

Controlling vortex chirality in hexagonal building blocks of artificial spin ice

We exploit dipolar coupling to control the magnetic states in assemblies of single-domain magnetic nanoislands, arranged in one, two and three adjacent hexagonal rings. On tailoring the shape anisotropy of specific islands, and thus their switching fields, we achieve particular target states with near perfect reliability, and are able to control the chirality of the vortex target states. The magnetic states are observed during magnetization reversal with x-ray photoemission electron microscopy and our results are generally in excellent agreement with a numerical model based on point dipoles and realistic values of disorder. We conclude with a quantitative discussion of how our results depend on disorder and the chosen bias in shape anisotropy.
  • Published: 2013
  • Publisher: Institute of Physics (IOP), Deutsche Physikalische Gesellschaft (DPG)
  • Language: English
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