Links to Colloquia
Jump to upcoming colloquium
Past years' colloquia
Archive of videos - Fall 2012
Archive of videos - Spring 2013
Archive of videos - Fall 2013
Archive of videos - Spring 2014
Current videos - Fall 2014
Eisenbud Lecture Series in Mathematics and Physics
All colloquium videos are under copyright and may not be reproduced, in part or in total, without written permission of the speaker and of the Physics Department.
Martin Weiner Lecture Series
Department of Physics Colloquium
4:00 pm, Abelson 131
Refreshments at 3:30pm outside Abelson 131
Fall 2014 Colloquia
Tuesday, September 2
Enectali Figueroa-Feliciano, MIT
What's the Matter with the Universe?
Watch the video.
Tuesday, September 9
Matthew Headrick, Brandeis University
Quantum entanglement and the geometry of spacetime
Abstract: Recent developments have led to the discovery of a beautiful and surprising connection between the geometry of spacetime in quantum gravity and entanglement in quantum field theories. This discovery offers a new perspective on old puzzles concerning black holes, and may lead to a profoundly new way of thinking the emergence of spacetime from fundamental quantum-mechanical building blocks. I will describe these developments, explaining along the way the necessary background in general relativity, quantum field theory, and quantum information theory.
Tuesday, September 16
Jeffrey J. Fredberg, Harvard School of Public Health
Collective migration and cell jamming
Abstract: Our traditional physical picture holds with the intuitive notion that each individual cell comprising the cellular collective senses signals or gradients and then mobilizes physical forces in response. Those forces, in turn, drive local cellular motions from which collective cellular migrations emerge. Although it does not account for spontaneous noisy fluctuations that can be quite large, the tacit assumption has been one of linear causality in which systematic local motions, on average, are the shadow of local forces, and these local forces are the shadow of the local signals. New lines of evidence now suggest a rather different physical picture in which dominant mechanical events may not be local, the cascade of mechanical causality may be not so linear, and, surprisingly, the fluctuations may not be noise as much as they are an essential feature of mechanism. Here we argue for a novel synthesis in which fluctuations and non-local cooperative events that typify the cellular collective might be illuminated by the unifying concept of cell jamming. Jamming has the potential to pull together diverse factors that are already known to contribute but previously had been considered for the most part as acting separately and independently. These include cellular crowding, intercellular force transmission, cadherin-dependent cell-cell adhesion, integrin-dependent cell-substrate adhesion, myosin-dependent motile force and contractility, actin-dependent deformability, proliferation, compression and stretch.
Tuesday, September 23
No colloquium. Brandeis Thursday.
Tuesday, September 30
Mehran Kardar, MIT
Levitation by Casimir forces in and out of equilibrium
Abstract: A generalization of Earnshaw's theorem constrains the possibility of levitation by Casimir forces in equilibrium. The scattering formalism, which forms the basis of this proof, can be used to study fluctuation-induced forces for different materials, diverse geometries, both in and out of equilibrium. In the off-equilibrium context, I shall discuss non-classical heat transfer, and some manifestations of the dynamical Casimir effect.
Tuesday, October 7
Evelyn Fox Keller, MIT
Active Matter: Then and Now
Tuesday, October 14
Dam Thanh Son, University of Chicago
Tuesday, October 21
Matthew Reece, Harvard University
Tuesday, October 28
Chip Brock, Michigan State
Tuesday, November 4
Parthasarathi Majumdar, Ramakrishna Mission Vivekanandan University
The Quantum and the Continuum: Einstein's dichotomous legacies
Tuesday, November 11
Robert Meyer, Brandeis University
The Physics of Arches and Domes
Tuesday, November 18
Ian Hutchinson, MIT
Physics of Fusion Energy; What we know and what we don't know
Tuesday, November 25
No colloquium. Thanksgiving week.
Spring 2015 Colloquia
Tuesday, January 13
Tuesday, January 20
Tuesday, January 27
Tuesday, February 3
Tuesday, February 10
Tuesday, February 17
No colloquium. Midterm Recess.
Tuesday, February 24
Tuesday, March 3
No colloquium. APS Meeting.
Tuesday, March 10
Markus Deserno, Carnegie Mellon Physics
Tuesday, March 17
Robert J. Wood, Harvard University
Tuesday, March 24
Tuesday, March 31
Tuesday, April 7
No colloquium. Passover/Spring Recess.
Tuesday, April 14
Tuesday, April 21
Tuesday, April 28
No colloquium. Brandeis Friday.