Physics Colloquium

The Physics Department colloquia are held on Mondays at 4:15pm in 428 Pupin Hall.  Prior to the colloquia Coffee Hour is served starting at 3:30pm on the 7th floor in 705 Pupin.

Colloquia are scheduled during the academic year. They are not held during the summer months.

Colloquium organizer:  Mike Tuts pmt2(at)columbia.edu

Jainendra Jain, Penn State University

Monday, November 19, 2018 - 4:15pm

 

"The cool world of electrons trapped in a magnetic vortex"

When electrons in two dimensions are cooled to near absolute zero and exposed to a strong magnetic field, the repulsive Coulomb interaction traps them into quantized magnetic vortices to create topological particles called composite fermions. These are responsible for the unexpected phenomenology of this state, including the celebrated fractional quantum Hall effect.

Albert Young, North Carolina State University/Triangle Universities Nuclear Laboratory for the UCNtau Collaboration

Monday, November 26, 2018 - 4:15pm

 

"The neutron lifetime challenge: particle physics with neutrons in bottles and beams"

Measurements of neutron decay provide us with our most precise characterization of components of the charged weak current of the nucleon and are playing an important role in the broad band constraints from beta decay at the 11 TeV level on new physics.  In the standard model, two coupling constants (for vector and axial-vector couplings) are required to specify the neutron lifetime and the angular correlations of the decay products.  Alt

Barry Barish, Caltech & LIGO

Monday, February 11, 2019 - 4:15pm

 

Title & abstract TBA

About the speaker

Barry Barish earned his B.A. in physics (1957) and Ph.D. in experimental particle physics (1962) at the University of California, Berkeley. He came to Caltech as a postdoc in 1963, where he has pursued his academic and research careers and is currently the Maxine and Ronald Linde Professor of Physics, Emeritus. 

David Awschalom, University of Chicago

Monday, April 29, 2019 - 4:15pm

 

Title & abstract TBA

About the speaker

Professor Awschalom is one of the world’s leading scientists in spintronics and quantum information engineering. His research involves understanding and controlling the spins of electrons, ions, and nuclei for fundamental studies of quantum systems, as well as potential applications in computing, imaging, and encryption. 

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