Events - Daily
April 16, 2013 >>
|Tuesday, April 16|
Math Physics Seminar - Vieri Mastropietro, Univ of Milan, Italy, Universal finite size corrections and the central charge in non solvable Ising models
We investigate a non solvable two-dimensional ferromagnetic Ising model with nearest neighbor plus weak finite range interactions. We rigorously establish one of the predictions of Conformal Field Theory (CFT), namely the fact that at the critical temperature the finite size corrections to the free energy are universal. The corresponding central charge, defined in terms of the coefficient of the first subleading term to the free energy, is constant and equal to 1/2. Work in collaboration with A. Giuliani.
Jadwin A06 · 4:30 p.m.– 6:00 p.m.
Raymond & Beverly Sackler Lecture in Astrophysics, Bill Jones "The Universe in a New Light: The First Cosmological Results from the PLANCK Mission"
The precision and accuracy of the recently released Planck data are without precedent; the data from a single experiment provide all-sky images at wavelengths never before explored, covering more than three decades in angular scale with a signal dynamic range exceeding a factor of a million. These data open new avenues of research in fields ranging from Galactic astrophysics to cosmology. Our present Universe has shown herself to be both simple and elegant, and although her origins remain enshrouded in mystery, it appears that her past may have been more complex. While the Planck data have begun to inform us about the nature of cosmo-genesis, a new series of experiments are required to distinguish between competing theories of the origin of the Universe.
We will discuss the cosmological implications of the Planck data, and describe our current efforts to probe cosmic genesis with experiments like the Spider Antarctic long duration balloon experiment.
McDonnell A02 · 8:00 p.m.–10:30 p.m.