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X-WR-CALNAME;VALUE=TEXT:ITC Special Seminar - Konstantin Batygin
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SUMMARY:ITC Special Seminar - Konstantin Batygin
DESCRIPTION:<span><span style="color:#222222"><span style="sans-serif"><span style="background-color:#ffffff">"Schrödinger Evolution of Self-Gravitating Disks"</span></span></span></span><br style="color:#222222;sans-serif;background-color:#ffffff"><br><span><span style="color:#222222"><span style="sans-serif"><span style="background-color:#ffffff">An understanding of the long-term evolution of self-gravitating disks ranks among the classic outstanding problems of astrophysics. In this talk, I will show that under suitable assumptions, the secular dynamics of quasi-Keplerian disks can be described by the time-dependent Schrödinger equation. In this context, apsidal density waves and nodal bending waves of a purely Newtonian disk correspond to the eigenmodes of a quasiparticle's wavefunction, confined in an infinite square well with boundaries given by the radial extent of the disk. I will further argue that external secular perturbations upon self-gravitating disks exhibit a mathematical similarity to quantum scattering theory. Applications of the theory to circumstellar disks and Galactic nuclei will be discussed. </span></span></span></span>
LOCATION:Phillips
STATUS:CONFIRMED
DTSTART:20171003T140000Z
DTEND:20171003T150000Z
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