## Events - Daily

**November 12, 2013**>>

Tuesday,
November 12 |
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Special Seminar - Double Disk Dark Matter - Lisa Randall - Professor, Harvard University Jadwin A06 · 2:00 p.m.– 3:00 p.m. |

Math Physics Seminar, Nicolas Rougerie, "Structure of large bosonic systems: the mean-field approximation and the quantum de Finetti theorem" I will discuss a general strategy to derive Hartree's theory for the ground state of a generic interacting many-bosons system with mean-field scaling. The validity of the mean-field approximation is interpreted as a consequence of the structure of the set of bosonic density matrices with large number of particles, in particular of the so-called quantum de Finetti theorem. The approach is general and applies for example to famous examples such as the trapped Bose gas, bosonic atoms and boson stars Jadwin A06 · 4:30 p.m.– 5:00 p.m. |