## Events - Weekly

Sunday,
November 23 |
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Monday,
November 24 |

Condensed Matter Seminar, Chen Chin, U of Chicago,“Ferromagnetic domains and roton excitations in a dilute Bose superfluid” We present a new scheme to engineer the energy-momentum dispersion of atoms in optical lattices. By hybridizing bands, we identify a novel quantum phase transition from the emergence of superfluid domains with ferromagnetic interactions. Bragg spectroscopy within one domain reveals the appearance of roton excitations, which strongly suppress superfluidity near the quantum critical point. PCTS Seminar Room · 1:15 p.m.– 2:30 p.m.High Energy Theory Seminar- IAS - Joao Gomes, “Quantum Supergravity and Exact Holography” I will present recent results on the computation of finite N corrections in supergravity in the context of AdS2/CFT1 and AdS4/ABJM holography. I will show how to use localisation in supergravity to compute all perturbative and nonperturbative charge corrections to the entropy of supersymmetric black holes including complicated number theoretic objects called Kloosterman sums. These are essential to recover an integer which can be identified as the number of black hole ground states. I will then explain how these techniques can be used on M-theory on AdS4xS^7 to compute the exact perturbative AdS4 partition function, the Airy function, as predicted from ABJM theory on a three sphere. Bloomberg Lecture Hall - Institute for Advanced Study · 2:30 p.m.– 3:30 p.m. |

Tuesday,
November 25 |

Informal High Energy Theory Seminar- IAS - Daniele Galloni, University of Durham - “Anatomy of the Amplituhedron” Bloomberg Lecture Hall - Institute for Advanced Study · 1:30 p.m.– 2:30 p.m. |

Wednesday,
November 26 |

Thursday,
November 27 |

Friday,
November 28 |

Saturday,
November 29 |