Hamilton Colloquium Series, Cumrun Vafa, Harvard University, "The String Landscape and the Swampland" Thu, Nov 19, 2020, 12:15 pm – 12:15 pm String theory landscape of vacua point to new consistency conditions that a quantum gravitational system must satisfy. There are only a small number of quantum field theories that satisfy these conditions and all the rest belong to the `Swampland' which cannot be consistently coupled to gravity. In this talk I review some of these conditions… Speaker Cumrun Vafa Affiliation Harvard University Presentation “The String Landscape and the Swampland” A free lecture open to the public. Hamilton Colloquium Series, Charles M Marcus, NBI, "The Search for Fractional Statistics" Thu, Nov 12, 2020, 12:00 pm – 12:00 pm Panel discussion with Duncan Haldane (Princeton), Michael Manfra (Purdue) and Gwendal Feve (ENS) The possibility of particles with fractional statistics intermediate between those of fermions and bosons in two dimensional systems was raised as early as 1976 in theoretical work by… Speaker Charles M Marcus Affiliation Niels Bohr Institute Presentation "The Search for Fractional Statistics" A free lecture open to the public. Hamilton Colloquium Series, Monika Schleier-Smith, Stanford University, "Choreographing Quantum Spin Dynamics with Light" Thu, Nov 5, 2020, 12:00 pm – 12:00 pm The power of quantum information lies in its capacity to be non-local, encoded in correlations among two, three, or many entangled particles. Yet our ability to produce, understand, and exploit such correlations is hampered by the fact that the interactions between particles and ordinarily local. I will report on… Speaker Monika Schleier-Smith Affiliation Stanford University Presentation "Choreographing Quantum Spin Dynamics with Light" A free lecture open to the public. Hamilton Colloquium Series, Andrei Beloborodov, Columbia University, "Explosive Neutron Stars" Thu, Oct 29, 2020, 12:00 pm – 12:00 pm Neutron stars are by far the strongest known magnets in the universe. Some of them (called magnetars) generate explosions by suddenly dissipating magnetic energy with a rate up to $10^{47}$ erg/s. These magnetic explosions emit giant gamma-ray flares observed in our and neighboring galaxies. Similar explosions in… Speaker Andrei Beloborodov Affiliation Columbia University Presentation "Explosive Neutron Stars" A free lecture open to the public. Hamilton Colloquium Series, Jenny Greene, Princeton University, "Exploring Supermassive Black Holes" Thu, Oct 15, 2020, 12:15 pm – 12:15 pm Panel Discussion with Suvi Gezari, Brian Metzger and Marta Volonteri This panel discussion accompanies the conference “Exploring Supermassive Black Holes”. We (Suvi Gezari, Jenny Greene, Brian Metzger, Marta Volonteri) will discuss the critical stages in the life… Speaker Jenny Greene Affiliation Princeton University Presentation "Exploring Supermassive Black Holes" A free lecture open to the public. Hamilton Colloquium Series, Leonid Mirny, MIT, "Physics of Your Chromosomes" via Zoom Thu, Oct 1, 2020, 12:00 pm – 12:00 pm DNA of the human genome is 2 meters long and is folded into chromosomes that fit in a 10-micron cellular nucleus. I will discuss physical principles that govern folding of long DNA molecules, including phase separation, topological effects in polymer systems, and non-equilibrium phenomena. Recent studies have shown… Speaker Leonid Mirny Affiliation MIT Presentation "Physics of Your Chromosomes" A free lecture open to the public. Hamilton Colloquium Series, Luis Fernando Alday, Oxford University, "Quantum Scattering Amplitudes in AdS/CFT" Thu, Feb 20, 2020, 4:00 pm – 4:00 pm The AdS/CFT correspondence maps correlators of local operators in a conformal field theory to scattering amplitudes in a gravitational/string theory on curved space-time. The study of such amplitudes is incredibly hard and has mostly been done in a certain classical limit. We show how modern analytic bootstrap techniques allow us to go much… Speaker Luis Fernando Alday Affiliation Oxford University Presentation "Quantum Scattering Amplitudes in AdS/CFT" A free lecture open to the public. Hamilton Colloquium Series, Ricard Alert, Princeton University, "The Physics of Collective Cell Migration" Thu, Feb 13, 2020, 4:00 pm – 4:00 pm Cells in our body move in groups during development, wound healing, and tumor spreading. Bacterial cells also coordinate their motion to aggregate into biofilms, to feed cooperatively, and to form fruiting bodies. All these collective movements rely on physical mechanisms involving cell-generated propulsion forces and both mechanical and… Speaker Ricard Alert Affiliation Princeton University Presentation "The Physics of Collective Cell Migration" A free lecture open to the public. By Year 2024 (6)2023 (15)2022 (11)2021 (3)2020 (8)(selected)2019 (17)2018 (20)2017 (16)2016 (20)2015 (16)2014 (17)2013 (19)2012 (20)2011 (16)2010 (9) By Category Astroparticle SeminarAtomic Physics SeminarBiophysics SeminarCondensed Matter SeminarDark Cosmo SeminarDistinguished Lecture SeriesDonald R. Hamilton ColloquiumDonald R. 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