Events Archive

The near-century-old dark matter (DM) problem is one of the most intriguing mysteries in modern physics. We do not know the nature of 84% of matter in the Universe, yet it is thought to govern cosmic structure and hold galaxies and clusters together.

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...

 In Second-Order Topological Insulators (SOTI), bulk and surfaces are insulating while the edges or hinges conduct current in a quasi-ideal (ballistic) way, being insensitive to disorder.  Crystalline bismuth has been shown to belong to this class of materials [1,2,3].

The problem of strongly interacting gapless fermions above one dimension is one of the wildest open frontiers in quantum condensed matter where our understanding remains insular and embedded in vast oceans of mystery.

Hot spots, or plasmoids, formed due to magnetic reconnection in thin current sheets are conjectured to power frequent bright X-ray and near-infrared flares from supermassive black holes, like Sgr A* in the center of our Galaxy.

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.

I will discuss experimental prospects for directly detecting ultra-low-mass dark matter, including the interesting “Fuzzy” dark matter scenario.  I will describe experiments which are ongoing here at Princeton, and the challenges associated with them.  I will also present the results we have thus far, and the prospects for future improvements...

The Gaia mission has provided distance and velocity measurements of over a billion stars in the Milky Way, making it the largest stellar catalog at hand. Simultaneously, recent developments in cosmological simulations have made it possible to track stars and dark matter in realistic Milky Way-like galaxies.

Neutron stars, the most dense astrophysical bodies we know of, are at the heart of many interesting astrophysical phenomena from their birth in supernova explosions to their deaths in collisions with other dense objects.