I will discuss the symmetries of (linearized) gravity and its interpretation as a gapless phase arising from the structure of mixed anomalies of these symmetries.

The urgency to probe biological dynamics is impeded by a major challenge: the large dynamic range of biological processes—interactions of molecules within milliseconds can lead to changes across the whole-organism over days to years. It calls for measurements with both high spatiotemporal resolution and large-scale long-term coverage. However,…

Motivated by holographic duality and the Ryu-Takyanagi formula, we ask the question, “What quantum problem are Einstein’s equations solving?” Answering this question amounts to dissecting or “deconstructing” AdS/CFT to identify the quantum-mechanical origins of spacetime and gravity. We propose a solution involving a class of dynamical…

**This interactive workshop on teaching strategies that can help promote student success, regardless of their gender**. The discussion will revolve around studies that education researchers have shown to be effective in narrowing gender gaps in student achievement, paying particular attention to a study involving …

Motivated from the Swampland program and combined with observational data, we argue that our universe enjoys one mesoscopic dimension of micron scale. We explain why the KK excitation of graviton in this extra dimension is a good candidate for the dark matter. Moreover we show that the Swampland dS conjecture naturally leads to the…

In the Thouless-Anderson-Palmer approach to mean-field spin glasses, the free energy is presented as the infimum of a functional which TAP defined over the space of all possible magnetization vectors, subject to a convergence condition. Its self-averaging over exponentially many solutions at low temperature seems to be taken for granted, though…

Raman scattering, invented at the end of the last pandemic, can provide a wealth of information on the fractional, magnetic, lattice and charge excitations at the heart of quantum materials and devices. I will first discuss how Raman provides direct evidence for coupled phonon-electron fluids in topological semimetals, helping to explain their…

Tensor models exhibit a melonic large-N limit. They were first introduced in zero dimension in the context of random geometry and quantum gravity. They were then generalized in d dimensions where they give rise in the infrared to a new kind of CFTs, analytically accessible, called melonic CFTs. In the first part of the talk, I will briefly…

Animal genomes are folded into loops and topologically associating domains (TADs) by CTCF and loop extruding cohesins. These loops and domains are thought to play critical roles in regulating gene expression by regulating long-range enhancer-promoter interactions. But whether CTCF/cohesin loops are stable or dynamic structures was…

Abstract:

The coalescence of compact binaries and the gravitational waves produced in this process provide an unique view into gravity in its dynamical, nonlinear regime. Proeminent during a black-hole coalescence is the plunge-merger stage, when the black holes collide at a large fraction of the speed of light and around which the…

One of the unique features of quantum gravity is the lack of local observables and completeness of boundary observables (e.g. S-matrix in flat space or CFT correlators in AdS). I will show that the existence of such boundary observables is non-trivial and is equivalent to TCC in scalar field cosmologies. Moreover, it is deeply connected to the…

The bootstrap program leverages symmetry and positivity to carve out the space of consistent quantum theories. In this talk I will highlight some of its recent successes, ranging from the numerical solution of statistical models at criticality to universal constraints on quantum gravity.

Recording of Talk:…

**Remo Ruffini** is the Co-Founder and Director of the International Center for Relativistic Astrophysics. He has served as Professor of Theoretical Physics at the University of Rome. He is an APS Fellow and a Google Fellow.

**Abstract**: Supernovae of constant luminosities, with a tight neutron star…

In the event of metastatic disease, emergence of a lesion can occur at varying intervals from diagnosis and in some cases following successful treatment of the primary tumor. Genetic factors that drive metastatic progression have been identified, such as those involved in cell adhesion, signaling, extravasation and metabolism. However,…

I will discuss a direct rigorous mathematical proof of the Gregory--Laflamme instability for the 5D Schwarzschild black string. This is a mode instability at the level of the linearised vacuum Einstein equation. Under a choice of ansatz for the perturbation and a gauge choice, the linearised vacuum Einstein equation can be…

This talk reviews the use of radial quantization to compute Chern-Simons partition functions on handlebodies of arbitrary genus. The partition function is given by a particular transition amplitude between two states which are defined on the Riemann surfaces that define the (singular) foliation of the handlebody. By requiring that the…

Self-interacting dark matter (SIDM) offers the potential to mitigate some of the discrepancies between simulated cold dark matter (CDM) and observed galactic properties. In various SIDM models, dark matter particles can scatter with each other in elastic or inelastic collisions. In my talk, I will discuss the effects of elastic…

## By Year

## By Category

- Astroparticle Seminar
- Atomic Physics Seminar
- Biophysics Seminar
- Condensed Matter Seminar
- Dark Cosmo Seminar
- Distinguished Lecture Series
- Donald R. Hamilton Colloquium
- Donald R. Hamilton Lecture
- Equity Diversity and Inclusion Initiative
- FPO
- Gravity Group Seminar
- Gravity Initiative Seminar
- High Energy Experiment Seminar
- High Energy Theory Seminar
- Mathematical Physics Seminar
- Particle Physics Seminar
- PCTS Seminar
- Phenomenology Seminar
- Princeton Quantum Colloquium
- Quantum Initiative
- Special Event
- Special Seminar
- Statistical Mechanics Seminar