In this talk I will give a brief introduction to polarized neutrons and their applications in fundamental measurements, followed by an introduction to CSNS, and several potential fundamental measurements that are under consideration to take place at CSNS.

**Inference of effective networks from neural data to better understand spatial navigation**

As an animal moves in space and receives external sensory inputs, it must dynamically maintain the representations of its position and environment at all times. How the hippocampus, a…

Morning:

9:00 Arrive

9:30-10:30 Art McDonald, Queen's University & Aksel Halling, University of Alberta

10:30-11…

The quartic coupling of the Standard Model Higgs nearly vanishes at a high energy scale. We show that this is explained by the parity symmetry and its spontaneous break down by the condensation of the parity partner of the Higgs. The parity can solve the strong CP problem. The theory is embedded into SO(10) unification and the precise gauge…

Microbial ecosystems and their metabolic activity play a fundamental but poorly understood role at multiple scales, from human health to biogeochemical cycles. In fact, metabolism, in addition to being the “engine” of every living cell, mediates competition and cross-feeding between different species, and dictates how cells interact with their…

I will discuss an approach to integrable models from afour-dimensional Chern-Simons-type gauge theory. For introductionplease have a look at E. Witten arXiv:1611.00592 or K. CostelloarXiv:1308.0370. It might be interesting to look into some Feynmandiagram computations in my paper arXiv:1709.09993 with Edward andKevin (e.g. section 4 and section…

Abstract: A well-motivated class of dark matter candidates, including axion-like particles and dark photons, takes the form of coherent oscillations of a light bosonic field. If the dark matter couples to Standard Model photons, it may be possible to detect it via absorptions in a laboratory target. I will discuss a new class of detectors at…

Topological states of matter are characterized by topological invariants, which are physical quantities whose values are quantized and do not depend on details of the measured system. Among them the electrical Hall conductance, which is expressed in units of e2/h (e the electron charge, h the Planck constant), is easiest to probe. In the…

We study t Hooft anomalies of 1-form and 0-form symmetries in SU(N) gauge theories with adjoint fermions, focusing on the rich worldvolume physics of domain walls mandated by anomaly inflow. In two semiclassical regimesone of the high-T theory, and the other where the theory is compactified on a small spatial circle (with periodic boundary…

The past decades have seen rapid advances in our ability to probe and control atoms. The ability to bring atoms into the ultracold regime has opened up many applications, ranging from creating the most precise clocks to quantum simulation of condensed matter systems. Compared to atoms, molecules have a much richer internal…

Applying Swarm Engineering to Control Collective Cell Dynamics

Multicellular life is driven by collective cell migration spanning morphogenesis, growth, wound healing, and even cancer invasion. Our group seeks to better understand such collective behaviors in living tissues in order that we can learn to control them, much as a…

This talk will be an elementary introduction to cosmological theories that replace the big bang with a smooth, classical transition from contraction to expansion in order to address many of the fundamental problems of cosmology.

**Sign up here by 2pm tomorrow, Thursday**

One major open problem in quantum information theory is how to build a quantum hard drive, i.e. a quantum mechanical system that can store quantum information reliably for a very long time without active error correction. No completely satisfying solution to this problem has been found, but in the search for possibilities a whole new class of…

Abstract: We show how in the strongly-disordered, gapless regime, the topological properties of chiral chains (class AIII 1D in the Kitaev table) can be read off from the Lyapunov spectrum of the system at zero energy, and prove that these objects are topologically stable in the strongly-disordered gapless regime.

(Based on joint…

## 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