One might expect high-temperature transport to be incoherent and diffusive. However, many experimentally relevant one-dimensional systems, such as the Heisenberg and Hubbard models, feature long-lived quasiparticles that give rise to anomalous transport. I will present a quantitative theory of high-temperature transport in such systems, in…

This workshop will focus on quantum gravity with the goal of unraveling the quantum mechanical structure of spacetime. The Scientific Program will be held in-person and also via Zoom and YouTube livestream.

This workshop is sponsored by the Simons Foundation It from Qubit collaboration and is followed by the collaboration Annual…

I will show that every three-dimensional N=4 superconformal field theory on the squashed sphere contains a set of protected operators whose correlation functions are governed by a one-dimensional theory. This one-dimensional theory arises from supersymmetric localization with respect to a special supercharge which is not contained in any N=2…

Like most physical systems, in active matter, the characteristics of interaction play an important role. For example, the extent of attraction can switch a collective of particles from a homogeneous mixture to phase-separated clusters. Further, particle concavity in shape-changing active systems can change…

Noble Liquid Time Projection Chambers are ubiquitously used in the field of rare events searches such neutrinoless double beta decay or dark matter. A detailed understanding of light and charge transport in liquid xenon or liquid argon is of the utmost importance when modeling the performance of these experiments. In this talk I will present…

The ability to control particles in the quantum regime at the individual particle level has been a long sought goal in the

realm of quantum science for the past few decades. Such individually controlled entities could then serve as building

blocks for quantum simulators and computers. Of the many quantum objects developed in pursuit…

**Special seminar with Dicke fellowship candidate: ****Giovanni Scuri, Harvard University**

Abstract: The twist degree of freedom provides a powerful tool for engineering the electrical and optical properties of van der Waals (vdW) heterostructures. In this talk, I will show how the twist angle between two…

**Special seminar with Dicke fellowship candidate: Cheng Zang****, Caltech University**

The inflationary theory has been added into the picture of the well-established lambda cold dark matter (ΛCDM) standard model to explain the initial conditions of our universe. The quantum fluctuations in the early…

In this talk I will give an overview of recent progress regarding mathematical questions and proofs of the spectral properties of Haldane pseudo-potentials. These are short range interactions projected onto the lowest Landau level and are tailored to model properties of fractional Hall fluids and their…

To date, LHC searches have provided no definitive evidence for physics beyond the Standard Model (BSM). What if we’re looking in the wrong place? Long-lived particles (LLPs) arise from a variety of well-motivated BSM theories. However, they remain weakly constrained at the LHC: most reconstruction algorithms target prompt decays of particles…

I am going to argue that the non-vanishing gravitational anomaly in 2D CFT obstructs the existence of the well-defined notion of entanglement. As a corollary, we will also see that the non-vanishing gravitational anomaly implies the non-existence of the lattice regulator generalising the Nielsen-Ninomiya theorem. I will also generalise this to…

Connecting theoretical models for exotic quantum states to real materials is a key goal in quantum materials synthesis. Two-dimensional model systems have been proposed to host a wide variety of exotic phases- historically a number of techniques have been used to realize these including thin film growth and mechanical exfoliation. We describe…

We argue that novel (highly nonclassical) quantum extremal surfaces play a crucial role in reconstructing the black hole interior even for isolated, single-sided, non-evaporating black holes (i.e. with no auxiliary reservoir). Specifically, any code subspace where interior outgoing modes can be excited will have a quantum extremal surface in…

Abstract:

Guided by the principles of effective field theory, I will discuss three consecutive avenues to constrain physics beyond General Relativity with black-hole observations.

1) Shadows: Without specifying any particular gravitational dynamics, I will discuss image features of black-hole shadows in general…

Dispersion formulas explain how fundamental consistency conditions, such as causality and unitarity, constrain low-energy physical observables. In this talk I will discuss how dispersion formulas in Minkowski, de Sitter, and Anti-de Sitter space are related. In the first part I will discuss the relationship between the recently discovered…

Over last six years, the LIGO-Virgo detections of gravitational waves from compact binary mergers have underlined their promise as an independent and powerful tool to explore the Universe. Nevertheless, the electromagnetic observations of the counterparts of gravitational-wave sources provide different and complementary information about the…

Please join us for the first in-person installment of the Seminar Series on **Equity, Diversity and Inclusion** hosted by the Department of Physics and the Department of Astrophysics. Guest speaker, Kasey Wagoner, will discuss the** Simons-NSBP Scholars Program.
Refreshments (cider and donuts) will be served outside…**

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