Events Archive

Princeton Quantum Colloquium: Surprises in High-Temperature Transport
Mon, Dec 6, 2021, 12:30 pm12:30 pm

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…

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HET | It from Qubit Conference | Workshop on Quantum Information and Spacetime | Wolfensohn Hall
Mon, Dec 6, 2021, 8:00 amWed, Dec 8, 2021, 6:00 pm

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…

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HET Seminar | Pieter Bomans | "One-dimensional sectors from the squashed three-sphere" | PCTS 407 & Zoom
Fri, Dec 3, 2021, 1:45 pm1:45 pm

 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…

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Special Seminar, Dicke Candidate Shengkai Li, Georgia Institute of Technology, "Field-mediated Interaction in Active Matter" December 3, 2021, Jadwin 481
Fri, Dec 3, 2021, 10:00 am10:00 am

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…

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Special Seminar, Dicke Candidate Ako Jamil, Yale University, "Light and Charge Transport in Liquid Xenon Detectors for Rare Event Searches" December 2, 2021 Jadwin 481
Thu, Dec 2, 2021, 10:00 am10:00 am

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…

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Assembling an optical tweezer array of fully quantum-state controlled polar molecules
Wed, Dec 1, 2021, 3:00 pm3:00 pm

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…

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Special Seminar w/Dicke candidate Giovanni Scuri (Harvard): “Engineering exciton properties in atomically thin semiconductors via the twist angle"
Wed, Dec 1, 2021, 1:30 pm1:30 pm

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…

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Special Seminar w/Dicke candidate Cheng Zang (Caltech): “The development and deployment of the first BICEP Array receiver at 30/40 GHz"
Wed, Dec 1, 2021, 12:00 pm12:00 pm

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…

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PRISM/PCCM Seminar "Dynamic Speckle Holography: Probing Strain Fields in Fractured Materials"
Wed, Dec 1, 2021, 12:00 pm12:00 pm

Speaker: Prof. David Weitz, Harvard, Department of Physics 
Hosts: Prof. Sujit Datta and Prof. Pierre-Thomas Brun, Princeton CBE
Registration is required

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Mathematical Physics Seminar, Tues, Nov 30, 4:30 pm, Jadwin A-06, Simone Warzel, TU-Munich, “The Spectral Gap in Fractional Hall Systems”
Tue, Nov 30, 2021, 4:30 pm4:30 pm

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…

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HEP-Dicke Candidate-Kiley Kennedy-Columbia-"Spotlight on Supersymmetry at the LHC: The First ATLAS Search for Displaced and Delayed Diphoton Resonances"
Tue, Nov 30, 2021, 3:30 pm3:30 pm

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…

HET Seminar | Masataka Watanabe | "Quantum Information Theory of the Gravitational Anomaly" | Location: Zoom
Tue, Nov 30, 2021, 1:45 pm1:45 pm

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…

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Natural Superlattice Design of Quantum Materials
Tue, Nov 30, 2021, 12:30 pm12:30 pm

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…

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HET Seminar | Netta Engelhardt, MIT | "Finding Pythons in Unexpected Places" | Zoom
Mon, Nov 29, 2021, 2:30 pm2:30 pm

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…

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PGI Fall Seminar Series| Aaron Held| Princeton University|"Black Holes Beyond General Relativity: Shadows, Stability, and Nonlinear Evolution"
Mon, Nov 29, 2021, 12:30 pm12:30 pm

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…

University is Closed
Fri, Nov 26, 2021, 8:17 am8:17 am
Thanksgiving
Thu, Nov 25, 2021, 8:16 am8:16 am
HET Seminar | David Meltzer, Cornell | "Dispersion Formulas for AdS/CFT and Inflation" | Zoom
Mon, Nov 22, 2021, 2:30 pm2:30 pm

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…

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PGI Fall Seminar Series|Hsin-Yu Chen-Einstein Fellow, MIT|"Gravitational-wave Multimessenger Observations from the Production of Gold to the Expansion of the Universe"
Mon, Nov 22, 2021, 12:30 pm12:30 pm

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…

EDI seminar with Kasey Wagoner: "Simons-NSBP Scholars Program"
Wed, Nov 17, 2021, 4:00 pm4:00 pm

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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