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Making Quantum Matter from Light
In this talk I will discuss ongoing efforts at UChicago to explore matter made of light. I will begin with a broad introduction to the challenges associated with making matter...
Apr 21, 2020
2D Holography beyond JT
Dilaton-gravity models are integrable in two dimensions and admit a holographic description. In this talk, the holographic description of the Dilaton-gravity in flat spacetime is discussed. Using the gauge theory...
Dec 08, 2020
Testing the standard cosmological model with the Dark Energy Survey
The Dark Energy Survey (DES) is a photometric galaxy survey which, using measurements of distortions to galaxy shapes from weak gravitational lensing and other observables, we can use to test...
Dec 08, 2020
Efficient Data Compression and Causal Order Discovery for Multipartite Quantum Systems
In this talk, I will discuss two problems: quantum data compression and quantum causal order discovery, both for multipartite quantum systems. For data compression, we model finitely correlated states as...
Dec 09, 2020
A polarimetric view of black hole accretion flows and jets
The Event Horizon Telescope is a global effort to construct an Earth-sized virtual radio telescope array, with the goal to make pictures and movies of two nearby supermassive black holes...
Dec 09, 2020
Symmetries, graph properties, and quantum speedups
Aaronson and Ambainis (2009) and Chailloux (2018) showed that fully symmetric (partial) functions do not admit exponential quantum query speedups. This raises a natural question: how symmetric must a function...
Dec 09, 2020
Exploring alternatives to quantum nonlocality
In recent years, it has become increasingly well-known that nearly all the major no-go theorems in quantum foundations can be circumvented by violating a single assumption: the hidden variables (that...
Dec 09, 2020
Can we think time-symmetrically about causation?
We often say that quantum mechanics allows to calculate the probability of future events. In fact, quantum mechanics does not discriminate between predicting the future or postdicting the past. I...
Dec 10, 2020
Self-torque and frame nutation in binary black hole simulations
We investigate the precession of the spin of the smaller black hole in binary black hole simulations. By considering a sequence of binaries at higher mass ratios, we approach the...
Dec 10, 2020
Modular covariance for photons and gravitons in a Casimir box
The Casimir effect consists in a force between two conducting plates separated by a small distance due to the non-vanishing vacuum expectation value of the energy of the electromagnetic field...
Dec 10, 2020