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Bulk observables in JT gravity
Using a definition of bulk diff-invariant observables, we go into the bulk of 2d Jackiw-Teitelboim gravity. By mapping the computation to a Schwarzian path integral, we study exact bulk correlation...
May 21, 2020
The Python's Lunch: geometric obstructions to decoding Hawking radiation
Harlow and Hayden [ arXiv:1301.4504] argued that distilling information out of Hawking radiation is computationally hard despite the fact that the quantum state of the black hole and its radiation...
May 21, 2020
Casimir and free energy for free fields and holographic theories in 2+1 on curved spaces
We investigate putting 2+1 free and holographic theories on a product of time with a curved compact 2-d space. We then vary the geometry of the space, keeping the area...
May 26, 2020
Quantum homeopathy works: Efficient unitary designs with a system-size independent number of non-Clifford gates
Many quantum information protocols require the implementation of random unitaries. Because it takes exponential resources to produce Haar-random unitaries drawn from the full n-qubit group, one often resorts to t-designs...
May 27, 2020
Nonlinear dynamical tides in white dwarf binaries
Compact white dwarf (WD) binaries are important sources for space-based gravitational-wave (GW) observatories, and an increasing number of them are being identified by surveys like ELM and ZTF. We study...
May 28, 2020
Conformal Geometry of Null Infinity, including gravitational waves
Since the seminal work of Penrose, it has been understood that conformal compactifications (or "asymptotic simplicity") is the geometrical framework underlying Bondi-Sachs' description of asymptotically flat space-times as an asymptotic...
May 28, 2020
On the classification of topological phases
There is a rich interplay between higher algebra (category theory, algebraic topology) and condensed matter. I will describe recent mathematical results in the classification of gapped topological phases of matter...
Jun 01, 2020
The Weak Gravity Conjecture, Naturalness, and Discrete Gauge Symmetries
The Weak Gravity Conjecture, Naturalness, and Discrete Gauge Symmetries
Jun 02, 2020
Reinforcement Learning assisted Quantum Optimization
We propose a reinforcement learning (RL) scheme for feedback quantum control within the quantum approximate optimization algorithm (QAOA). QAOA requires a variational minimization for states constructed by applying a sequence...
Jun 05, 2020