Colloquium – Local Topological Quantum Codes: September 12, 2024

Sep. 12, 2024—September 12, 2024 (Thursday), 4:10 pm David Penneys- The Ohio State Quantum information is encoded in a state vector of a tensor product of Hilbert spaces. Quantum error correction codes are useful for correcting errors when transporting quantum information through a noisy channel. In this talk, we will discuss a family of 2D ‘‘local topological’’...

Read more

Colloquium – The Black Hole Photon Ring: August 29, 2024

Aug. 29, 2024—August 29, 2024 (Thursday), 4:10 pm Alex Lupsasca – Vanderbilt University What does a black hole look like? The first images of the supermassive black hole M87* display a bright ring encircling the event horizon, which appears as a dark patch in its surrounding emission. But Einstein’s theory of general relativity predicts that within this...

Read more