Physics Club - Jack Harris, Yale University, “Measuring the knots and braids of non-Hermitian oscillators”

Event time: 
Monday, April 29, 2024 - 3:30pm to 4:30pm
Sloane Physics Laboratory (SPL), Room 57 See map
217 Prospect Street
New Haven, CT 06511
Event description: 

It may seem unlikely that rich mathematical structures remain to be uncovered in classical harmonic oscillators. Nevertheless, oscillators that combine non-reciprocity and loss have provided a number of surprises in recent years. I will describe a collaborative effort (between my group and Nick Read’s group) that has led to a concise understanding of why these systems naturally exhibit braids, knots, and other topological structures. I will also present measurements of these structures (using a cavity optomechanical system), and will describe their potential application in various settings. This will be a pedagogical introduction to all of these topics, with lots of pictures and videos!