R. G. Herb Condensed Matter Seminars |
Events During the Week of April 26th through May 3rd, 2026
Monday, April 27th, 2026
- No events scheduled
Tuesday, April 28th, 2026
- No events scheduled
Wednesday, April 29th, 2026
- No events scheduled
Thursday, April 30th, 2026
- A universal model of Floquet operator Krylov Space
- Time: 10:00 am - 6:00 pm
- Place: 5310 Chamberlin
- Speaker: Aditi Mitra, NYU
- Abstract: It is shown that the stroboscopic time-evolution under a Floquet unitary, in any spatial dimension, and of any Hermitian operator, can be mapped to an operator Krylov space which is identical to that generated by the edge operator of the non-interacting Floquet transverse-field Ising model (TFIM) in one-spatial dimension, and with inhomogeneous Ising and transverse field couplings. The latter has four topological phases reflected by the absence (topologically trivial) or presence (topologically non-trivial) of edge modes. It is shown that the Floquet dynamics share certain universal features characterized by how the Krylov parameters vary in the topological phase diagram of the Floquet TFIM with homogeneous couplings. Connections of our results with methods based on orthogonal polynomials on the unit circle are discussed. Applications to slow dynamics of quasi-conserved quantities as well as Anderson localization and the localization-delocalization transition are presented.
- Host: Elio König
Friday, May 1st, 2026
- No events scheduled