Speaker
Description
While great progress has been made over the years to understand the physics of gapped spin liquids, their unambiguous experimental detection has remained difficult. This situation led to the development of several proposals to identify such topologically ordered states. One particularly interesting approach suggests using pump-probe spectroscopy to detect the non-trivial braiding statistics of the spin liquid gapped excitations. With this proposal in mind and considering the toric code ladder in a magnetic field, we evaluate time-dependent correlation functions revealing the presence of semionic excitations in the toric code spin liquid phase. Using time-dependent matrix product state simulations in combination with hard-core hopping models, we carefully identify the processes leading to the accumulation of the semionic statistical braiding phase. We contrast these results with the behavior of the same dynamical correlator evaluated in the magnetically polarized phase where these unconventional excitations are absent.
| Keyword-1 | Quantum Spin Liquid |
|---|---|
| Keyword-2 | Magnetic Systems |
| Keyword-3 | Fractionalized Excitations |