Nonlinear spectroscopy of controllable many-body quantum systems
- Author(s): Gessner, M
- Schlawin, F
- Häffner, H
- Mukamel, S
- Buchleitner, A
- et al.
Published Web Locationhttps://doi.org/10.1088/1367-2630/16/9/092001
© 2014 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. We establish a novel approach to probing spatially resolved multitime correlation functions of interacting many-body systems, with scalable experimental overheads. Specifically, designing nonlinear measurement protocols for multidimensional spectra in a chain of trapped ions with single-site addressability enables us, for example, to distinguish coherent from incoherent transport processes, to quantify potential anharmonicities, and to identify decoherence-free subspaces.