Sub-cycle multidimensional spectroscopy of strongly correlated materials

• URL: http://arxiv.org/abs/2208.04647v1
• Date: Tue, 9 Aug 2022 10:16:50 GMT
• Title: Sub-cycle multidimensional spectroscopy of strongly correlated materials
• Abstract summary: Sub-laser-cycle electron response is attractive as a tool for ultrafast manipulation of matter at PHz scale. We introduce a new type of non-linear multidimensional spectroscopy, which allows us to unravel the sub-cycle dynamics. Our findings open a way to a regime of imaging and manipulating strongly correlated materials at optical rates.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Strongly correlated solids are extremely complex and fascinating quantum systems, where new states continue to emerge and where interaction with light may trigger interplay between them. In this interplay, sub-laser-cycle electron response is particularly attractive as a tool for ultrafast manipulation of matter at PHz scale. Here we introduce a new type of non-linear multidimensional spectroscopy, which allows us to unravel the sub-cycle dynamics of strongly correlated systems interacting with few-cycle infrared pulses and the complex interplay between different correlated states evolving on the sub-femtosecond time-scale. For the two-dimensional Hubbard model under the influence of ultra-short, intense electric field transients, we demonstrate that our approach can resolve pathways of charge and energy flow between localized and delocalized many-body states on the sub-cycle timescale and follow the creation of a highly correlated state surviving after the end of the laser pulse. Our findings open a way to a regime of imaging and manipulating strongly correlated materials at optical rates, beyond the multi-cycle approach employed in Floquet engineering of quantum systems.

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