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cond-mat.str-el2025
2D coherent spectroscopy signatures of exciton condensation in TaNiSe
Jiyu Chen, Jernej Mravlje, Denis Golež +1
We show that the nonlinear optical response probed by two-dimensional coherent spectroscopy (2DCS) can discriminate between excitonic and lattice driven order. In the excitonic reg…
cond-mat.str-el2025
Ultrafast Electronic Structure Engineering in 1-TaS: Role of Doping and Amplitude Mode Dynamics
J. Jayabalan, Jiyu Chen, Laura Pätzold +12
In strongly correlated transition metal dichalcogenides, an intricate interplay of polaronic distortions, stacking arrangement, and electronic correlations determines the nature of…
cond-mat.str-el2025
Amplitude mode in two-dimensional coherent spectroscopy of weak-coupling antiferromagnets
Jiyu Chen, Naoto Tsuji, Philipp Werner
Two-dimensional coherent spectroscopy (2DCS) provides insights into the nonlinear response of correlated lattice systems. We simulate multipulse excitations in the Hubbard model us…