3 papers
cond-mat.str-el2024
AC-Stark Spectroscopy of Interactions between Moiré Excitons and Polarons
B. Evrard, H. S. Adlong, A. A. Ghita +6
We use nonlinear pump-probe spectroscopy to study optical excitations in a charge-tunable MoSe\WS moiré heterostructure. An intense red-detuned laser pulse creates a photon…
cond-mat.mes-hall2024
Parametric instability in a magnomechanical system
Takahiro Uto, Daigo Oue
We study parametric instability in a magnomechanical system, specifically examining magnon tunneling between moving ferromagnetic insulators. Our analysis reveals that quantum fluc…
cond-mat.mes-hall2023
Interaction induced AC-Stark shift of exciton-polaron resonances
Takahiro Uto, Bertrand Evrard, Kenji Watanabe +3
Laser induced shift of atomic states due to the AC-Stark effect has played a central role in cold-atom physics and facilitated their emergence as analog quantum simulators. Here, w…