Duane Physics Room G126

Drive versus Quench – Studying Novel Photonic States of Matter or Elementary Excitations in Superconductors by Time-Resolved Spontaneous Raman Scattering

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Abstract: There are two fundamentally different ways to carry out a time resolved inelastic light scattering experiment: Firstly, one can drive elementary excitations and form new photonic states of matter not intrinsic to the ground state of the investigated material. Secondly, we can quench the free energy “Mexican-Hat Potential” of order in condensed matter leading to the population of the lowest-energy stable excitation characteristic for the ordered state.