Probing anomalous relaxation by coherent multidimensional optical spectroscopy

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dc.creatorSanda, F.
dc.creatorMukamel, S.
dc.date2007-01-11
dc.date.accessioned2026-07-07T07:47:55Z
dc.date.available2026-07-07T07:47:55Z
dc.descriptionWe propose to study the origin of algebraic decay of two-point correlation functions observed in glasses, proteins, and quantum dots by their nonlinear response to sequences of ultrafast laser pulses. Power-law spectral singularities and temporal relaxation in two-dimensional correlation spectroscopy (2DCS) signals are predicted for a continuous time random walk model of stochastic spectral jumps in a two level system with a power-law distribution of waiting times $ψ(t)\sim t^{-α-1}$. Spectroscopic signatures of stationary ensembles for $1<α<2$ and aging effects in nonstationary ensembles with $0<α<1$ are identified.
dc.identifierhttps://arxiv.org/abs/cond-mat/0701255
dc.identifierhttp://arxiv.org/abs/cond-mat/0701255
dc.identifierPhys. Rev. Lett. 98, 080603 (2007)
dc.identifierdoi:10.1103/PhysRevLett.98.080603
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/124328
dc.subjectSoft Condensed Matter
dc.subjectStatistical Mechanics
dc.titleProbing anomalous relaxation by coherent multidimensional optical spectroscopy
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