Two-dimensional double-quantum spectra reveal collective resonances in an atomic vapor

Abstract

We report the observation of double-quantum coherence signals in a gas of potassium atoms at twice the frequency of the one-quantum coherences. Since a single atom does not have a state at the corresponding energy, this observation must be attributed to a collective resonance involving multiple atoms. These resonances are induced by weak inter-atomic dipole-dipole interactions, which means that the atoms cannot be treated in isolation, even at a low density of $10^{12}$ cm${}^{-3}$.

References in corpus (5)

• A Versatile Ultra-Stable Platform for Optical Multidimensional Fourier-Transform Spectroscopy
• Many-body two-quantum coherences in semiconductor nanostructures
• All-optical retrieval of the global phase for two-dimensional Fourier-transform spectroscopy
• Two-dimensional correlation spectroscopy of two-exciton resonances in semiconductor quantum wells
• Two-dimensional Fourier-transform Spectroscopy of Potassium Vapor

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