Image of the Week: trilobites

Today’s Image of the Week comes from Mapping trilobite state signatures in atomic hydrogen by Jesús Pérez-Ríos, Matthew T Eiles and Chris H Greene.  In their Letter the researchers study the spectroscopy of single Rydberg excitations to a trilobite state (can you see where the name comes from?) in a high density ultracold environment.  These states have very short lifetimes and large electric dipoles.

Normalized spectra of a single hydrogen Rydberg atom with n = 20 in a high density backgro [...]

Normalized spectra of a single hydrogen Rydberg atom with n = 20 in a high density background gas of hydrogen at ρ = 1015 cm−3. Only detunings higher than 25 MHz, where the quasistatic approximation is accurate, are shown. The quasistatic results for the line shape is depicted by the solid blue line, whereas the red line represents the line shape assuming a two-body quasistatic approach (see equation (10) in the text for details). Each of the peaks of the spectra correlates with the existence of local extrema in the Rydberg-perturber interaction potential, from Jesús Pérez-Ríos et al 2016 J. Phys. B: At. Mol. Opt. Phys. 49 14LT01 © IOP Publishing, All Rights Reserved.

JPhysB is currently in the process of publishing a Special Issue on Rydberg Atomic Physics if you want to learn more about Rydberg states of all kinds.


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Front and article image taken from Jesús Pérez-Ríos et al 2016 J. Phys. B: At. Mol. Opt. Phys. 49 14LT01, © IOP Publishing, All Rights Reserved.



Categories: Journal of Physics B: Atomic, Molecular and Optical Physics

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