DPG Phi
Verhandlungen
Verhandlungen
DPG

Mainz 2017 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

A: Fachverband Atomphysik

A 20: Poster Session I

A 20.10: Poster

Tuesday, March 7, 2017, 17:00–19:00, P OG1

Spectroscopy of discrete solitons in Coulomb crystals — •Miriam Bujak1, Jonathan Brox1, Philip Kiefer1, Haggai Landa2, and Tobias Schaetz11Atom-, Molekül- und optische Physik, Physikalisches Institut, Universität Freiburg, Hermann-Herder-Str. 3, 79104 Freiburg — 2LPTMS, Université Paris Sud, Orsay, France

We study structural defects (solitons) which are formed during laser triggered first order phase transition from a cloud of Mg-ions to a Coulomb crystal in a Paul trap [1]. The formation of kink configurations as well as the lifetime of such structural defects are experimentally investigated. We study the dependence on parameters, such as laser cooling (-Γ/2) and heating (+Γ/10) rate, the duration of the process to optimize the kink creation propability and explore the relevant time scales of the formation mechanism during the phase transition. We present first results of kink spectroscopy, i.e. of localized vibrational eigenmodes of the Coulomb crystal [2].

[1] M. Mielenz et al., Phys. Rev. Lett. 110, 133004 (2013)

[2] J. Brox et al., in preparation

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2017 > Mainz