Author:
Matsubara Takuya,Sugawa Seiji,Chauhan Vikas Singh,Bharti Vineet,Maity Arnab,Mahesh Tirumalasetty Panduranga,Tomita Takafumi,de Léséleuc Sylvain,Ohmori Kenji
Abstract
We realized ~1011 cm-3 high density Rydberg gas of ultracold 87Rb atoms by ultrafast excitation using improved picosecond pulse laser system, and observed the spontaneous ionization induced by Rydberg-Rydberg interactions.