Related Experiment Video
Updated: Jul 13, 2026

Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown
Published on: February 14, 2014
Observation of a one-dimensional Tonks-Girardeau gas
Toshiya Kinoshita1, Trevor Wenger, David S Weiss
1Physics Department, Pennsylvania State University, University Park, PA 16802, USA.
Abstract:
We report the observation of a one-dimensional (1D) Tonks-Girardeau (TG) gas of bosons moving freely in 1D. Although TG gas bosons are strongly interacting, they behave very much like noninteracting fermions. We enter the TG regime with cold rubidium-87 atoms by trapping them with a combination of two light traps. By changing the trap intensities, and hence the atomic interaction strength, the atoms can be made to act either like a Bose-Einstein condensate or like a TG gas. We measure the total 1D energy and the length of the gas. With no free parameters and over a wide range of coupling strengths, our data fit the exact solution for the ground state of a 1D Bose gas.
More Related Videos
Related Concept Videos
Kinetic Molecular Theory and Gas Laws Explain Properties of Gas Molecules
Real Gases: Effects of Intermolecular Forces and Molecular Volume Deriving Van der Waals Equation
Kinetic Theory of an Ideal Gas
The number of molecules in one mole is called Avogadro's number...
Atomic Absorption Spectroscopy: Atomization Methods
The Kinetic Model of Gases
Adsorption of Gases on Solids

