Related Experiment Video
Updated: Sep 20, 2025

Fabrication of Uniform Nanoscale Cavities via Silicon Direct Wafer Bonding
Published on: January 9, 2014
Experimental realization of one dimensional helium
Adrian Del Maestro1,2,3, Nathan S Nichols4, Timothy R Prisk5
1Department of Physics and Astronomy, University of Tennessee, Knoxville, TN, 37996, USA. Adrian.DelMaestro@utk.edu.
Abstract:
As the spatial dimension is lowered, locally stabilizing interactions are reduced, leading to the emergence of strongly fluctuating phases of matter without classical analogues. Here we report on the experimental observation of a one dimensional quantum liquid of 4He using nanoengineering by confining it within a porous material preplated with a noble gas to enhance dimensional reduction. The resulting excitations of the confined 4He are qualitatively different than bulk superfluid helium, and can be analyzed in terms of a mobile impurity allowing for the characterization of the emergent quantum liquid beyond the Luttinger liquid paradigm. The low dimensional helium system offers the possibility of tuning via pressure-from weakly interacting, all the way to the super Tonks-Girardeau gas of strongly interacting hard-core particles.
More Related Videos
07:48An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions
Published on: June 18, 2020
11:03An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
Related Concept Videos
Heat Capacities of an Ideal Gas II
Heat Capacities of an Ideal Gas III
Heat Capacities of an Ideal Gas I
Molar heat capacity quantifies the ratio of the amount of heat added (or removed) to increase (or decrease) the...
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...
Applications of the Ideal Gas Law: Molar Mass, Density, and Volume