ExcimersHe2*as Tracers of Quantum Turbulence inHe<mml:mprescripts/><mml:none/>4in theT=0Limit

2013/02/28 by D. E. Zmeev, F. Pakpour, Fatemeh Pakpour +9 · 2 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Bar (unit) #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Metastability #Molecule #Physics #Quantum mechanics #Quantum, superfluid, helium dynamics #Superfluid helium-4 #Superfluidity #Thermodynamics #Vortex #cond-mat.other #cond-mat.supr-con #physics.flu-dyn

paper · pdf · doi:10.1103/physrevlett.110.175303

published as Phys. Rev. Lett. 110, 175303 (2013) · 5 pages, 3 figures

openalex publication_date 2013/04/26 · arxiv created 2013/05/01 · arxiv updated 2013/05/02 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

We have studied the interaction of metastable ⁴He₂^* excimer molecules with quantized vortices in superfluid ⁴He in the zero temperature limit. The vortices were generated by either rotation or ion injection. The trapping diameter of the molecules on quantized vortices was found to be 96\ifmmode±\else\textpm\fi6 nm at a pressure of 0.1 bar and 27\ifmmode±\else\textpm\fi5 nm at 5.0 bar. We have also demonstrated that a moving tangle of vortices can carry the molecules through the superfluid helium.

Citations

• XLI. On the ultramundane corpuscules of Le Sage, also on the motion of rigid solids in a liquid circulating irrotationally through perforations in them or in a fixed solid
• Trace Detection of Metastable Helium Molecules in Superfluid Helium by Laser-Induced Fluorescence
• Continuous flow apparatus for preparing isotopically pure 4He

Cited by

• The motion of tracer particles in turbulent superfluid ⁴He down to the zero-temperature limit
• Apparatus to visualize flows in superfluid ⁴He below 1 K