Super Fluid

SUPER FLUID
Super fluid was originally discovered in liquid helium,by PYOTR KAPITSA & JOHN F.ALLEN. The theory of superfluidity was developed by Lev Landau. Super-fluidity occurs in two isotopes of Helium [Helium-3 & Helium-4] when they are liquified   by cooling to cryogenic temperatures i.e, T=-269℃ or 4.15K . When cooled further 2.17K or -271℃ called its Lambda point,a remarkable thing occurs ,the liquid density drops, and the liquid becomes a zero viscosity"SUPER-FLUID"


The characteristics of superfluid



Superfluid has some weird characters that doesn't happen in real time, I mean in our day to day life.

 This weird character of a liquid can't  be explained by our normal physics and classical laws. It can be explained clearly by a renowned model/law called QUANTUM MECHANICS .
John Saunders explains how a fluid can flow without friction...He explains the reason behind the weird behavior of super fluid.
And one more thing is ,if u had a cup of liquid helium and gave it a swirl the Helium would spin forever.....ever...


  The above video is a simulated version of swirl of liquid helium.

    It is also a property of various other exotic states of matter theorized to exist in astrophysics, high energy physics, and theories of quantum gravity. The phenomenon is related to Bose Einstein condensation, but neither is a specific type of the other: not all Bose-Einstein condensates can be regarded as superfluids, and not all superfluids are Bose–Einstein condensates. 
Application of superfluid 
  1. In High energy physics and quantum gravity.
Superfluid vacuum theory  (SVT) is an approach in theoretical physics and quantum mechanics where the physical vacuum is viewed as superfluid . 
                                                  CMS Higgs-event.jpg
Simulated Large Hadron Collidor  CMS particle detector data depicting a Higgs Boson produced by colliding protons decaying into hadron jets and electrons
      2.In Astrophysics
                                                  
The idea that superfluidity exists inside neutron stars was first proposed by Arkady Migdal.
It is expected that nucleons in a neutron star at sufficiently high density and low temperature can also form Cooper pairs because of the long-range attractive nuclear force and lead to superfluidity and
superconductivity. 




 This is my first post in BLOGGER ,
FROM                     
A.S.PRAJWAL HIREMATH    .

 

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