Tomorrow's lecture looks at an amazing experiment on the space shuttle that was used to determine one of the critical exponents for the superfluid transition to 6 significant figures. I then introduce the idea of an order parameter and broken symmetry. A nice simple illustration of the latter is the problem of optimising the total lengths of the roads joining four cities at the corner of a square. The solution can be seen in the shape of soap films and in the honeycomb structure found in bee hives.
Monday, May 18, 2009
Towards broken symmetry
Tomorrow's lecture looks at an amazing experiment on the space shuttle that was used to determine one of the critical exponents for the superfluid transition to 6 significant figures. I then introduce the idea of an order parameter and broken symmetry. A nice simple illustration of the latter is the problem of optimising the total lengths of the roads joining four cities at the corner of a square. The solution can be seen in the shape of soap films and in the honeycomb structure found in bee hives.
Subscribe to:
Post Comments (Atom)
-
Is it something to do with breakdown of the Born-Oppenheimer approximation? In molecular spectroscopy you occasionally hear this term thro... -
This week Nobel Prizes will be announced. I have not done predictions since 2020 . This is a fun exercise. It is also good to reflect on w... -
Nitrogen fluoride (NF) seems like a very simple molecule and you would think it would very well understood, particularly as it is small enou...
No comments:
Post a Comment