Vacuum Phase Transition?

[votefornimitz]

Being the authority on cosmology at my school, i was reading about it when i came across the term... Could somone go in depth on what it is.... <div class="Discussion_UserSignature"> <span style="color:#993366">In the event of a full scale nuclear war or NEO impact event, there are two categories of underground shelters available to the public, distinguished by depth underground: bunkers and graves...</span> </div>

 

[Saiph]

got any context for me? <br /><br />My guess off hand has to deal with phase transitions of materials from one phase to another in a vacuum (i.e. low pressure environment).<br /><br />Other than that...maybe the trigger of inflation, when the forces seperated out, releasing lots o potential "vacuum" energy, causing a rapid increase in the energy driving the expansion of the universe. <div class="Discussion_UserSignature"> <p align="center"><font color="#c0c0c0"><br /></font></p><p align="center"><font color="#999999"><em><font size="1">--------</font></em></font><font color="#999999"><em><font size="1">--------</font></em></font><font color="#999999"><em><font size="1">----</font></em></font><font color="#666699">SaiphMOD@gmail.com </font><font color="#999999"><em><font size="1">-------------------</font></em></font></p><p><font color="#999999"><em><font size="1">"This is my Timey Wimey Detector.  Goes "bing" when there's stuff.  It also fries eggs at 30 paces, wether you want it to or not actually.  I've learned to stay away from hens: It's not pretty when they blow" -- </font></em></font><font size="1" color="#999999">The Tenth Doctor, "Blink"</font></p> </div>

 

[kmarinas86]

http://www.science-one.org/Big-Rip-5478030.html<br /><font color="yellow">A major component of the physical quantum vacuum consists of virtual <br />electrons frothing and bubbling at the Fermi surface edge of the Dirac <br />negative energy sea. This is because of the Pauli exclusion principle <br />that only none or one electron per quantum state. A virtual electron <br />pops out of the vacuumÒs Fermi surface leaving a hole behind. The hole <br />is the virtual positron. The result is a Óvirtual electron-positron <br />pair.Ô However, the virtual electron and the virtual positron attract <br />because they have opposite charges and they are exchanging virtual <br />photons. Therefore, some of them form a more stable bound state. An <br />enormous number of these virtual pairs Bose-Einstein condense into the <br />same center of mass quantum wave packet forming the ÓVacuum Coherence <br />FieldÔ (AKA ÓInflation FieldÔ). This is a dynamic steady state of <br />detailed balance in which there is a continual inflow and outflow of <br />virtual pairs into and out of this giant quantum or Ómacro-quantumÔ <br />Ósuperfluid.Ô <b>Essentially this is a vacuum phase transition, similar to <br />the BCS transition from a normal metal to an electrical superconductor, <br />from the globally flat micro-quantum electrodynamic vacuum without any <br />gravity at all to the curved macro-quantum electrodynamic vacuum with <br />emergent gravity.</b></font><br />ehh...

 

[votefornimitz]

Thanks kmar, you are good for somthing other the crop circle picks. <div class="Discussion_UserSignature"> <span style="color:#993366">In the event of a full scale nuclear war or NEO impact event, there are two categories of underground shelters available to the public, distinguished by depth underground: bunkers and graves...</span> </div>