Here is a paper which assumes the temperature of thermal motion of Dirac sea equal the temperature of Cosmological Microwave Background... if there is a valid mathematical connection, then at least the prima facie case has been made.
http://fqxi.org/data/forum-attachments/A_Naive_Model_of_The_Cosmological_Vac uum_Energy_Density_Dirac_Sea.pdf There are a couple of applications that come to mind. Remember the Penzias "ear" http://ffden-2.phys.uaf.edu/212_fall2003.web.dir/eli_sonafrank/penzias_and_w ilson.jpg Now, merge that device, merged with Project Echo - large Mylar reflectors in orbit... http://en.wikipedia.org/wiki/Echo_satellite ... and we can throw in a low power version of Stewart's Doppler radar to boot, which is aimed at the Mylar reflector :-) The idea is that one uses microwaves of the correct wavelength, at low duty pulsation, to activate several cubic kilometers of "vacuum" between the ground and the orbiting reflector in space - so that the there is a high-Q ring after each pulse - which is then reflected back to earth to be collected in a modified "ear" antenna... This is somewhat similar to the idea of beaming back solar power, as in this story http://www.wired.com/2014/03/space-solar/ In fact, microwaves could be amplified that way as well - but with far fewer solar cells to first create a microwave beam, and then with "beam amplification" via Dirac/CMB oscillation between two large reflectors, before being sent to the ground. This would be kind of like a giant maser in space, requiring only a fraction of the solar cells in the Navy design. The maser could reflect a beam back and forth over hundreds of km, hopefully with CMB amplification on every bounce.
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