>From wiki http://en.wikipedia.org/wiki/Sonoluminescence : An unusually exotic theory of sonoluminescence, which has received much popular attention, is the Casimir energy theory suggested by noted physicist Julian <http://en.wikipedia.org/wiki/Julian_Schwinger> Schwinger[5] <http://en.wikipedia.org/wiki/Sonoluminescence#cite_note-4#cite_note-4> and more thoroughly considered in a paper by <http://en.wikipedia.org/w/index.php?title=Claudia_Eberlein&action=edit&redl ink=1> Claudia Eberlein[6] <http://en.wikipedia.org/wiki/Sonoluminescence#cite_note-5#cite_note-5> of the University of Sussex <http://en.wikipedia.org/wiki/University_of_Sussex> . Eberlein's paper suggests that the light in sonoluminescence is generated by the vacuum within the bubble in a process similar to Hawking <http://en.wikipedia.org/wiki/Hawking_radiation> radiation, the radiation generated at the event <http://en.wikipedia.org/wiki/Event_horizon> horizon of black holes <http://en.wikipedia.org/wiki/Black_hole> . According to this vacuum energy explanation, since quantum theory holds that vacuum contains virtual <http://en.wikipedia.org/wiki/Virtual_particle> particles, the rapidly moving interface between water and gas converts virtual photons into real photons. This is related to the Unruh <http://en.wikipedia.org/wiki/Unruh_effect> effect or the Casimir effect <http://en.wikipedia.org/wiki/Casimir_effect> . If true, sonoluminescence may be the first observable example of quantum vacuum radiation <http://en.wikipedia.org/wiki/Vacuum_state> . The argument has been made that sonoluminescence releases too large an amount of energy and releases the energy on too short a time scale to be consistent with the vacuum energy explanation,[7] <http://en.wikipedia.org/wiki/Sonoluminescence#cite_note-6#cite_note-6> although other credible sources argue the vacuum energy explanation might yet prove to be correct.[8
I think Schwinger was correct in attributing sonoluminescence to Casimir effect but should have concentrated on the rate of change in Casimir geometry by the meniscus of the compressed bubbles in cavitation- the liquid medium is uniform and if conductive makes the bubble essentially equivalent to Casimir plates - I am positing that the acoustic energy used by Energetics and the laser energy being discussed in this thread are both concentrating and rapidly` reshaping the bubble into Casimir geometry - In this scenario very little spatial motion of the trapped gas is needed because like the BLP or MAHG device we may be dealing with equivalent acceleration afforded by the catalyst/change in Casimir force. Even in distilled water you could have a conductive gas layer pressed against the miniscus when the hydrogen and oxygen are disassociated.
