Editing Bubble fusion (section)

{{short description|Nuclear fusion reaction}}
[[Image:Sonoluminescence.png|right|600px|thumb|Left to right: formation of bubble; slow expansion; quick and sudden contraction; purported fusion event.]]
'''Bubble fusion''' is the non-technical name for a [[nuclear fusion]] reaction hypothesized to occur inside extraordinarily large collapsing gas bubbles created in a liquid during [[Sonic cavitation|acoustic cavitation]]. The more technical name is '''sonofusion'''.<ref name="Chang-practical">{{cite news
  |first = Kenneth
  |last  = Chang
  |quote = Dr. Putterman's approach is to use sound waves, called sonofusion or bubble fusion, to expand and collapse tiny bubbles, generating ultrahot temperatures.
  |title = Practical Fusion, or Just a Bubble?
  |url   = https://www.nytimes.com/2007/02/27/science/27fusion.html?8dpc
  |work=The New York Times
  |date  = February 27, 2007
  |access-date = 2007-02-27
}}</ref>

The term was coined in 2002 with the release of a report by [[Rusi Taleyarkhan]] and collaborators that claimed to have observed evidence of sonofusion. The claim was quickly surrounded by controversy, including allegations ranging from experimental error to academic fraud. Subsequent publications claiming independent verification of sonofusion were also highly controversial.

Eventually, an investigation by [[Purdue University]] found that Taleyarkhan had engaged in falsification of independent verification, and had included a student as an author on a paper when he had not participated in the research. He was subsequently stripped of his professorship. One of his funders, the [[Office of Naval Research]] reviewed the report by Purdue and barred him from federal funding for 28 months.<ref name=reich />