Critical Fluctuations in Strongly Coupled Fine Particle Plasmas and Application to Reactive Fields

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The isothermal compressibility of strongly coupled charged particle systems diverges within the one-component plasma model. Previously, the PI of this project pointed out the possibility of its observation as the critical phenomena around the critical point in strongly coupled fine particle plasmas. In this project, the theory has been extended and the conditions for critical density fluctuations have been evaluated in a wide parameter domain and the data obtained in microgravity experiments on the ISS have been analyzed. Another possible origin of critical point in fine particle plasmas has also been shown and the relation to the above mentioned critical point is clarified. For planned experiments on the ground and on ISS, fine particle plasmas in cylindrical discharge tube are analyzed by theory and numerical simulations.