Applicants must possess a doctorate in Physics, Applied Physics, Engineering Physics, or a closely related field with specialization in geophysics, continuum mechanics, fluid dynamics, rheology, soft condensed matter, structure of materials, granular materials, or related areas. D. in physics, applied physics, engineering physics, or a closely related field with specialization in geophysics, continuum mechanics, fluid dynamics, rheology, soft condensed matter, structure of materials, granular materials or related areas.