Dr. Gregory Ryskin

Associate Professor

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Biography

Gregory Ryskin is an associate professor in the Department of Chemical and Biological Engineering at Northwestern University. He holds Ph.D. degrees in Chemical Engineering from the California Institute of Technology and Theoretical Physics from St. Petersburg Polytechnic Institute. His research interests span fluid dynamics, polymer physics, Brownian motion, liquid crystals, and stochastic processes, with an evolving focus that began in geology and geophysics around 2000. Ryskin's current research is centered on cosmology, where he explores the implications of vacuum energy, cosmic repulsion, and the historical dynamics of Earth's magnetic field and its geological consequences. His publications include important contributions to Astroparticle Physics and Physics Letters, where he has discussed themes such as Hawking radiation and mass extinctions related to methane-driven oceanic eruptions. Ryskin has a longstanding interest in the theoretical underpinnings of physical processes affecting both contemporary phenomena and historical geological events.

Research Interests

Requirements for Northwestern University

Doctorate Program
Requirements
GPA Requirement
Required:3
TOEFL
Total
Required:90
IELTS
Overall
Required:7
Prerequisites
U.S. Bachelor's degree or equivalent
Application Checklist
  • Online application
  • Transcripts
  • Letters of recommendation
  • Statement of purpose
  • Resume/CV
  • TOEFL/IELTS scores (if applicable)
Specialization Notes

Standard PhD requirements for TGS departments including Chemistry, Physics, and Sociology.