Xiaoping JIA

Xiaoping JIA is a Professor at Gustave Eiffel University, affiliated with the Langevin Institute. His work bridges acoustics, granular physics, and geophysics, with a focus on understanding wave propagation, frictional dynamics, and seismic triggering mechanisms in complex media.

• PhD in Physical Acoustics from Pierre and Marie Curie University (Paris 6)
• B.Sc. in Physics from Nanjing University

His research explores:

• Multi-scale granular acoustics: Investigating how ultrasound interacts with granular materials to induce flow and measure internal states
• Nonlinear wave behavior: Time-reversal focusing, velocity weakening/strengthening, and scattering in heterogeneous media
• Dynamic triggering mechanisms: Linking seismic waves to landslides, slope instabilities, and frictional failure

Key article trends include:

• Developing ultrasonic monitoring for granular compaction and damage
• Modeling acoustic lubrication at grain contacts
• Characterizing stick-slip dynamics with high-resolution acoustic emission analysis
• Simulating two-time scale granular flow under vibro-acoustic stress

Publications span geophysical journals (PNAS, JGR, GRL) and physics/soft matter outlets (Phys. Rev. E, Soft Matter, Europhys. Lett.), emphasizing ultrasound as a tool for probing granular rheology and failure precursors.