Department Chair, Physics Professor, Physics cxy11@psu.edu Office Phone: 814-898-6309 Office Location: 118 Witkowski Mailing Address: 1 PRISCHAK BUILDING BEHREND ERIE, PA 16563 Bottom FieldsBio Education B.A. Physics, Cornell University M.S. Physics, University of Illinois at Urbana Champaign Ph. D., University of Illinois at Urbana Champaign Experience Postdoctoral Research Fellow, University of Pittsburgh Department of Physics and Astronomy and Material Sciences Department Postdoctoral Research Fellow, University of Toronto, Department of Physics Honors Penn State Behrend Council of Fellows Excellence in Research Award 2001 Penn State Behrend Council of Fellows Excellence in Teaching Award 2002 Teaching Specialties Physics Research Interests I am a theoretical statistical physicist. My research focuses on polymer dynamics theory, pattern formation dynamics and biophysics. Most recently I have studied the role of reactions in stabilizing polymer interfaces, the formation of domains after quenches into thermodynamically unstable regions and motion of vesicles in nerve synapses. Funded Projects and Grants RUI: Modeling of Reactive Compatibilization in Polymer Blends. National Science Foundation. $112,000, March 2000-February 2004. Petroleum Research Foundation Summer Fellowship Grant. Wu, X.L. (principal investigator) and C. Yeung (co-investigator). American Chemical Society. $8,000, summer 2003. Competing Length Scales in Laser Induced Melting. Research Corporation, $22,688, November 1996-November 1999. Publications Direct Test of Gaussian Approximation in Phase Ordering Dynamics, Physical Review E - June 4, 2018Stick-and-Diffuse and Caged diffusion: A Comparison of Two Models of Synaptic Vesicle Motion - 2007Biophysical J. Stick-and-Diffuse and Caged Diffusion: A Comparison of Two Models of Synaptic Vesicle Dynamics - April (2nd Quarter/Spring), 2007Renormalization Group Analysis of Polymer Cyclization with Non-Equilibrium Initial Conditions - September, 2006Swimming Efficiency of Bacterium Escherichia coli - September, 2006Proceedings of the National Academy of Sciences, Swimming efficiency of bacterium Escherichia coli - September 12, 2006Relation Between Cyclization of Polymers with Different Initial Conditions - February, 2006Cyclization of Rouse Chains at Long and Short Time Scales - 2005Probing Vesicle Dynamics in Single Hippocampal Synapses - 2005Modeling Reactive Compatibilization of a Binary Blend with Interacting Particles - 2003Molecular Dynamics Simulation of Reactive Compatibilization on Polymer Blends. - 2003Universal Distribution of Centers and Saddles in Two-Dimensional Turbulence - 2001Formation of Interfaces in Incompatible Polymer Blends: A Dynamical Mean Field Study - 1999The Rotating Bucket of Sand: Experiment and Theory - 1999Triangular Anisotropics in Driven Diffusive Systems: Reconciliation of Up and Down - 1999Metastability of a Granular Surface in a Spinning Bucket - 1998Anisotropic Fluctuations in Ordered Copolymer Phases - 1996Bounds on the Decay of the Autocorrelation in Phase Ordering Dynamics. - 1996Early time dynamics in phase ordering dynamics, Phys. Rev. E - December, 1995Breakdown of Linear Dynamics in Phase Ordering Kinetics - 1995Temporal Fluctuations and Hurst Exponents of Goldstone and Massive Modes - September, 1994Phase Separation Dynamics in a Concentration Gradient - August, 1994Theoretical Models for Grafted Homopolymers in Poor Solvents: Observations of Dimple Surfaces, Colloids & Surfaces - June, 1994Possibilities and Limitations of Gaussian Closure Approximation for Phase Ordering Dynamics - April (2nd Quarter/Spring), 1994Lower Critical Ordering Temperature in Diblock Dopolymer Melts - March, 1994Pattern Formation in Laser Induced Melting, Physical Review E - March, 1994Internal Wetting in Three Component Polymer Blends - January (1st Quarter/Winter), 1994Lateral Instabilities in a Grafted Layer in a Poor Solvent - April (2nd Quarter/Spring), 1993Surface Driven Instability and Enhanced Relaxation in the Dynamics of a Nonequilibrium Interface. - March, 1993Asymptotic Behavior of Viscous Fingering Patterns in Circular Geometry - February, 1993The Behavior of Amphiphilic Comb Copolymers in Oil/Water Mixtures: A Molecular Dynamics Study - September, 1992Phase Ordering Dynamics in a Driven Diffusive System - August, 1992Adsorption of Multi-Block Chains at Liquid-Liquid Interfaces - July (3rd Quarter/Summer), 1992Study of Internal Modes of a "Living Polymer" by Transient Electric Birefringence - March, 1992Adsorption of Copolymer Chains at Liquid-Liquid Interfaces: The Effect of Sequence Distribution - February, 1992Perturbing Hele-Shaw Flow with a Small Gap Gradient - February, 1992Conservative Dynamics, Phase Ordering and Stretched Exponential Decays - December, 1990Two-Time Correlations, Self-Averaging and an Analytically Solvable Model of Phase Ordering Dynamics - December, 1990Dense-Branching Morphology and the Radial Hele-Shaw Cell Driven at a Constant Flux - January (1st Quarter/Winter), 1990The Pre-Asymptotic Dynamical Exponent in Conserved Order Parameter Phase Ordering Dynamics, Physical Review B - 1989Explicit Construction of Steady State of a Model of Chemical Turbulence - January (1st Quarter/Winter), 1989Cell Dynamical System Study of Phase Separation Dynamics - December, 1988Scaling and the Small Wavevector Limit of the Form Factor in Phase Ordering Dynamics - August, 1988A Cell Dynamical System Model of Chemical Turbulence - December, 1987A Conjecture on Nonlocal Random Tight Binding Models - November, 1987The Coherent Potential Approximation Applied to a System with Long Range Potentials - August, 1986 Education Ph D, Physics, University of IlinoisMS, Physics, University of Illinois at Urbana-ChampaignBA, Physics, Cornell University
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