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### Joshua Socolar, Professor of Physics

Prof. Socolar is interested in collective behavior in condensed matter and dynamical systems. His current research interests include:

- Limit-periodic structures, quasicrystals, packing problems, and tiling theory;
- Self-assembly and phases of designed colloidal particles;
- Organization and dynamics of complex networks;
- Topological elasticity of mechanical lattices.

Office Location: | 096 Physics Bldg, Durham, NC 27708 |

Office Phone: | (919) 660-2557 |

Email Address: | |

Web Page: | http://www.phy.duke.edu/~socolar |

**Teaching (Fall 2018):**

- PHYSICS 136.01,
*ACOUSTICS AND MUSIC*Synopsis- Physics 128, TuTh 04:40 PM-05:55 PM

**Teaching (Spring 2019):**

- PHYSICS 363.01,
*THERMAL PHYSICS*Synopsis- Physics 130, WF 08:30 AM-09:45 AM

**Education:**Ph.D. University of Pennsylvania 1987 B.A. Haverford College 1980

**Specialties:**-
Nonlinear dynamics and complex systems

Theoretical condensed matter physics

Biological physics

**Research Interests:***Theoretical Condensed Matter Physics; Nonlinear Dynamics; Systems Biology*Prof. Socolar is interested in the principles that determine collective behavior in condensed matter and dynamical systems. His current research interests include:

- Organization and function of complex dynamical networks, especially genetic regulatory networks;.
- The spatial distribution of stresses granular materials (e.g. bins of sand, coal, pills, or grain) and jamming phenomena;
- Controlling chaos, or understanding feedback mechanisms that can stabilize otherwise unstable ordered behavior in chaotic dynamical systems;
- Quasicrystals, packing problems, and tiling theory.

**Areas of Interest:**Theoretical condensed matter physics

Nonlinear dynamics and control theory

Statistical mechanics in nonequilibrium systems

Complex Boolean networks

Genetic regulatory networks

Aperiodic Tilings

**Keywords:**Algorithms • Animals • Arrhythmias, Cardiac • Biological Clocks • Biological Evolution • Biophysics • Bone and Bones • Boolean networks • Cell Cycle • Cell Differentiation • Cell Physiological Phenomena • Cell Proliferation • Computational Biology • Computer Graphics • Computer Simulation • Condensed matter • Control theory • Cyclin-Dependent Kinases • Cyclins • Data Interpretation, Statistical • Diffusion • Disease Outbreaks • Electrophysiology • Embryo, Nonmammalian • Embryonic Development • Feedback • Feedback, Physiological • G1 Phase • Gastrula • Gene Expression • Gene Expression Regulation • Gene Expression Regulation, Developmental • Gene Expression Regulation, Fungal • Gene Regulatory Networks • Genetic regulatory networks • Granular materials • Growth • Heart • Humans • Logistic Models • Mathematical Computing • Mathematical Concepts • Membrane Potentials • Mesoderm • Models, Biological • Models, Cardiovascular • Models, Chemical • Models, Genetic • Models, Statistical • Models, Theoretical • Mutation • Myocardium • Neural Networks (Computer) • Nonlinear dynamics • Nonlinear Dynamics • Nuclear Reprogramming • Periodicity • Physical Phenomena • Physics • Plant Development • Politics • Population Dynamics • Probability • Proteome • Public Opinion • S Phase • Saccharomyces cerevisiae • Sensitivity and Specificity • Signal Processing, Computer-Assisted • Signal Transduction • Social Support • Statistics as Topic • Systems Theory • Tiling theory • Time Factors • Transcription Factors • Transcription, Genetic • Variations • Ventricular Fibrillation • Yeasts

**Current Ph.D. Students**(Former Students)

**Postdocs Mentored**- Xianrui Cheng (September 01, 2012 - March 01, 2013)
- Volkan Sevim (March, 2008 - August, 2010)
- Bjorn Samuelsson (November, 2005 - August 31, 2007)

**Recent Publications**(More Publications)- Pham, AT; Zhuang, Y; Detwiler, P; Socolar, JES; Charbonneau, P; Yellen, BB,
*Phase diagram and aggregation dynamics of a monolayer of paramagnetic colloids.*, Physical Review. E, vol. 95 no. 5-1 (May, 2017), pp. 052607 [doi] [abs] - Oğuz, EC; Socolar, JES; Steinhardt, PJ; Torquato, S,
*Hyperuniformity of quasicrystals*, Physical Review B, vol. 95 no. 5 (February, 2017) [doi] - Socolar, JES; Lubensky, TC; Kane, CL,
*Mechanical graphene*, New Journal of Physics, vol. 19 no. 2 (February, 2017), pp. 025003-025003 [doi] - Rutkowski, DM; Marcoux, C; Socolar, JES; Hall, CK,
*Formation of limit-periodic structures by quadrupole particles confined to a triangular lattice*, Physical Review. E, vol. 95 no. 1 (January, 2017), American Physical Society [doi] [abs] - Hann, CT; Socolar, JES; Steinhardt, PJ,
*Local growth of icosahedral quasicrystalline tilings*, Physical Review B, vol. 94 no. 1 (July, 2016) [1604.02479v1], [doi] [abs]

- Pham, AT; Zhuang, Y; Detwiler, P; Socolar, JES; Charbonneau, P; Yellen, BB,

**Selected Invited Lectures***Autonomous Boolean modeling of gene regulatory networks*, May 07, 2012, Mathematical Biosciences Institute, Ohio State U.*Hierarchical freezing in a limit-periodic structure*, October 15, 2011, Princeton Center for Theoretical Science*Periodicity and chaos in delayed Boolean networks*, July 19, 2011, ICIAM Conference, Vancouver, Canada*Relaxation to a limit-periodic ground state*, May 23, 2011, Haverford College, Haverford, PA*Autonomous Boolean Models*, June 28, 2009, Mount Holyoke College, South Hadley, MA

For more information, see Prof. Socolar's Home Page.