Biological Physics Theory:
One area of new activity for CIRCS has been in the realm of cell biology. Together with Dr. Denise Freed, Prof. José has been working on the physics of molecular motors in cells, and they are collaborating on a forthcoming paper. In addition, Prof. Karma and Dr. Rappel have published a paper in Physical Review Letters which details their research on a neuron firing model. Future possibilities for CIRCS collaborative research include the modeling of chlorophyll molecules in their excited states, as well as the mechanics of mitotic chromosome division. More recently, Prof. José has been working together with Dr. J. F Chauwin and graduate student Frank Gibbons on the problem of mitosis without chromosomes, which has been recently realized through experiment. Prof. José has also started a research project in neurobiology with Dr. Paul Tiesinga and Dr. Rappel. This research attempts to explain the 20-60 Hz gamma oscillations in the hippocampus, which is believed to be related to the brainÕs memory process.

Quantum Chaos:
Prof. José has also been interested in understanding the connection between chaos in the Newtonian limit and quantum mechanics. Specifically, he is attempting to establish a connection between the wave-like solutions of closed and open systems known to be chaotic in the ray optics limit. By and large, the problems considered for study are motivated by experiments feasible in mesoscopic and electromagnetic wave cavities; Professor José expects that the theoretical predictions will lead to experimentally testable new effects in cavities as well as in mesoscopic systems. The unifying theme of this research is to find the statistical properties of the eigenvalues, eigenfunctions, transmission amplitudes, and phase shifts of the different systems that define different universality classes.

Theoretical Condensed Matter, Statistical Physics:
Professor José's research intends to shed light on the multiple transformations of order in condensed matter physics, focusing on the physics of phase transformations dominated by thermal and quantum mechanical effects. Superconductivity at high temperatures and superfluidity at low temperatures are specific problems of interest. His research relies on analytic techniques as well as use of large scale numerical simulations carried out in state-of-the-art serial and parallel computers to study the properties of homogeneous, inhomogeneous, and artificially fabricated superconducting systems. His work is motivated by experimental findings and, in turn, has led to predictions that have been tested experimentally.

• "Phase and charge reentrant phase transitions in two capacitively coupled Josephson arrays with ultrasmall junctions" G. Ramirez-Santiago. Phys RevB November (2004).
• "Synchronization as a mechanism for attentional modulation" P. Tiesinga, J-M. Fellous, E. Salinas and T. Sejnoswi. Neurocomputing. 58-60, 641-646 (2004).
• "Modeling the Neural Control of Zebra fish Locomotive Behaviors" S.A. Hill; M.A. Borla*; J.V. Jose; D.M. O'Malley. Soc. Neurosci. Abs., 29:278.10 (2003)
• "Classical solutions of an electron in magnetized wedge billiards" Jorge V. Jose, A. Góngora-T and S. Schaffner. Physical Review E 66, 047201 (2002)
• "Dynamic Dontrol of an Embedded Cavity Resonator" Jorge V. Jose, A. Antillón, Optics Communications 208 (2002) 145-153
• "Entrainment, Arnold tongues, and duality in a periodically driven integtate-and-fire model" Jorge V. Jose, Joaquín Escalona and Paul Tiesinga, Neurocomputing 44-46 (2002) 91-96

Curriculum Vitae (.pdf)

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Modeling the Neural Control of Zebrafish Locomotive Behaviors

Given by Scott A. Hill, Xiao-Ping Liu, Melissa A. Borla, Jorge V. José and Donald M. O'Malley at Neuroscience 2003, the Society for Neuroscience's annual meeting

Is attentional gain modulation optimal at gamma frequencies?

Given by JorgeV.Jose, PaulTiesinga, Jean-MarcFellous, Emilio Salinas and Terrence Sejnowski (2003)

Synchronization as a mechanism for attentional modulation

This poster was presented by JorgeV.Jose, Paul Tiesinga, Jean-MarcFellous, Emilio Salinas and Terrence J. Sejnowski (2003)

• Frank Gibbons, ex-graduate student and Now a Dr.
• Dr. Paul Tiesinga, ex-CIRCS Postdoctoral Fellow now Asst. Professor of Physics & Astronomy at the University of North Carolina, Chapel Hill, NC.
  

• Professor Emeritus Eugene Saletan, (saletan AT neu.edu), Northeastern University, Physics Department. Professor José and Professor Saletan have recently published a textbook entitled Classical Dynamics: A contemporary approach.
• Daniel Dominguez (daniel AT citlalli7.physics.neu.edu), a visiting scholar from the Centro Atomico Bariloche, Argentina.
• Professor T. Kopec (kopec AT phyjj3.physics.neu.edu), Senior Fulbright Visiting Scholar.
• Dr. Guillermo Ramirez-Santiago (memo AT fenix.ifisicacu.unam.mx).

• Dr. Jean Francois Chauwin (chauwin ATcitlalli7.physics.neu.edu), CIRCS Postdoctoral Fellow
  
• Dr. Denise Freed (freed AT ridgefield.sdr.slb.com), Visiting Scholar, currently at Princeton University
  
• Dr. Thomas Hagenaars, Postdoctoral Fellow at Wurzburg University, Germany.
  
• Dr. J.L. Mateos (mateos AT fenix.ifisicacu.unam.mx), Visiting Scholar.