Yong-Zhong Qian
Associate Professor
342C Tate, 624-7567, email qian @ physics.umn.edu
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Department of Energy Outstanding Junior Investigator, 2000-04; McKnight Presidential Fellow, University of Minnesota, 2004-06.
National Advisory Committee for the Institute for Nuclear Theory (INT), University of Washington, Seattle, 2006-present. Co-organizer: The First Stars and Evolution of the Early Universe, 5-week INT program, University of Washington, Seattle, 2006; Probing Early Structure Formation with Mass, Light and Chemistry, Theoretical Physics Institute (TPI) workshop, University of Minnesota, Minneapolis, 2005; The r-Process: The Astrophysical Origin of the Heavy Elements and Related Rare Isotope Accelerator Physics, 1st Argonne/MSU/JINA/INT RIA workshop, University of Washington, Seattle, 2004; The Cosmic Microwave Background Radiation and Its Polarization, TPI workshop, University of Minnesota, Minneapolis, 2003; Low Z at Low z and High z : Early Chemical Evolution, TPI workshop, University of Minnesota, Minneapolis, 2002; Working Group on Data Needs for Supernova Explosions, Town Meeting on Opportunities in Nuclear Astrophysics, University of Notre Dame, 1999. Co-convener: Working Group on Solar Neutrinos and Neutrino Astrophysics, Town Meeting on Astrophysics, Neutrino Physics, Symmetries, and Ultra-Cold Neutrons, Lawrence Berkeley National Laboratory, 2000. Scientific Organizing Committees: First Stars III, Santa Fe, New Mexico, 2007; First Stars II, Department of Astronomy and Astrophysics, Penn State University, University Park, 2003. Summer School Lecturer: 14th Summer School in Nuclear Physics, St. John’s College, Santa Fe, 2002; 12th Summer School in Nuclear Physics, University of California, Santa Cruz, 2000.
Research Areas: Nuclear/particle astrophysics and cosmology, supernova explosion and nucleosynthesis, chemical evolution of galaxies, neutrino oscillations and their effects in astrophysical environments
Current Research
Nuclear/particle astrophysics and cosmology. Main research areas include (1) neutrinos in astrophysical processes and consequences of neutrino oscillations, (2) nucleosynthesis and chemical evolution, and (3) supernova mechanisms.
Selected Publications
H. Duan, G. M. Fuller, J. Carlson, and Y.-Z. Qian, “Flavor Evolution of the Neutronization Neutrino Burst from an O-Ne-Mg Core-Collapse Supernova”,, Phys. Rev. Lett. (2008)
H. Duan, G. M. Fuller, J. Carlson, and Y.-Z. Qian, “Neutrino Mass Hierarchy and Stepwise Spectral Swapping of Supernova Neutrino Flavors, Phys. Rev. Lett. (2007)
H. Ning, Y.-Z. Qian, and B. S. Meyer,, “r-Process Nucleosynthesis in Shocked Surface Layers of O- Ne-Mg Cores, Astrophys. J. Lett. (2007)
Y.-Z. Qian and G. J. Wasserburg, , “Where, Oh Where Has the r-Process Gone?”, Phys. Rep. (2007)
H. Duan, G. M. Fuller, J. Carlson, and Y.-Z. Qian, “Simulation of Coherent Nonlinear Neutrino Flavor Transformation in the Supernova Environment: Correlated Neutrino Trajectories”, Phys. Rev. (2006)
Education
Ph.D. Physics, University of California, San Diego,1993