James (Jim) Kneller received his PhD from The Ohio State University (OSU) in 2001 on the subject of Light Element Nucleosynthesis under the supervision of Gary Steigman. After remaining at OSU for a year, he came to NC State in 2002 as a postdoc working with Gail McLaughlin leaving in 2005 to take up another postdoc position at the University of Minnesota. In 2008 he later became a ‘chercheur’ at the French Institut de Physique Nucleaire (IPN), a division of the Centre National de la Recherche Scientifique (CNRS), and then returned to NC State in 2010 as an assistant professor.
Jim's research in theoretical astrophysics has wandered over his early career from Big Bang Nucleosynthesis, the Cosmic Microwave Background and dark energy through to Galactic Chemical Evolution and Cosmic Ray Spallation. But as a postdoc at NC State he began to explore the flavor oscillations of supernova neutrinos and this subject has remained a source of interest for him ever since. The research in his group falls into two broad categories: to understand how neutrinos can change their flavor as the propagate through a supernova due to all the different mechanisms that cause them to mix, and to compute the expected neutrino flux at Earth from all the different kinds of supernovae and examine what we can learn about how the star exploded. The results from his calculations were used to asses the sensitivity of various neutrino detector designs to supernova neutrinos such as DUNE. In 2011 Jim was awarded a Department of Energy's Early Career Research Program.
Honors and Awards
- Department of Energy Career Award
Neutrino quantum kinetics in compact objects
Sherwood A Richers, Gail C McLaughlin, James P Kneller, Alexey Vlasenko
Neutrino quantum kinetics in compact objects, 99(12), (2019), 123014, doi:https://doi.org/10.1103/PhysRevD.99.123014
Neutrino flavor transformation in supernovae as a probe for nonstandard neutrino-scalar interactions
Yue Yang and James P. Kneller
Physical Review D, 97, (2018), 103018, doi:10.1103/PhysRevD.97.103018
What can be learned from a future supernova neutrino detection?
Shunsaku Horiuchi and James P. Kneller
Journal of Physics G, 45, (2018), 043002, doi:10.1088/1361-6471/aaa90a
The Sensitivity of neutrinos to the supernova turbulence power spectrum: Point source statistics
Kneller, J. P., Kabadi, N. V.
Phys. Rev. D, 92, (2015), 013009, doi:10.1103/PhysRevD.92.013009
Stimulated neutrino transformation through turbulence on a changing density profile and application to supernovae
Patton, K. M., Kneller, J. P., McLaughlin, G.
Phys. Rev. D, 91, (2014), 025001, doi:10.1103/PhysRevD.91.025001
Does The Finite Size of the Proto-Neutron Star Preclude Supernova Neutrino Flavor Scintillation Due to Turbulence?
Kneller, J.P. & Mauney, A.W.
Phys. Rev. D, 88, (2013), 045020, doi:10.1103/PhysRevD.88.045020
Consequences of large theta13 for the turbulence signatures in supernova neutrinos
Kneller, J.P. & Mauney, A.W.
Phys. Rev. D, 88, (2013), 025004, doi:10.1103/PhysRevD.88.025004
Combining collective, MSW, and turbulence effects in supernova neutrino flavor evolution
Lund, T. & Kneller, J.P.
Phys. Rev. D, 88, (2013), 023008, doi:10.1103/PhysRevD.88.023008
Stimulated neutrino transformation in supernovae
J.P. Kneller, G.C. McLaughlin and K. Patton
Journal of Physics G Nuclear Physics, 40, (2013), 055002, doi:10.1063/1.4826746
Neutrino oscillations above black hole accretion disks: disks with electron-flavor emission
A.C. Malkus, J.P. Kneller, G.C. McLaughlin, R. Surman
Phys. Rev. D, 86, (2012), 085015, doi:10.1103/PhysRevD.86.085015
Shockwaves in Supernovae: New Implications on the Diffuse Supernova Neutrino Background
S. Galais, J.P. Kneller, C. Volpe, J. Gava
Phys. Rev. D, 81, (2010), 053002, doi:10.1103/PhysRevD.81.053002
Three Flavor Neutrino Oscillations in Matter: Flavor Diagonal Potentials, the Adiabatic Basis and the CP phase
J.P. Kneller & G.C. McLaughlin
Phys. Rev. D, 80, (2009), 053002, doi:10.1142/S0218271892000203
TOPICAL REVIEW: Neutrino flavour transformation in supernovae
H. Duan & J.P. Kneller J.
Phys. G: Nucl. Part. Phys., 36, (2009), 113201, doi:10.1088/0954-3899/36/11/113201
A Dynamical collective calculation of supernova neutrino signals
J. Gava, J.P. Kneller, C. Volpe & G.C. McLaughlin
Phys. Rev. Let., 103, (2009), 071101, doi:10.1103/PhysRevLett.103.071101
Oscillation Effects and Time Variation of the Supernova Neutrino Signal
J.P. Kneller, G.C. McLaughlin & J. Brockman
Phys. Rev. D, 77, (2008), 045023, doi:10.1103/PhysRevD.77.045023