
Department of
Physics
Professor
Calvin W. Johnson Web
pages 

back to main c.v. Funding Students Publications TALKS
Invited
Talks at National and International Meetings 1.
``Monte Carlo Path Integrals for the Nuclear Shell
Model, '' Computational Physics `91
Conference, San Jose CA, April 1991. 2.
``The Fate of ^{&}Be in the Sun,'' Workshop on
the Atomic/Nuclear Frontier (sponsored by DAMOP) Reno, Nevada,
May 16, 1993. 3.
``Finite boson mappings of fermion systems,''
International Conference
on Perspectives for the Interacting Boson Model, Padua,
Italy, June 1994. 4.
``Orderly spectra from random interactions,'' XXII Symposium
on Nuclear Physics, Oaxtepec, Mexico, January 1999. 5.
``Random matrices in nuclear stucture,'' International
Workshop on Advances in the Nuclear Shell Model, Trento,
Italy, June 1999. 6.
``Order from Chaos in the Shell Model,'' Tenth International
Symposium on Capture GammaRay Spectroscopy and Related Topic,
Santa Fe, September 1999. 7.
``Random matrix calculations of level densities and strength
functions,'' International Workshop on Nuclear Level
Densities, Livemore, October 1999. 8.
``Pairing from random interactions,''
Shell Model 2000, RIKEN, Japan, March 2000. 9.
``Order from Chaos in the Nuclear Shell Model,'' APS Spring
Meeting, Long Beach CA, April 2000. 10.
"Collectivity, Chaos, and Computing," Computational
and Group Theoretical Methods in Nuclear Physics, Playa del
Carmen, Mexico Feburary 2003. 11.
“Order from randomness in quantum manybody systems,” 2^{nd}
Meeting of the University of Alberta Theoretical Physics
Institute, Banff, Canada, August 2003. 12.
“Shorcuts to Nuclear Structures: Lessons and Applications of
HartreeFock and RPA,” Blueprints for the Nucleus Conference,
Feza Gürsey Institute, İstanbul, Turkey, 2005. 13. “The
nuclear density of states and the role of the residual
interaction,” Perspectives for Nuclear Data for the Next
Decade, CEA DIF BruyeresleChatel, France, September 2005. 14. “Random
interactions and collective motion,” XXIX Symposium on Nuclear
Physics, Cocoyoc, Mexico, January 2006. 15.
“HartreeFock,
RPA, and Beyond,” International Conference
on Correlations Beyond the MeanField, European
Centre for Theoretical Studies, Trento, Italy, June 2007. 16.
"How approximate is the random phase
approximation? Comparing RPA against full
configurationinteraction calculations," Multidisciplinary
Workshop on the Random Phase Approximation, Universite
Pierre et Marie Curie, Jan 2629,2010
17.
"Making
Effective Interactions More Effective," Joint NSCLEFES
Workshop on Perspectives on the Modern Shell Model, Michigan
State University, Feb
46 2010. Departmental
Colloquia 1.
“Adventures
in the Manybody problem,''New Mexico State University, Jan
1993. 2.
“Adventures in the Manybody problem,''
University of Arizona, September 1993. 3.
“Adventures in the Manybody problem,'' Notre Dame,
February 1994. 4.
“Neutrinos in the Universe,'' Louisiana State
University, March 1995. 5.
“Order Out of Chaos in Atomic Nuclei,'' San Diego
State University, Feb, 2001. 6.
“Boing! Boing! The bouncing nucleus,” CSU Los
Angeles, April 2004. 7.
"Add, multiply, divide, and conquer," SDSU Computational
Sciences Colloquium, Sept 2010 Other
Talks 1.
``Supernova contributions to the MoTc experiment,'' Caltech,
August 1988. 2.
``Supernova contributions to the MoTc experiment,"
Los Alamos, October 1988. 3.
``Geochemical integration of the galactic neutrino
flux from stellar collapses,''
APS
DNP meeting Santa Fe, October 1988. 4.
``A Full 4hw Calculation of ^{16}O and
GamowTeller strengths'' UCLA, Feb 1990. 5.
``Mining for Supernova Neutrinos, '' University of Wisconsin,
October 1990. 6.
``Weak interaction rates in
^{16}O ''
APS DNP meeting UrbanaChampaign, Oct 1990. 7.
``A Full 4hw Calculation of ^{16}O ,''
MIT, Feburary 1991. 8.
``Electrointegration of the deuteron,''
MITBates Lab, February 1991. 9.
``Electrointegration of the deuteron,''
APS DNP meeting East Lansing, Oct 1991. 10.
``Fate of ^{7}Be in the Sun,''
Michigan State University, January 1992. 11.
``Monte Carlo Path Integrals for the Nuclear Shell
Model,'' University of Frankfurt, June 1992. 12.
``Monte Carlo Path Integrals for the Nuclear Shell
Model,'' Niels Bohr Institute, June 1992. 13.
``Monte Carlo Path Integrals for the Nuclear Shell
Model,''University of Munster, June 1992. 14.
``Fate of ^{7}Be
in the Sun,'' International Conference on Nuclei in
the Cosmos, Karlsruhe Germany, July 1992. 15.
``Monte Carlo Path Integrals for the Nuclear Shell
Model,'' University of Washington, September 1992. 16.
``Monte Carlo Path Integrals for the Nuclear Shell Model,''
CEBAF, Dec 1992. 17.
``Optimal Paths for Response Functions,'' APS
Washington Meeting, April 1993. 18.
``Exact Fermionpairtoboson mapping,'' Caltech,
June 1993. 19.
``Monte Carlo methods for the manybody problem,''
Florida State University, August 1993. 20.
``Mean fields for fermion pairs,'' Workshop on High
Spins and Novel Deformations, Trento, Italy, December 1993. 21.
``Exact fermionpair to boson mapping,'' Michigan State
University, February 1994. 22.
``Spinoffs (boson mappings) from the AFMC project,'' Workshop
on Monte Carlo Methods for the Nuclear Shell Model, Trento,
Italy March 1994. 23.
``Frontiers in nuclear manybody physics,'' Lawrence Berkeley
Laboratory, May 1994. 24.
``Boson mappings and related topics,'' Michigan State
University, August
1994. 25.
``Neutrinos in the Universe,'' TRIUMF, October 1995. 26.
``Random matrix theory of effective interactions,''
International Conference on Microscopic
Manybody Methods, European Centre for Theoretical Studies,
Trento, Italy, May 1997. 27.
``Random matrix theory of effective interactions,'' Los Alamos
National Lab, July 1997. 28.
``Random matrix theory of effective interactions,'' APS DNP
Fall meeting, Whistler
BC, October 1997. 29.
``Order out of chaos in the shell model,'' Institute for
Nuclear Theory, Seattle,
Washington, December 1997. 30.
``Orderly spectra from random interactions,''APS DNP
meeting, Santa Fe, Oct1998. 31.
``Orderly spectra from random interaction,''
APS Centenial Meeting, Atlanta, March 1999. 32.
``Orderly spectra from random interaction,''
Workshop on Algebraic Methods
in Manybody systems, Institute for Nuclear Theory, Seattle,
March 1999. 33.
``Random matrix calculations of strength functions,'' Workshop
on Lowenergy Neutrino Physics, Institute for Nuclear Theory,
Seattle, July 1999. 34.
``Orderly spectra from random interaction,'' Theory Division,
Los Alamos National Laboratory, September 1999.
35.
``Order from chaos in nuclei: recent developments,'' T16,
Los Alamos National Lab, February 2001. 36.
``Order out of Chaos in the Nuclear Shell Model,'' Triangle
Universities Nuclear Physics Seminar, November 2001. 37.
``Statistical models of nuclear level densities,''
APS DNP Meeting, East Lansing, October 2002. 38.
``How to weigh a neutrino,'' Astronomy/Physics seminar, San
Diego State, Nov 2002. 39.
''New and improved nuclear physics for nuclear astrophysics,''
Center for Astrophysics and Space Sciences, UCSD, April 2003.
40.
“Order from random interactions: review and prospects,”
International Workshop on Recent Advances in the Nuclear Shell
Model, ECT*, Trento, Italy, June 2003. 41.
“Boing! Boing! The bouncing nucleus,” Physics
colloquium, San Diego State, Oct 2003. 42.
“Microscopic modeling of nuclear level densities using
spectral distribution theory,” 2004 SSSA Program Symposium,
Albuquerque, March 2004. 42.
“Microscopic modeling of nuclear level densities using
spectral distribution theory,” T16 seminar, Los Alamos
National Lab, March 2004. 43.
“Microscopic modeling of nuclear level densities using
spectral distribution theory,” Nuclear Theory and Modeling
seminar, Lawrence Livermore National Lab, June 2004. 44.
“GamowTeller transitions and deformation in RPA,” APS DNP
meeting, Chicago, October 2004. 45.
“Nuclear level densities from spectral distribution theory,”
APS DNP meeting, Chicago, October 2004. 46.
“RPA and the shell model,” Institute for Nuclear Theory, U.
Washington, November
2004. 47.
“Recent developments in shell modelbased calculations of
nuclear level densities,” Lawrence Livermore National Lab,
June, 2005. 48.
“Microscopic modeling of nuclear level densities using
spectral distribution theory: recent developments,” 2005 SSAA
Program Symposium, Las Vegas NV, August 2005. 49.
“Hacking the atomic nucleus,” SDSU Computational Science
Colloquium, April 2006. 50.
“Archimedes Goes Nuclear,” SDSU Physics Colloquium, November
2006. 51.
“Divide and Conquer: New Ideas for Shell Model Algorithms,”
Lawrence Livermore National Lab, July 2007. 52.
“Moment methods and the nuclear level density,” CNR*07, Fish
Camp CA, October 2007. 53.
“Cold fermion gases as a test of manybody theories,”
UNDEF Annual Meeting, Pack Forest, WA, June 2008. 54.
“Moment methods for modeling nuclear level densities,” SNP
2008, Athens, OH, June 2008. 55.
“Cold fermion gases as a test of manybody theories,”
JUSTIPENEFESHokudaiUNEDF workshop, Onuma Park, Japan, July
2008. 56.
“Cold gases and cartoon nuclei,” NPAC forum, Univ of
WisconsinMadison, Sept. 2008. 57.
"What can cold atomic gases teach us about nuclear structure?"
APS DNP Oakland, Oct 2008. 58.
"Computational needs for doublebeta decay calculations,"
Workshop on Exascale Computing for Nuclear Physics,
Gaithersburg MD, Jan 2009. 59.
"Shellmodel CI codes and applications," UNEDF Annual Meeting,
Pack Forest, WA June 2009. 60.
"Modelspace truncation in shellmodel fits," Joint APS/ JPS
Hawaii, Oct 2009. 61.
"Making effective interactions more effective," UNEDF Annual
Meeting, MSU, June 2010 62.
"Making effective interactions more effective," APS DNP
meeting, Sante Fe, Nov 2010. 63.
"Add, multiply, divide, and conquer," UCSD Quantum Chemistry
Seminar, Oct 2010 64.
"Factorization algorithms for configurationinteraction,"
Perspectives on the nocore shell model, TRIUMF, Feb
2011. 65.
"Cold atomic gases and effective interactions," Benchmarking
the manybody problem, Institute for Nuclear Theory/University
of Washington, March 2011. 66.
"Shellmodel Fermi gas calculations of level
densities," 3rd Workshop on Level Density and Gamma Strength,
Oslo, May 2011 67.
"Progress in the BIGSTICK shellmodel code", UNEDF annual
meeting, June 2011 68.
"Random matrices, symmetries, and manybody states," APS DNP
meeting, East Lansing, Oct 2011. 69.
"The Origin of Nuclear Spin," Iowa State University, Dec 2011. 70.
"How to Save Terabyes of Memory," Workshop on the NoCore
Shell Model, TRIUMF, Feb 2012. 71.
"The Origin of Order in Random Matrices with Symmetries,"
Beauty in Physics, Cocoyoc, Mexico, May 2012. 72.
"Exploring MeanField Calculations of the Nuclear Density of
States," Theory Seminar, Los Alamos National Lab, 21 August
2012. 73.
"Random interactions, random matrices, and emergent
symmetries," Workshop in Honor of George Bertsch's 70th
Birthday, September 2012, Seattle WA. 74.
"The Origin of Nuclear (Not Nucleon) Spin," TRIUMF theory
seminar, September 11, 2012, TRIUMF, Vancouver, Canada. 75.
"Big Calculations in Little Boxes: the BIGSTICK shellmodel
code," September 26, 2012, INT program on "Light Nuclei from
First Principles." 76.
"The Origin of Order in Random Matrices with Symmetries," APS
DNP meeting Newport Beach, CA, Oct 25, 2012. 77.
"Beyond Noether's Theorem: What Happens when Randomness Meets
Symmetry," TU Darmstadt Nuclear Theory Seminar, July 11, 2013. 78.
"Almost Universal Behavior in ManyBody Hamiltonians," APS DNP
Meeting, Newport News VA, Oct 25, 2013. 79.
"Randomness, Symmetries, and Regularities in
Manybody Systems," 2nd CUSTIPEN Workshop, Peking University,
December 2013. 80.
"Factorization Algorithms for LargeScale Manybody
Calculations," Peking University Nuclear Theory Seminar,
December 2013. 81.
"The Origin of Nuclear Spin," Shanghai Jiao Tong
University Nuclear Theory Seminar, December 2013. 82:
"Spinorbit decomposition of ab
initio nuclear wavefunctions," Workshop on Nuclear
Structure & Reactions," TRIUMF, February 2014. 83:
"Factorization Algorithms for LargeScale Manybody
Calculations," ICNT Workshop "Physics of Exotic Nuclei," RIKEN
Wako Campus, June 2014. 84.
"Random matrices, pointgroup symmetries, and manybody
systems," Advanced manybody and statistical methods in
mesoscopic systems II, Brasov, Romania, September 2014. 85.
"Update on BIGSTICK progress," CalLat collaboration meeting,
Asilomar CA, October 2014. 85.
"Spinorbit decomposition of ab
initio nuclei," APS DNP meeting, Waikiloa, HI, October
2014. 86.
"Nuclear structure calculations for an atlas of dark matter
experiments," Nuclear Aspects of Dark Matter Searchers,
Institute for Nuclear Theory, University of Washington, Dec
2014. 87.
“Large scale calculations of nuclear structure and nuclear
transition matrix elements,” Workshop on Progress in ab
initio Techniques in Nuclear Physics, TRIUMF, Feb. 2015. 88.
“Add,
Multiply, Divide and Conquer: Onthefly Algorithms for
Manybody Calculations,” SIAM Conference on Computation
Science and Engineering (CSE 15), Salt Lake City, March 2015. 89.
"Large scale shellmodel calculations for open shell nuclei,"
ICNT workshop: Theory for open shell nuclei near the limits of
stability, MSU/NSCL/FRIB May 2015. 90.
"Large scale shellmodel calculations for nuclear structure",
PKUCUSTIPEN workshop on "Advances in computations of nuclear
structure and nuclear forces," Peking University, Aug 16,
2015. 91.
"Strength functions in the shell model," Institute for Modern
PhysicsCUSTIPEN workshop on "Properties of exotic nuclei and
asymmetric nuclear matter," IMP, Lanzhou, Aug 812 2015. 92.
"Large scale configurationinteraction calculations
for nuclear structure," Workshop on Computational Advances in
Nuclear and Hadronic Physics, Yukawa Institute of Theoretical
Physics, University of Kyoto, October 2015. 93.
"Strength function sum rules and the BrinkAxel hypothesis,"
APS DNP meeting, Santa Fe, October 2015. 94.
"Spectral distribution theory and the evolution of forces
under the similarity renormalization group," Workshop on
progress on ab initio
nuclear theory, TRIUMF, February 2016. 95.
"Systematics of strength functions and the BrinkAxel
hypothesis," Workshop on Statistical properties of nuclei,
ECT*, Trento, Italy, July 2016. 
