
About the author
My name is Leonid Shifrin. Until very recently, I worked in
the field of Theoretical Physics. I defended my PhD in 2006.
As an undergraduate, I majored in Astrophysics, but my
undergraduate research was in theoretical Quantum Optics.
My PhD was in Quantum Field Theory, and my recent scientific
interests include Quantum Field Theory and Random Matrices. Current interestsThese are, in no particular order, topics of current interest to me: Mathematica programming, general programming and computer science (esp. algorithms and compilers), Linux, algorithmic graph theory, scripting languages (Perl/Python/Ruby), functional programming languages (LISP/Scheme, ML/Ocaml), data mining, web technologies. In most of these areas I am a (complete) novice, having only researched and invested in the necessary literature. But I hope to become better soon :) I am excited by the possibilities offered by Mathematica and its programming language. In Mathematica programming, I am more interested in extending the core language and exploring ways in which one can combine efficiency of general algorithms implemented in Mathematica generic builtin functions, with the power of functional and rulebased programming. I am particularly interested in more advanced techniques such as lexical closures, dynamic programming/memoization, runtime code generation (LISPlike macros etc), and others related to introspection and metaprogramming. I am also interested in new dynamic interface construction capabilities of Mathematica. Programming skillsApart from the Mathematica skills, I consider myself a reasonably competent C programmer (about 2025 kloc), have some Basic, Pascal, Fortran and Matlab under my belt from the older times, also Java and C++, and Python to a little lesser extent. Of these languages, I admire C, Python and Mathematica the most in terms of purity (language design), but I also much appreciate the scope and power of Java when used with modern IDEs and new opensource Java  based technologies. Most of my programming background which is relevant today is relatively recent. I used C++ and Java for several projects.I started with Mathematica (programming) as a hobby, then got more serious. At some point I felt stuck in my current programming mindset and learned C. My Mathematica code has certainly improved after that. PublicationsArticles7. G. Akemann, M.J. Phillips, E.Bittner and L. Shifrin, in preparation. 6. G. Akemann, M.J. Phillips, L. Shifrin "Gap Probabilities in NonHermitian Random Matrix Theory", ePrint: arXiv:0901.0897 [mathph], Submitted to Journal of Mathematical Physics. 5. G. Akemann, Jacques C.R. Bloch, L. Shifrin, T. Wettig, "Individual complex Dirac eigenvalue distributions from random matrix theory and lattice QCD at nonzero chemical potential.", Phys.Rev.Lett.100:032002,2008 ePrint: arXiv:0710.2865 [heplat] 4. G.Akemann, L.Shifrin "A generalization of the Dyson's Integration Theorem for Determinants", J.Phys.A40:F785F792,2007 ePrint: ArXiv:0705.2555 [mathph] 3. L.Shifrin, J.J.M.Verbaarschot "Sum rules for the Dirac spectrum of the Schwinger Model", Phys.Rev.D 73:074008, 2006 [hepth/0507220] 2. Mazets I.E., Shifrin L.B. "Theory of laser beam propagation through a vapor cell in the collisionfree optical pumping regime" Optics Communications 175 (13): 227231, 2000 1. Mazets I.E., Shifrin L.B. "Nonexponential decay of an atomic excited state in the presence of BoseEinstein condensate" Phys. Lett. A 229 (2): 7376 ,1997 Conference proceedings2. G. Akemann, Jacques C.R. Bloch, L. Shifrin, T. Wettig, "Distributions of individual Dirac eigenvalues for QCD at nonzero chemical potential: RMT predictions and lattice results.", Talk given at 25th International Symposium on Lattice Field Theory, Regensburg, Germany, 30 Jul  4 Aug 2007. Published in PoS LAT2007:224,2007. ePrint: arXiv:0711.0629 [heplat] 1. L. Shifrin, J.J.M. Verbaarschot, "LeutwylerSmilga sum rules in the Schwinger model", Prepared for Quark Confinement and the Hadron Spectrum 7, Ponta Delgada, Azores, Portugal, 27 Sep 2006. Published in AIP Conf.Proc.892:217219,2007. Also in *Ponta Delgada 2006, Quark confinement and the hadron spectrum* 217219 Awards
Teaching experience
LanguagesEnglish  fluent German  basic Contact  