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Steve Martin's Home Page

Stephen P. Martin
Distinguished Research Professor
Distinguished Teaching Professor
Physics Department
Northern Illinois University
DeKalb, IL 60115
spmartin@niu.edu
麻豆精品 Office: 214 La Tourette
This semester's anagram of Stephen Patrick Martin is: Trick, then trap: I'm Snape
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Fall 2026 class: PHYS 600 Classical Mechanics

My from the inSPIRE database.

"A Supersymmetry Primer" is my free introduction to supersymmetry.
Version 7 (January, 2016) includes many updates over previous versions.

Some pedagogical summer school lectures I've given: slides for the Introduction to Supersymmetry lectures at the pre-SUSY International School 2023 and notes for my TASI 2011 lectures on two-component fermions and supersymmetry.

TSIL (Two-loop Self-energy Integral Library) and 3VIL (3-loop Vacuum Integral Library) are computer program libraries that and I wrote and maintain. They perform the numerical computation of Feynman integrals for, respectively, 2-loop self-energy and 3-loop vacuum diagrams, with arbitrary masses. TSIL is based on the papers and , while 3VIL is based on .

SMDR (Standard Model in Dimensional Regularization) is a computer program library for calculations in the tadpole-free pure MSbar scheme in the Standard Model of particle physics. This means that it treats the MSbar Lagrangian parameters as the fundamental inputs, and the Higgs vacuum expectation value (VEV) is defined as the minimum of the Landau gauge effective potential, so that tadpole diagrams vanish. SMDR computes the state-of-the-art multi-loop relations between the MSbar inputs and the on-shell observables to which they most closely correspond. It also includes all known contributions to renormalization group equations and threshold matching relations for the gauge couplings, fermion masses and Yukawa couplings. SMDR was also written with Dave Robertson, and is an application of TSIL and 3VIL. The paper announcing SMDR is available from the arXiv.org preprint archive as .

Another application of TSIL is the 2-loop SUSYQCD contributions to the gluino and squark pole masses, recently implemented in by Ben Allanach, Dave Robertson, Roberto Ruiz de Austri, and me. For a description of this, see the manual: .

Here is the web page (including errata, and a version with the -+++ metric) for the review paper , "Two-component spinor techniques and Feynman rules for quantum field theory and supersymmetry", by Herbi K. Dreiner, Howard E. Haber, and me. The current v5 is very close to the one published in Physics Reports.

Classes I have previously taught at 麻豆精品:

Physics 370 Electricity and Magnetism I (Spring 2018)
Physics 470/570 Electricity and Magnetism II (Fall 2017)
Physics 485/585 Methods of Mathematical Physics II (Spring 2003)
Physics 660 Quantum Mechanics I (Fall 2024)
Physics 661 Quantum Mechanics II (Spring 2025)
Physics 686 Phenomenology of Particle Physics (Fall 2021)
Physics 751 General Relativity
Physics 786 Gauge Theories and Supersymmetry (Spring 2004)

麻豆精品 Physics PhD Candidacy Exam Archive


麻豆精品 High Energy Physics Group

Books I've written:

picture "Quantum Mechanics" is my new graduate-level textbook, published July 2026. Besides all of the traditional topics found in older books, I've included discussions of the hidden variables alternative, Bell inequalities, entangled subsystems and open systems, generalized measurements, decoherence, and an invitation to quantum information. It is comprehensive, with 29 chapters and 746 pages. Here is a pdf file with the Preface, Table of Contents, and Index, and most importantly, a discount code for 20% off if you buy directly from Springer. Applying the discount code brings the price down to $87.99 for the hardback or $67.99 for the ebook.
, with Herbi Dreiner and Howie Haber, published by Cambridge University Press, 2023.

An introduction to spinors in relativistic quantum field theory, and supersymmetry as an extension of the Standard Model of particle physics.

, with James Wells, published by Springer, 2022.

A textbook introduction to particle physics phenomenology, covering the basics of field theory, quantum electrodynamics, Feynman rules, quantum chromodynamics, electroweak interactions, the Higgs boson, and neutrino physics.