Harmony among various subjects of theoretical physics. D-brane physics in string theory. Elementary particle physics, Hadron physics, Nuclear physics, Condensed matter physics, Cosmology, Astrophysics.
Specifically: AdS/CFT correspondence, Holographic QCD, String field theory, Tachyon condensation, M-theory, Solitons in field theories, Non-commutative spaces, String dualities, etc.
Brane physics itself is a central concept in theoretical physics. It leads to possible non-perturbative formulations of string/M theory, and relates superstring theory with various other subjects in physics.
A Comment on Holographic Luttinger Theorem. Koji Hashimoto (Nishina Ctr., RIKEN), Norihiro Iizuka (CERN). Mar 2012. 20 pp. Published in JHEP 1207 (2012) 064
Holographic Baryons: Static Properties and Form Factors from Gauge/String Duality. Koji Hashimoto (Wako, RIKEN), Tadakatsu Sakai (Ibaraki U., Mito), Shigeki Sugimoto (Tokyo U., IPMU). Jun 2008. 45 pp. Published in Prog.Theor.Phys. 120 (2008) 1093-1137
Universal Reconnection of Non-Abelian Cosmic Strings. Minoru Eto, Koji Hashimoto (Tokyo U., Komaba), Giacomo Marmorini (INFN, Pisa & Pisa, Scuola Normale Superiore), Muneto Nitta (Keio U.), Keisuke Ohashi (Tokyo Inst. Tech.), Walter Vinci (INFN, Pisa & Pisa U.). Sep 2006. 5 pp. Published in Phys.Rev.Lett. 98 (2007) 091602
Reconnection of non-Abelian cosmic strings. Koji Hashimoto (Tokyo U., Komaba & MIT, LNS), David Tong (Cambridge U., DAMTP). Jun 2005. 25 pp. Published in JCAP 0509 (2005) 004
Tachyon condensates, Carrollian contraction of Lorentz group, and fundamental strings. Gary Gibbons (Cambridge U., DAMTP), Koji Hashimoto (Tokyo U., Komaba), Piljin Yi (Korea Inst. Advanced Study, Seoul). Sep 2002. 28 pp. Published in JHEP 0209 (2002) 061
Dynamical decay of brane anti-brane and dielectric brane. Koji Hashimoto (Tokyo U., Komaba). Apr 2002. 46 pp. Published in JHEP 0207 (2002) 035
Monopoles and dyons in noncommutative geometry. Akikazu Hashimoto (Santa Barbara, KITP), Koji Hashimoto (Kyoto U.). Sep 1999. 15 pp. Published in JHEP 9911 (1999) 005
Ph. D (Dr. Sc) from Kyoto University, March 2000.
October 2001 - September 2007
Assistant Professor, the University of Tokyo
October 2007 - March 2010
(Senior) Scientist, RIKEN
April 2010 -
Associate Chief Scientist, RIKEN,
heading up Mathematical Physics Laboratory
October 2012 -
Professor, Graduate School of Science, Osaka University