Welcome to Koji Hashimoto's Homepage!

homepage in Japanese

Profile

Status : Senior Research Scientist, Theoretical Physics Lab., RIKEN

Mailing address : Theoretical Physics Lab., RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan

E-mail :

Phone : +81-48-462-1111 Ext. 3444

Fax : +81-48-462-4698

Schedule upcoming and in recent days (2007 Oct-)

1st April 2010 - : Heading up a new grop "Mathematical Physics Laboratory" at RIKEN Nishina center

20-23 March 2010 : Schedule comittee (Sewanin) of JPS annual meeting at Okayama university

19-28 Feb 2010 : Invited to CERN theory division

18-20 Feb 2010 : Organizing the third workshop "Superstring and the Universe", at Kinosaki

18 Feb 2010 : Lecturer at GCOE 3rd RA camp of the university ot Tokyo, at Kakegawa

13,14 Feb. 2010 : Organizing workshop "Komaba 2010: Recent Developments in Strings and Fields" at Komaba, university of Tokyo

10-12 Feb. 2010 : Attending at IPMU focus week on "Condensed matter physics meets high energy physics" at IPMU, university of Tokyo

9 Feb. 2010 : Seminar at "New Frontiers in QCD 2010" workshop, "Hadron spectra and quark mass dependence in Holographic QCD"

8-9 Feb. 2010 : Invited to "New Frontiers in QCD 2010" workshop held at YITP, Kyoto university

6 Jan. 2010 : Attending at string theory workshop at Rikkyo university

25 Dec. 2009 : Invited speaker at Workshop on Higher Dimensional Black Holes" (24-26 Dec, 2009) at YITP

22 Dec. 2009 : Invited talk at Taiwan String theory Workshop 2010 (20-23 Dec 2009), NCTU, Taiwan, "Towards a holographic model of color-flavor locking phase"

14-17 Dec. 2009 : Talk at RIKEN-TRIUMF Collaboration meeting at TRIUMF, Vancouver, Canada

9 Dec. 2009 : Seminar at Saitama university, "The Frontiers of Superstring Theory : "D-branes" and new perspective of our world"

9 Dec. 2009 : Invited lecturer at Saitama university, "D-branes, AdS/CFT, and QCD"

8 Dec. 2009 : Invited speaker at conference "SCGT09" at Nagoya university, "Nuclear force from string theory"

24 Nov. 2009 : Attending at a workshop Perturbative and Non-perturbative Acpects in QCD at YITP, Kyoto university

18 Nov. 2009 : Seminar at DAMTP, University of Cambridge, "Nuclear Force from String Theory"

16-20 Nov. 2009 : Visiting DAMTP, University of Cambridge

12-16 Oct. 2009 : Invited to workshop "Branes, Strings and Black Hole" at YITP

14-18 Sept. 2009 : Plenary speaker at 10th international conference on Hypernuclear and Strange particle physics "Hyp X" at J-PARC, "Nuclear Force from String Theory"

11 Sept. 2009 : Presentation at JPS 2009 autumn meeting "Gravity dual of nuclei"

10-13 Sept. 2009 : Attending at JPS 2009 autumn meeting at Konan university

24-29 Aug 2009 : Lecturer at Yonupa summer school at Panorama-land Kijima-Daira, Nagano, "D-branes"

24 Aug 2009 : Invited review speaker at workshop"Hadron Structure and Interactions 2009", "Baryons in Holographic QCD"

13 Aug 2009 : Invited speaker at KEK workshop"Nuclear physics and Hadron physics", "Holographic QCD and Nuclear force"

10-13 Aug 2009 : Invited to SI2009

30 July : Talk at APCTP workshop on gauge/string duality at APCTP, Pohang, Korea, "A Color-Flavor Locking in Holographic QCD"

20 July - 1 Aug 2009 : Organizing APCTP workshop on gauge/string duality at APCTP, Pohang, Korea

23 July : Seminar at Theoretical Nuclear Physics Group, Tokyo Institute of Technology, "Nuclear Force from String Theory"

6 July - 10 July 2009 : Organizing YITP workshop on QFT

18 June 2009 : Seminar at Osaka university, theoretical particle physics group, "Nuclear force from String Theory"

17-19 June 2009 : Lectures (Shuchu-Kogi) at Osaka university, theoretical particle physics group, "D-branes"

26 May 2009 : Seminar at E-ken, theoretical particle physics group, Nagoya university, "Cosmic strings and D-branes"

11 May 2009 : Seminar at Madison string group at the university of Wisconsin, "Nuclear Force from String Theory"

9 April - 13 May 2009 : Visiting Madison string group at the university of Wisconsin, the US

8 May 2009 : Seminar at Caltech, "Nuclear Force from String Theory"

7 May 2009 : Seminar at KITP workshop "Fundamental Aspects of Superstring Theory"at KITP, Santa Barbara, "Nuclear Force from String Theory"

19 April - 9 May 2009 : Participating in KITP workshop "Fundamental Aspects of Superstring Theory"at KITP, Santa Barbara

9-13 April 2009 : Invited lecturer at IPM String School "ISS2009" at Teheran, Iran

28 March 2009 : Invited speaker at JPS meeting, Rikkyo university, "Gravity dual of tachyon condensation"

19 March 2009 : Seminar at Iwasaki lab., RIKEN, "Superstring theory and its applications"

13 March 2009 : Seminar at Ebisuzaki lab., RIKEN, "Superstrings and Cosmic Strings"

25 Feb 2009 : Invited speaker at APCTP 2009 : Astro-Particle and Conformal Topical Physics held at YongPyong, Korea, 23-27 Feb 2009, "Nuclear force from string theory"

18-20 Feb 2009 : Organizing the workshop "Superstring and the Universe", at Kinosaki

17 Feb 2009 : Seminars at Tsukuba university, "Nuclear Force from String Theory"

13 Feb 2009 : Seminar at Yukawa institute, Kyoto university, "Nuclear Force from String Theory"

30 Jan 2009 : Short lecture at RIKEN Kenkyuin-Sokai, "Symmetry and elementary particles"

27 Jan 2009 : Seminar at Tokyo university, Hongo, high energy physics theory group, "Holographic Nuclei"

26 Jan 2009 : Seminar at Chuo-u,"Holographic Baryons : QCD from string theory"

8,9 Jan 2009 : Invited speaker at Sapporo Winter School 2009 at Hokkaido university, "Toward a Proof of Montonen-Olive Duality via Multiple M2-branes"

5-7 Jan 2009 : Invited lecturer at Hokkaido university, "D-branes"

20-22 Dec 2008 : Talk at RIKEN symposium "Towards New Developments in Field and String Theories", "Holographic nuclei"

2-3 Dec 2008 : Talk at KEK workshop "Heterotic String and M-Theory" at KEK, "Toward a Proof of Montonen-Olive Duality via Multiple M2-branes"

26-27 Nov 2008 : Poster presentation at workshop "Genshikaku Butsurigaku no Tenbou" at RIKEN, RIBF, "Description of nuclei by superstrings"

25 Nov 2008 : Seminar at Tokyo university, Hongo, Hadron theory group, "Holographic Nuclei"

19 Nov : Talk at Helsinki Institute of Physics, "Toward a Proof of Montonen-Olive Duality via Multiple M2-branes"

16-21 Nov : Invited to Helsinki Institute of Physics

5 Nov 2008 : Seminar at Kyoto university, "Holographic Nuclei"

26-28 Oct 2008 : Invited speaker at Joint workshop on Nuclear Structure Physics, at Shanghai Jiao Tong University, Shanghai, China, "Holographic QCD"

14 Oct 2008 : Seminar at Shinshu university "Holographic QCD: Superstring describes Quarks"

14 Oct 2008 : Lecture for undergraduates in Shinshu university

24-26 September 2008 : Invited speaker at conference "Recent Developments in String/M Theory" at KIAS, Seoul, "Toward a Proof of Montonen-Olive Duality via Multiple M2-branes"

12-16 September 2008 : Invited speaker at Focus Week on Quantum Black Holes at IPMU, "Holographic Nuclei"

10-14 August 2008 : Invited lecturer at SI 2008 pheno, at Chi-Tou, Taiwan, "AdS/CFT and its application to QCD"

3-5 August 2008 : Invited speaker at SI2008 string/cosmology, at Fuji-Yoshida, "Gravity Dual of Tachyon Condensation"

1 August 2008 : Talk at YITP workshop on QFT, "Quark Mass in Holographi QCD"

30 July 2008 : Invited lecturer at RCNP workshop "Challenge to new exotic hadrons", "Holographic QCD and Hadron Spectroscopy"

27 July - 1 August 2008 : Organizing YITP workshop on QFT

25 June 2008 : Talk at TIFR Monsoon workshop on string theory, "Quark Mass in Holographic QCD"

23-26 June 2008 : Invited to Monsoon workshop on string theory at Tata Institute of Fundamental Research (TIFR), Mumbai, India

18 June 2008 : Seminar at RIKEN theory colloqium, "The Frontiers of Superstring Theory : "D-branes" and new perspective of our world"

17 June 2008 : Seminar at Rikkyo university, "Quark mass in holographic QCD"

13-14 June : Visiting YITP, attending at a workshop "Cosmology and Superstrings"

30 May 2008 : Seminar at Pusan university, "Quark mass in holographic QCD"

28-31 May 2008 : Invited by Prof. Deog-Ki Hong, Pusan university, Korea

22 May 2008 : Seminar at Tohoku university, "Quark mass in holographic QCD"

15 May 2008 : Seminar at Tokyo university, Hongo, high energy physics theory group, "Quark mass in holographic QCD"

30 April 2008 : Seminar at Workshop "Non-perturbative Methods in Strongly Coupled Gauge Theories" at Galileo Galilei Institute, "Quark mass in holographic QCD"

29 April 2008 : Seminar at University of Pisa, "Quark mass in holographic QCD"

20 April - 11 May 2008 : Invited to Workshop "Non-perturbative Methods in Strongly Coupled Gauge Theories" at Galileo Galilei Institute

15 April 2008 : Seminar at KEK theory group, "Quark mass in holographic QCD"

22 - 26 March 2008 : Attending at JPS annual meeting at Kinki university, presenting a talk "QCD String as Vortex String in Seiberg-Dual Theory"

9 - 15 March 2008 : Invited to Workshop "QCD and high energy interactions" at Rencontres de Moriond, La Thuile, Italy

3 - 7 March 2008 : Organizing Riken seminer series on string theory

17-20 Feb 2008 : Invited lecturer at 14th ICEPP symposium

11-13 Feb 2008 : Workshop "Superstrings and the universe"

1 Feb 2008 : Seminar at Komaba, Condensed matter theory group, "D-branes"

29 Jan 2008 : Seminar at Osaka-u, "Brane Engineering of QCD String"

9-11 Jan 2008 : Invited lecturer (Shuchu Kogi) at Saga university

26-27 Dec 2007 : Invited lecturer at Shikoku seminar, "ADHM construction of instantons and D-branes"

22-23 Dec 2007 : Poster presentation at RIKEN workshop "QFT and Symmetry", "Glueball Decay in Holographic QCD"

14 Dec 2007 : Seminar at NTU, "Brane Engineering of solitons in meta-stable vacua and QCD strings"

12-19 Dec 2007 : Visiting Taipei and Hsinchu, invited by prof. Jenchi Lee

27 Nov 2007 : Seminar at KEK, "Glueball Decay in Holographic QCD"

12-16 Nov 2007 : Invited lecturer (Shuchu Kogi) at Saitama-u, mathematics department

15 Oct 2007 : Informal seminar at Riken, "Glueball Decay in Holographic QCD"

6-7 Oct 2007 : RIKEN workshop on SFT, "SFT 07"

1 Oct 2007 : I move to RIKEN !

My seminar/talk history (after coming back to Japan : Sep. 2001 - Sep. 2007)

Current interest

Mainly D-brane physics in string theory. Holographic QCD, String field theories, Tachyon condensation, (D-)brane effective field theories, Solitons in field theories and their brane correspondents, Non-commutative spaces, String dualities and field theory dualities, etc.

The brane physics gives a gleam of hope to understand non-perturbative formulations of string/M theory, and finally will lead us to the non-perturbative vacuum in it.

My SPIRES results

Research papers up to now

Transparencies of my seminars (sorry, partly in Japanese)

My hobby

I like swimming, hiking, watching movies, reading books, studying Sherlock Holmes. But these days, in holidays I spend most of time with my family, with my little daughter!

May have a nice day filled with physics!