Emergence of spacetime in superstring theory

• Project/Area Number: 19740135
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Shinshu University
• Principal Investigator: OKUYAMA Kazumi Shinshu University, 理学部, 助教 (70447720)
• Project Period (FY): 2007 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥2,450,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥450,000); Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2007: ¥500,000 (Direct Cost: ¥500,000)
• Keywords: 超弦理論 / 超対称ゲージ理論 / F(uzz)理論 / ファジーなdel Pezzo曲面 / 箙ゲージ理論 / N=4超対称ゲージ理論 / グローバルAdS / ウィルソンループ / ホログラフィー / 線形シグマ模型 / 8次元オービフォールド / ミラー曲線の量子化 / q変形された調和振動子 / 重力の量子論 / インスタントン / BTZブラックホールの足し上げ

Research Abstract

I have studied the emergence of spacetime in string theory from various viewpoints. (1) I constructed an instanton solution in a system of gavity coupled to a scalar field with the 1/cosh type potential. (2) I showed that the BPS state counting on the N M5-branes wrapped on T(2)xK3 can be interpreted as a sum over BTZ blackholes on the dual gravity side. (3) I constructed a linear sigma model for the hyperKahler manifold with R(8)/Z(k) orbifold singularity. (4) I found that the q-deformed oscillators act on the wavefunction of D-branes in the topological string on conifold. (5) I analyzed the global AdS picture of the worldsheet which is dual to a 1/2 BPS Wilson loop in N=4 super Yang-Mills. (6) I constructed D-branes wrapped on fuzzy del Pezzo surfaces as classical solutions in a quiver gauge theory.

Research Products

• [Journal Article] D-branes Wrapped on Fuzzy del Pezzo Surfaces (2011)
  • Author(s): 奥山和美、古内一之
  • Journal Title: JHEP 1101 Pages: 43-43
  • Peer Reviewed
• [Journal Article] D-branes Wrapped on Fuzzy del Pezzo Surfaces (2011)
  • Author(s): K.Furuuchi, K.Okuyama
  • Journal Title: Journal of High Energy Physics Volume: 1101 Pages: 43-86
  • Peer Reviewed
• [Journal Article] Global AdS Picture of 1/2 BPS Wilson Loops (2010)
  • Author(s): 奥山和美
  • Journal Title: JHEP 1001 Pages: 96-96
  • NAID: 120007114278
  • Peer Reviewed
• [Journal Article] Global AdS Picture of 1/2 BPS Wilson Loops (2010)
  • Author(s): 奥山和美
  • Journal Title: JHEP 01 Pages: 96-96
  • NAID: 120007114278
  • Peer Reviewed
• [Journal Article] Global AdS Picture of 1/2 BPS Wilson Loops (2010)
  • Author(s): Kazumi Okuyama
  • Journal Title: Journal of High Energy Physics 01 Pages: 96-109
  • NAID: 120007114278
  • Peer Reviewed
• [Journal Article] q-Deformed Oscillators and D-branes on Conifold (2009)
  • Author(s): 奥山和美
  • Journal Title: Phys. Lett. B673 Pages: 232-236
  • NAID: 120007114279
  • Peer Reviewed
• [Journal Article] q-deformed oscillators and D-branes on conifold (2009)
  • Author(s): 奥山和美
  • Journal Title: Phys. Lett. B 673 Pages: 232-236
  • NAID: 120007114279
  • Peer Reviewed
• [Journal Article] q-Deformed Oscillators and D-branes on Conifold (2009)
  • Author(s): Kazumi Okuyama
  • Journal Title: Physics Letters B 673 Pages: 232-236
  • NAID: 120007114279
  • Peer Reviewed
• [Journal Article] Linear Sigma Models for the R8/Zk Orbifold (2008)
  • Author(s): 奥山和美
  • Journal Title: Phys. Lett. B668 Pages: 153-158
  • Peer Reviewed
• [Journal Article] N=4 SYM on K3 and AdS(3)/CFT(2) Correspondence (2008)
  • Author(s): 奥山和美
  • Journal Title: JHEP 0802 Pages: 36-36
  • Peer Reviewed
• [Journal Article] Instanton solution in tachyon cosmology (2008)
  • Author(s): 奥山和美
  • Journal Title: Phys. Lett. B658 Pages: 241-243
  • Peer Reviewed
• [Journal Article] Linear Sigma Models for the R(8)/Z(k) Orbifold (2008)
  • Author(s): 奥山和美
  • Journal Title: Phys. Lett. B 668 Pages: 153-158
  • Peer Reviewed
• [Journal Article] N=4 SYM on K3 and the AdS(3)/CFT(2) Correspondence (2008)
  • Author(s): 奥山和美
  • Journal Title: JHEP 02 Pages: 36-36
  • Peer Reviewed
• [Journal Article] Instanton solution in tachyon cosmology (2008)
  • Author(s): 奥山和美
  • Journal Title: Phys. Lett. B 658 Pages: 241-243
  • Peer Reviewed
• [Journal Article] Linear Sigma Models for the R(8)/Z(k) Orbifold (2008)
  • Author(s): Kazumi Okuyama
  • Journal Title: Physics Letters B 668 Pages: 153-158
  • Peer Reviewed
• [Journal Article] N=4 SYM on K3 and the AdS(3)/CFT(2) Correspondence (2008)
  • Author(s): Kazumi Okuyama
  • Journal Title: Journal of High Energy Physics 0802 Pages: 36-36
  • Peer Reviewed
• [Journal Article] Instanton Solution in Tachyon Cosmology (2007)
  • Author(s): Kazumi Okuyama
  • Journal Title: Physics Letters B 654 Pages: 241-243
  • Peer Reviewed
• [Remarks] ホームページ等
  • URL: http://azusa.shinshu-u.ac.jp/-kazumi/