| 日時: |
2010-06-14 16:00 - 17:00 |
| 場所: |
研究本館１階、会議室1 |
| 会議名: |
Noncommutative Gravity with Torsion and Vortex Solitons |
| 連絡先: |
木村、tetsuji AT post.kek.jp |
| 講演者: |
Dr. Mohab Abou-Zeid (Leibniz University Hannover) |
| 講演言語: |
英語 |
| アブストラクト: |
A Lorentzian theory of noncommutative gravity with torsion coupled to U(1)★ Chern-Simons gauge fields and charged matter is investigated. The construction is a generalisation of the well-known relationship between three-dimensional gravity and Chern-Simons theory and it can be viewed as a toy model for a noncommutative deformation of the U(2) × U(2) Aharony-Bergman-Jafferis-Maldacena model. Utilising the Harvey-Kraus-Larsen solution-generating technique, BPS solutions of the field equations are constructed which are exact for all values of the noncommutativity parameter θ, regular for θ ≠ 0 and singular in the limit θ → 0. The gravitational interpretation of the solutions is discussed. |
