GEOMETRIC APPROACH TO QUANTUM ANOMALIES.
| Project/Area Number |
63540229
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
核・宇宙線・素粒子
|
|---|
| Research Institution | Toyota Technological Institute |
|---|
Principal Investigator |
KITAKADO Shinsaku Toyota Technological Institute, Faculty of Engng, Prof., 工学部, 教授 (20027345)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
OHNUKI Yoshio Nagoya Univ. School of Science, Prof., 理学部, 教授 (90022532)
|
|---|
| Project Period (FY) |
1988 – 1989
|
| Project Status |
Completed (Fiscal Year 1989)
|
| Budget Amount *help |
¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1989: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1988: ¥300,000 (Direct Cost: ¥300,000)
|
|---|
| Keywords | quantum anomaly / Wess-Zumino model / BRST-quantization / Chern-Simons term / topological field theory / anomalous commutator / 位相幾何学的場の理論 / BRST-量子化 / BFVの量子化法 / グラスマン数 / 統計性 / BRST / 拘束系 / Second Class Constraint. |
|---|
| Research Abstract |
Anomalous gauge theories considered as constrained systems are investigated. The effects of chiral anomaly on the canonical structure are examined first for nonlinear sigma-model and later for fermionic theory. The breakdown of Gauss law constraints and the anomalous commutators among them are studied in a systematic way.
An intrinsic mass term for gauge fields makes it possible to solve the Gauss law relations as second class constraints and to quantize the system A la Dirac. Based upon the Ward-Takahashi identities for gauge symmetry, we investigate anomalous fermionic theory within the framework of path integral approach.
As a second topic, we have BRST-quantized the topological Yang-Mills theory in four dimensions and the topological sigma-model in two dimensions, using the generalized Hamiltonian formalism developed by Batalin, Fradkin and Vilkovisky.
|
Report
(3 results)
Research Products
(22 results)
