Complex langevin method and its validity in removing the sign problem
| dc.contributor.author | Dadwal, Gaurav | |
| dc.date.accessioned | 2022-10-18T05:20:42Z | |
| dc.date.available | 2022-10-18T05:20:42Z | |
| dc.date.issued | 2022-04 | |
| dc.description.abstract | Numerical simulations of theories with complex action has been a long standing prob- lem in theoretical physics. The failure of Monte Carlo method for complex actions has earned this problem a name - the sign problem. In this project, we explore a numerical method, which is recently being used to simulate complex actions - the complex Langevin method. Numerical simulations of theories with complex actions are done on a point and on a lattice. The mathematical justification of the complex Langevin method is studied and numerical simulations are validated based on its correctness criteria. The results are obtained for the plaquette observable for a SU(2) Yang Mills in two dimensions with com- plex coupling. The project also serves as a review on the complex Langevin method and its numerical implementations. | en_US |
| dc.guide | Joseph, Anosh | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/4245 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | IISER Mohali | en_US |
| dc.subject | Complex | en_US |
| dc.subject | langevin | en_US |
| dc.subject | sign problem | en_US |
| dc.title | Complex langevin method and its validity in removing the sign problem | en_US |
| dc.type | Thesis | en_US |