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Nonperturbative Tests of Three-Dimensional Dualities (1003.5694v2)

Published 29 Mar 2010 in hep-th

Abstract: We test several conjectural dualities between strongly coupled superconformal field theories in three dimensions by computing their exact partition functions on a three-sphere as a function of Fayet-Iliopoulos and mass parameters. The calculation is carried out using localization of the path integral and the matrix model previously derived for superconformal N = 2 gauge theories. We verify that the partition functions of quiver theories related by mirror symmetry agree provided the mass parameters and the Fayet-Iliopoulos parameters are exchanged, as predicted. We carry out a similar calculation for the mirror of N = 8 super-Yang-Mills theory and show that its partition function agrees with that of the ABJM theory at unit Chern-Simons level. This provides a nonperturbative test of the conjectural equivalence of the two theories in the conformal limit.

Citations (303)

Summary

  • The paper confirms mirror symmetry in 3D supersymmetric gauge theories by rigorously matching partition functions of dual quiver models.
  • It employs path integral localization and matrix model formulations to derive exact results where traditional perturbative methods are insufficient.
  • The study extends its findings to reveal the equivalence between N=8 SYM and ABJM theory, offering deeper insights into dualities and brane dynamics.

An Analytical Examination of Nonperturbative Tests of Three-Dimensional Dualities

The work jointly authored by Kapustin, Willett, and Yaakov offers a rigorous mathematical exploration of conjectural dualities present in three-dimensional supersymmetric gauge theories. The paper meticulously examines the partition functions of various superconformal field theories positioned on a three-sphere, leveraging the techniques of path integral localization and matrix model formulations. The aim is to affirm dualities such as mirror symmetry, particularly in strongly coupled scenarios where typical perturbative methods are insufficient.

The paper begins by addressing dualities in 3D supersymmetric quiver gauge theories, focusing on theoretical predictions regarding their partition functions. A central aspect of this examination is the interplay of Fayet-Iliopoulos (FI) and mass parameters, which are exchanged in mirror-symmetric pairs. The authors successfully verify these predictions, notably matching the partition functions of theories theoretically related by mirror symmetry. This confirmation is crucial because it provides concrete, nonperturbative evidence supporting these dualities and the conjectures surrounding them.

An interesting extension of their analysis involves N = 8 super-Yang-Mills (SYM) theory and its relationship to the ABJM theory at unit Chern-Simons level. By comparing partition function results from the nonperturbative configurations and utilizing known results about ABJM theory's structure, the research effectively asserts the conjectured equivalence between these two theories in the conformal limit. The agreement between their findings and theoretical expectations adds a significant piece to the puzzle of understanding the holographic nature of these gauge theories and their M2-brane constructions.

In terms of numerical findings, the exact calculations highlight the significance of the parameters involved. For instance, the intricate role of the FI and mass parameters in determining dual observables is well emphasized. Their results, especially aligning partition functions under parameter exchanges, not only support theoretical conjectures but also lay groundwork for future inquiry into the nonperturbative dynamics of gauge theories in diverse dimensions.

The implications of this research are multifaceted. Practically, it enhances our capacity to conduct accurate calculations within these complicated theoretical frameworks. Theoretically, it challenges the community to deepen their understanding of multi-dimensional dualities and their physical realizations. It also encourages the development of new technologies and formalisms in quantum field theory computation.

Moving forward, the exploration into dualities in 3D theories may well drive a deeper comprehension of the underlying symmetries and constraints that govern quantum fields in more intricate setting like higher dimensions or varying topologies. Additionally, there is potential for these findings to influence string theory and M-theory domains, particularly in areas relating to brane dynamics and compactification schemes.

In sum, this comprehensive paper offers substantial evidence supporting three-dimensional dualities and presents a computational methodology that widens the scope of feasible research in high-energy theoretical physics. This assists in reinforcing the conjectures defining the structure and interactions of fundamental particles and forces within the framework of supersymmetry and beyond.