Spontaneous supersymmetry breaking in the 2D N=1 Wess-Zumino model.

نویسندگان

  • Kyle Steinhauer
  • Urs Wenger
چکیده

We study the phase diagram of the two-dimensional N=1 Wess-Zumino model on the lattice using Wilson fermions and the fermion loop formulation. We give a complete nonperturbative determination of the ground state structure in the continuum and infinite volume limit. We also present a determination of the particle spectrum in the supersymmetric phase, in the supersymmetry broken phase and across the supersymmetry breaking phase transition. In the supersymmetry broken phase, we observe the emergence of the Goldstino particle.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Finite-Temperature Supersymmetry: The Wess-Zumino Model

We investigate the breakdown of supersymmetry at finite temperature. While it has been proven that temperature always breaks supersymmetry, the nature of this breaking is less clear. On the one hand, a study of the Ward-Takahashi identities suggests a spontaneous breakdown of supersymmetry without the existence of a Goldstino, while on the other hand it has been shown that in any supersymmetric...

متن کامل

Dynamical supersymmetry breaking and phase diagram of the lattice Wess-Zumino model

We study dynamical supersymmetry breaking and the transition point by non-perturbative lattice techniques in a class of two-dimensional N = 1 Wess-Zumino model. The method is based on the calculation of rigorous lower bounds on the ground state energy density in the infinite-lattice limit. Such bounds are useful in the discussion of supersymmetry phase transition. The transition point is determ...

متن کامل

ar X iv : h ep - t h / 92 06 07 2 v 2 2 3 Ju n 19 92 McGill / 92 – 21 hep - th / 9206072 WORMHOLES AND

We derive an effective local operator produced by certain wormhole instantons in a theory containing a massless Wess-Zumino multiplet coupled to N=1 su-pergravity. The induced interactions are D terms, and hence will not lead to spontaneous supersymmetry breaking. We conclude that supersymmetry suppresses wormhole-induced matter couplings.

متن کامل

The two-dimensional Wess-Zumino model in the Hamiltonian lattice formulation

Most studies of lattice field theory are performed in the well-known Lagrangian formalism, discretizing both space and time. We feel that it is important not to neglect the Hamiltonian formalism [1], which affords, e.g., a more immediate approach to the mass spectrum and to the implementation of fermions; numerical methods are quite different in the Lagrangian and in Hamiltonian formalism, and ...

متن کامل

A Hamiltonian lattice study of the two-dimensional Wess-Zumino model

We investigate a Hamiltonian lattice version of the two-dimensional Wess-Zumino model by Quantum Monte Carlo simulations. In order to study the pattern of supersymmetry breaking, we measure the ground state energy and the correlation length along a trajectory approaching the continuum limit. The algorithm is very effective in measuring the ground state energy, and adequate for the correlation l...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Physical review letters

دوره 113 23  شماره 

صفحات  -

تاریخ انتشار 2014