• Corpus ID: 15638071

Computation of the quantum effects due to a four-dimensional pseudoparticle

@inproceedings{tHooft2011ComputationOT,
  title={Computation of the quantum effects due to a four-dimensional pseudoparticle},
  author={Gerard ’t Hooft},
  year={2011}
}
A detailed quantitative calculation is carried out of the tunneling process described by the Belavin-PolyakovSchwarz-Tyupkin field configuration. A certain chiral symmetry is violated as a consequence of the AdlerBell-Jackie anomaly. The collective motions of the pseudoparticle and all contributions from single loops of scalar, spinor, and vector fields are taken into account. The result is an effective interaction Lagrangian for the spinors. 
hep.princeton.edu
278 Citations
Highly Influential Citations
20
Background Citations
108
Methods Citations
26
Results Citations
1

278 Citations

Citation Type

Citation Type

Quantum loop expansion to high orders, extended Borel summation, and comparison with exact results.
TLDR
It is found that there are exponentially small corrections to the loop expansion, which cannot be explained by any obvious "instanton"-type corrections and is found to be surprising and puzzling.
Taming the zoo of supersymmetric quantum mechanical models
A bstractWe show that in many cases nontrivial and complicated supersymmetric quantum mechanical (SQM) models can be obtained from the simple model describing free dynamics in flat complex space by…
Thermal Schwinger pair production at arbitrary coupling
We calculate the rate of thermal Schwinger pair production at arbitrary coupling in weak external fields. Our calculations are valid independently of many properties of the charged particles…
One-loop and D-instanton corrections to the effective action of open string models
One-loop corrections to the gauge coupling and the gauge kinetic function in certain classes of four-dimensional D-brane models are computed. It is described how to determine D-instanton corrections…
The Chern-Simons Number as a Dynamical Variable
In the standard electroweak theory that describes nature, the Chern-Simons number associated with the vacua as well as the unstable sphaleron solutions play a crucial role in the baryon number…
Tetraquark Spectroscopy: A Symmetry Analysis
We present a detailed analysis of the symmetry properties of a four-quark wave function and its solution by means of a variational approach for simple Hamiltonians. We discuss several examples in the…
Confinement, chiral symmetry, and the lattice
Two crucial properties of QCD, confinement and chiral symmetry breaking, cannot be understood within the context of conventional Feynman perturbation theory. Non-perturbative phenomena enter the…
Ultraviolet filtering of lattice configurations and applications to Monte Carlo dynamics
We present a detailed study of a filtering method based upon Dirac quasi-zeromodes in the adjoint representation. The procedure induces no distortions on configurations which are solutions of the…
Quantum string test of nonconformal holography
A bstractWe compute Lüscher corrections to the effective string tension in the PilchWarner background, holographically dual to N$$ \mathcal{N} $$ = 2∗ supersymmetric Yang-Mills theory. The same…
Exploring instantons with spin-lattice systems
Instanton processes are present in a variety of quantum field theories relevant to high energy as well as condensed matter physics. While they have led to important theoretical insights and physical…
...
...