• Corpus ID: 119408347

Light-cone zero modes revisited

@article{Heinzl2003LightconeZM,
  title={Light-cone zero modes revisited},
  author={Th. Heinzl},
  journal={arXiv: High Energy Physics - Theory},
  year={2003}
}
  • T. Heinzl
  • Published 17 October 2003
  • Physics
  • arXiv: High Energy Physics - Theory
The vacuum problem of light-cone quantum field theory is reanalysed from a functional-integral point of view. 

Figures from this paper

The non-triviality of the vacuum in light-front quantization: An elementary treatment

It is often stated that the vacuum is trivial when light-front (null-plane) quantization is applied to a quantum field theory, in contrast to the situation with equal-time quantization. In fact, it

Lightcone effective Hamiltonians and RG flows

We present a prescription for an effective lightcone (LC) Hamiltonian that includes the effects of zero modes, focusing on the case of Conformal Field Theories (CFTs) deformed by relevant operators.

Lightcone effective Hamiltonians and RG flows

A bstractWe present a prescription for an effective lightcone (LC) Hamiltonian that includes the effects of zero modes, focusing on the case of Conformal Field Theories (CFTs) deformed by relevant

Localisation in worldline pair production and lightfront zero-modes

A bstractThe nonperturbative probability of pair production in electric fields depending on lightfront time is given exactly by the locally constant approximation. We explain this by showing that the

Gluon helicity flip in a plane wave background

A bstractWe compute the leading probability for a gluon to flip helicity state upon traversing a background plane wave gauge field in pure Yang-Mills theory and QCD, with an arbitrary number of

Nonperturbative matching between equal-time and lightcone quantization

We investigate the nonperturbative relation between lightcone (LC) and standard equal-time (ET) quantization in the context of λϕ4 theory in d = 2. We discuss the perturbative matching between bare

Introduction to Lightcone Conformal Truncation: QFT Dynamics from CFT Data

We both review and augment the lightcone conformal truncation (LCT) method. LCT is a Hamiltonian truncation method for calculating dynamical quantities in QFT in infinite volume. This document is a

Pair production in laser fields : finite size effects

We discuss pair creation in a strong laser background, using lightfront field theory. We show that all the physics is contained in the lightfront momentum transfer from the laser, and probe, to the

Cancellation of Glauber gluon exchange in the double Drell-Yan process

A bstractAn essential part of any factorisation proof is the demonstration that the exchange of Glauber gluons cancels for the considered observable. We show this cancellation at all orders for

References

SHOWING 1-3 OF 3 REFERENCES

The Light-Cone Effective Potential

It is shown how to calculate simple vacuum diagrams in light-cone quantum field theory. As an application, I consider the one-loop effective potential of phi^4 theory. The standard result is

Light cone nucleon wave function in the quark-soliton model

A b s t r a c t The light-cone wave function of the nucleon is calculated in the limit Nc → ∞ in the quark-soliton model inspired by the theory of the instanton vacuum of QCD. The technique of the