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Applications of basis light-front quantization to QED

J.P. Vary ; X. Zhao ; Anton Ilderton (Institutionen för teknisk fysik, Kondenserade materiens teori) ; H. Honkanen ; P. Maris ; S.J. Brodsky
Nuclear Physics B - Proceedings Supplements (0920-5632). Vol. 251-252 (2014), p. 10-15.
[Artikel, refereegranskad vetenskaplig]

Hamiltonian light-front quantum field theory provides a framework for calculating both static and dynamic properties of strongly interacting relativistic systems. Invariant masses, correlated parton amplitudes and time-dependent scattering amplitudes, possibly with strong external time-dependent fields, represent a few of the important applications. By choosing the light-front gauge and adopting an orthonormal basis function representation, we obtain a large, sparse, Hamiltonian matrix eigenvalue problem for mass eigenstates that we solve by adapting ab initio no-core methods of nuclear many-body theory. In the continuum limit, the infinite matrix limit, we recover full covariance. Guided by the symmetries of light-front quantized theory, we adopt a two-dimensional harmonic oscillator basis for transverse modes that corresponds with eigensolutions of the soft-wall anti-de Sitter/quantum chromodynamics (AdS/QCD) model obtained from light-front holography. We outline our approach and present results for non-linear Compton scattering, evaluated non-perturbatively, where a strong and time-dependent laser field accelerates the electron and produces states of higher invariant mass i.e. final states with photon emission. © 2014.



Denna post skapades 2015-05-05.
CPL Pubid: 216504

 

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Institutioner (Chalmers)

Institutionen för teknisk fysik, Kondenserade materiens teori (1900-2015)

Ämnesområden

Fysik

Chalmers infrastruktur