Physics – Quantum Physics
Scientific paper
Mar 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aps..apr.e1054h&link_type=abstract
American Physical Society, APS April Meeting 2012, March 31-Apr 3, 2012, abstract #E1.054
Physics
Quantum Physics
Scientific paper
This work starts from the premise that a nonlinear interaction term in classical and quantum field theory generates harmonics, analogous to harmonic generation in nonlinear optical media. This calls for a generalization of the standard plane wave basis set to anharmonic waves. Three simple requirements are found that make anharmonic waves compatible with relativistic field theory and quantum physics [1]. The most general class of anharmonic waves allows for a zero frequency term in the Fourier series, which corresponds to a quantum field with a non-zero vacuum expectation value. Compatibility with standard quantum electrodynamics is demonstrated by generalizing the Feynman rules to anharmonic waves [2]. But anharmonic waves should be most useful for tackling intrinsically non-perturbative phenomena.[4pt] [1] F. J. Himpsel, arXiv:1108.1736v1 [hep-th] (2011).[0pt] [2] F. J. Himpsel, arXiv:1112.6216v1 [hep-th] (2011).
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