2016
DOI: 10.1007/jhep02(2016)076
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Abstract: In order to calculate QED corrections to hadronic physical quantities by means of lattice simulations, a coherent description of electrically-charged states in finite volume is needed. In the usual periodic setup, Gauss's law and large gauge transformations forbid the propagation of electrically-charged states. A possible solution to this problem, which does not violate the axioms of local quantum field theory, has been proposed by Wiese and Polley, and is based on the use of C boundary conditions. We present … Show more

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Cited by 69 publications
(174 citation statements)
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References 55 publications
(133 reference statements)
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“…Our work has close parallels to the studies of electromagnetic corrections to the spectrum [3,4,6,8,11,12,19] where the leading [in that case Oð1=LÞ] and next-to-leading [Oð1=L 2 Þ] FV corrections are universal. In our case it is the coefficients C 0 ðr l Þ;C 0 ðr l Þ, and C 1 ðr l Þ of Eq.…”
Section: Final Result Summary and Conclusionsupporting
confidence: 53%
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“…Our work has close parallels to the studies of electromagnetic corrections to the spectrum [3,4,6,8,11,12,19] where the leading [in that case Oð1=LÞ] and next-to-leading [Oð1=L 2 Þ] FV corrections are universal. In our case it is the coefficients C 0 ðr l Þ;C 0 ðr l Þ, and C 1 ðr l Þ of Eq.…”
Section: Final Result Summary and Conclusionsupporting
confidence: 53%
“…The discussion in the previous paragraph has parallels in the calculation of the FV corrections to the spectrum [3,4,6,8,11,12,19]. In that case there are no infrared divergences and the Oð1=LÞ and Oð1=L 2 Þ FV corrections are universal, but the Oð1=L 3 Þ corrections are structure dependent.…”
Section: Introductionmentioning
confidence: 94%
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“…[18][19][20], where a charge conjugation is performed when the boundary is crossed. They lead to processes, which change the total electric charge: charge fluctuations when propagat-ing through the C-periodic boundary change their sign and thereby the total electric charge.…”
Section: Simulating On Non-orientable Manifoldsmentioning
confidence: 99%
“…Instead of the usual ψ, ψ fields, it turns out more convenient to work with the eigenstates of charge conjugation. These are the spinor fields η a , a = 1, 2, defined in [20]. In both bases we can write down the one flavor fermion action in infinite volume:…”
Section: Fermionsmentioning
confidence: 99%