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Showing 2012 · hep-thShow all
2 papers · 2 filters
hep-th2012★ 22 cited
Eisenstein series for infinite-dimensional U-duality groups
Philipp Fleig, Axel Kleinschmidt
We consider Eisenstein series appearing as coefficients of curvature corrections in the low-energy expansion of type II string theory four-graviton scattering amplitudes. We define…
hep-th2012★ 2 cited
The Unruh-deWitt Detector and the Vacuum in the General Boundary formalism
Ralf Banisch, Frank Hellmann, Dennis Raetzel
We discuss how to formulate a condition for choosing the vacuum state of a quantum scalar field on a timelike hyperplane in the general boundary formulation (GBF) using the couplin…