1 citations · 1 across the 3 of their papers we have counts for
4 papers
A Graphical Coaction for FRW Wavefunction Coefficients
Andrew McLeod, Andrzej Pokraka, Lecheng Ren
We show that the wavefunction of the universe in theories of conformally coupled scalars in power-law Friedmann-Robertson-Walker (FRW) cosmologies satisfies a graphical coaction, b…
Superstring amplitudes from the field-theory limit: an n-point map at one loop
Ricardo Monteiro, Lecheng Ren
Are perturbative superstring amplitudes for massless external states just an dressing of super-Yang-Mills/supergravity? This is the case at tree level, where the worldsheet co…
A double copy from twisted (co)homology at genus g
Andrzej Pokraka, Lecheng Ren, Carlos Rodriguez
We study a family of generalized hypergeometric integrals defined on punctured Riemann surfaces of genus g. These integrals are closely related to g-loop string amplitudes in chira…
Superstring amplitudes from BCJ numerators at one loop
Yvonne Geyer, Jiachen Guo, Ricardo Monteiro +1
We find a direct map that determines moduli-space integrands for one-loop superstring amplitudes in terms of field-theory loop integrands in the BCJ form. The latter can be compute…