5 papers
BPS Invariants for Generalized Toric Calabi-Yau Threefolds
Antoine Bourget, Peng Cheng, Quentin Lamouret
We apply topological vertex techniques to Calabi-Yau threefolds dual to brane webs where several 5-branes can end on the same 7-brane. In this context, we determine how topological…
The stringy geometry of integral cohomology in mirror symmetry
Peng Cheng, Ilarion V. Melnikov, Ruben Minasian
We examine the physical significance of torsion co-cycles in the cohomology of a projective Calabi-Yau three-fold for the (2,2) superconformal field theory (SCFT) associated to the…
Gravitational partition function under volume constraints
Shan-Ping Wu, Peng Cheng, Shao-Wen Wei
The Euclidean action provides a bridge between gravitational thermodynamics and the partition function. In this work, we further investigate the gravitational partition function un…
Integral cubic form of 5D minimal supergravities and non-perturbative anomalies in 6D (1,0) theories
Peng Cheng, Michael N. Milam, Ruben Minasian
A five-dimensional minimal supergravity theory coupled to vector and hypermultiplets is specified by a set of trilinear couplings, given by an intersection form , and grav…
Scattering Hawking Radiation
Peng Cheng
We analyze the physical consequences of scattering Hawking radiation emitted in the vicinity of the horizon of a Schwarzschild black hole. The Hawking radiation from the horizon be…