18 citations · 66 across the 12 of their papers we have counts for
12 papers
Dai-Freed anomalies and level matching in heterotic asymmetric orbifolds
Peng Cheng, Hector Parra De Freitas
We study asymmetric orbifolds of the heterotic string from the perspective of worldsheet Dai-Freed anomalies. Focusing on cyclic symmetries that…
Circumventing the black hole hair-loss problem
Peng Cheng
We provide a possible way of avoiding the hair-loss problem by studying gauge fluctuations on a classical Schwarzschild black hole background. The hair-loss problem arises due to t…
Flat F-theory and friends
Peng Cheng, Ilarion V. Melnikov, Ruben Minasian
We discuss F-theory backgrounds associated to flat torus bundles over Ricci-flat manifolds. In this setting the F-theory background can be understood as a IIB orientifold with a la…
Replica wormhole as a vacuum-to-vacuum transition
Yang An, Peng Cheng
The recent developments related to the black hole information paradox have brought us a confusing object: the replica wormhole. We are trying to better understand the object from t…
Gauge theories with non-trivial boundary conditions: Black holes
Peng Cheng
We study the partition function and entropy of U(1) gauge theories with multiple boundaries on the black holes background. The nontrivial boundary conditions allow residual zero lo…
A black hole toy model with non-local and boundary modes from non-trivial boundary conditions
Peng Cheng
We study gauge theories between two parallel boundaries with non-trivial boundary conditions, which serve as a toy model for black hole background with two boundaries near the hori…
Soft gluon theorems in curved spacetime
Peng Cheng, Pujian Mao
In this paper, we derive a soft gluon theorem in the near horizon region of the Schwarzschild black hole from the Ward identity of the near horizon large gauge transformation. The…
Contact interaction analysis of octet baryon axialvector and pseudoscalar form factors
Peng Cheng, Fernando E. Serna, Zhao-Qian Yao +3
Octet baryon axial, induced pseudoscalar, and pseudoscalar form factors are computed using a symmetry-preserving treatment of a vectorvector contact interaction (SCI),…
Notes on Wormhole Cancellation and Factorization
Peng Cheng, Pujian Mao
In AdS/CFT, partition functions of decoupled CFTs living on separate asymptotic boundaries factorize. However, the presence of bulk wormholes connecting different boundaries tends…
Flat equivariant gerbes: holonomies and dualities
Peng Cheng, Ilarion V. Melnikov, Ruben Minasian
We examine the role of global topological data associated to choices of holonomy for flat gauge fields in string compactification. Our study begins with perturbative string compact…
Soft theorems in curved spacetime
Peng Cheng, Pujian Mao
In this paper, we derive a soft photon theorem in the near horizon region of the Schwarzschild black hole from the Ward identity of the near horizon large gauge transformation. The…
Evaporating black holes and late-stage loss of soft hair
Peng Cheng
We present a paradox for evaporating black holes, which is common in most schemes trying to avoid the firewall by decoupling early and late radiation. At the late stage of the blac…