135 citations · 207 across the 16 of their papers we have counts for
9 papers · 1 filter
Holography in flipped AdS/: Another approach to dS holography
Bin Chen, Zezhou Hu, Xin-Cheng Mao +1
Motivated by the subtleties in the conventional dS/CFT correspondence, we explore analytic continuation as a constructive route to de Sitter holography. We show that quantum field…
Quantum Anomalies of Tensionless Bosonic Strings
Bin Chen, Zezhou Hu
We systematically investigate and compare the worldsheet actions, BRST structures and the quantum anomalies of four different formulations of tensionless () bosonic string t…
Symmetries and Critical Dimensions of Tensionless Branes
Bin Chen, Zezhou Hu
In this work, we investigate the worldsheet symmetry of bosonic brane theories and its quantum consistency in the tensionless limit. We find that the residual worldsheet symmetry a…
Quantum field theory in flat spacetime with multiple time directions
Bin Chen, Zezhou Hu, Xin-Cheng Mao
This letter serves as the generalization of the work 2505.16436, where we investigated the quantum field theory in Klein space which has two time directions. We extend studies to t…
QFT in Klein space
Bin Chen, Zezhou Hu, Xin-Cheng Mao
In this paper, we investigate the quantum field theory in Klein space that has two time directions. To study the canonical quantization, we select the ``length of time" as the…
Carrollian superstring in the flipped vacuum
Bin Chen, Zezhou Hu
In this work, we study the spectrum of the Carrollian superstring in the flipped vacuum (the highest-weight representation) in detail. The target spacetime of the Carrollian string…
Bulk reconstruction in flat holography
Bin Chen, Zezhou Hu
In this note, we discuss the bulk reconstruction of massless free fields in flat space from the highest-weight representation of boundary Carrollian conformal field theory (CCFT).…
Path-integral quantization of tensionless (super) string
Bin Chen, Zezhou Hu, Zhe-fei Yu +1
In this work, we study the tensionless (super)string in the formalism of path-integral quantization. We introduce BMS and ghosts intrinsically by accounting for the Fadde…
On emergent conformal symmetry near the photon ring
Bin Chen, Yehui Hou, Zezhou Hu
In this note we revisit the emergent conformal symmetry in the near-ring region of warped spacetime. In particular, we propose a novel construction of the emergent near-ring $sl(2,…