7 papers
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…
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…
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…
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…