135 citations · 207 across the 16 of their papers we have counts for
16 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…
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…
QED Effects on Kerr-Newman Black Hole Shadows
Shaobing Yuan, Changkai Luo, Zezhou Hu +2
Incorporating first-order QED effects, we explore the shadows of Kerr-Newman black holes with a magnetic charge through the numerical backward ray-tracing method. Our investigation…
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).…
Polarized images of charged particles in vortical motions around a magnetized Kerr black hole
Zhenyu Zhang, Yehui Hou, Zezhou Hu +2
In this work, we study the images of a Kerr black hole (BH) immersed in uniform magnetic fields, illuminated by the synchrotron radiation of charged particles in the jet. We partic…
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,…
Circular orbits and polarized images of charged particles orbiting Kerr black hole with a weak magnetic field
Tsai-Chen Lee, Zezhou Hu, Minyong Guo +1
In this work, we study circular motions of charged particles and their polarized images around the Kerr black hole immersed in a weak magnetic field. We pay special attention to th…
Polarized Images of Synchrotron Radiations in Curved Spacetime
Zezhou Hu, Yehui Hou, Haopeng Yan +2
In this work, we derive two formulas encoding the polarization direction and luminosity of synchrotron radiations from the moving electrons in curved spacetime under the geometric…
Photon emissions from near-horizon extremal and near-extremal Kerr equatorial emitters
Haopeng Yan, Zezhou Hu, Minyong Guo +1
We consider isotropic and monochromatic photon emissions from equatorial emitters moving along future-directed timelike geodesics in the near-horizon extremal Kerr (NHEK) and near-…
QED Effects on Kerr Black Hole Shadows immersed in uniform magnetic fields
Zhen Zhong, Zezhou Hu, Haopeng Yan +2
In this work, taking the QED effect into account, we investigate the shadows of the Kerr black holes immersed in uniform magnetic fields through the numerical backward ray-tracing…
QED Effect on Black Hole Shadow
Zezhou Hu, Zhen Zhong, Peng-Cheng Li +2
In this work, taking the QED effect into account, we investigate the shadows of the static black hole with magnetic monopoles and neutral black holes in magnetic fields through the…