78 citations · 383 across the 13 of their papers we have counts for
14 papers
QFT in AdS instead of LSZ
Balt C. van Rees, Xiang Zhao
The boundary correlation functions for a QFT in a fixed AdS background should reduce to S-matrix elements in the flat-space limit. We consider this procedure in detail for four-poi…
Odd-parity stability of black holes in Einstein-Aether gravity
Shinji Tsujikawa, Chao Zhang, Xiang Zhao +1
In Einstein-Aether theory, we study the stability of black holes against odd-parity perturbations on a spherically symmetric and static background. For odd-parity modes, there are…
Regge trajectories for the (2,0) theories
Madalena Lemos, Balt C. van Rees, Xiang Zhao
We investigate the structure of conformal Regge trajectories for the maximally supersymmetric (2,0) theories in six dimensions. The different conformal multiplets in a single super…
Landau diagrams in AdS and S-matrices from conformal correlators
Shota Komatsu, Miguel F. Paulos, Balt C. van Rees +1
Quantum field theories in AdS generate conformal correlation functions on the boundary, and in the limit where AdS is nearly flat one should be able to extract an S-matrix from suc…
Line and surface defects for the free scalar field
Edoardo Lauria, Pedro Liendo, Balt C. van Rees +1
For a single free scalar field in dimensions, almost all the unitary conformal defects must be `trivial' in the sense that they cannot hold interesting dynamics. The onl…
Spherically symmetric static black holes in Einstein-aether theory
Chao Zhang, Xiang Zhao, Kai Lin +3
In this paper, we systematically study spherically symmetric static spacetimes in the framework of Einstein-aether theory, and pay particular attention to the existence of black ho…
No static regular black holes in Einstein-complex-scalar-Gauss-Bonnet gravity
Kai Lin, Shaojun Zhang, Chao Zhang +3
In this brief report, we investigate the existence of 4-dimensional static spherically symmetric black holes (BHs) in the Einstein-complex-scalar-Gauss-Bonnet (EcsGB) gravity with…
Gravitational waves from the quasi-circular inspiral of compact binaries in Einstein-aether theory
Chao Zhang, Xiang Zhao, Anzhong Wang +5
We study gravitational waves emitted by a binary system of non-spinning bodies in a quasi-circular inspiral within the framework of Einstein-aether theory. In particular, we comput…
Gravitational waveforms and radiation powers of the triple system PSR J0337+1715 in modified theories of gravity
Xiang Zhao, Chao Zhang, Kai Lin +8
In this paper, we study the gravitational waveforms, polarizations and radiation powers of the first relativistic triple systems PSR J0337 + 1715, observed in 2014, by using the po…
Constraints of general screened modified gravities from comprehensive analysis of binary pulsars
Xing Zhang, Wen Zhao, Tan Liu +6
Testing gravity by binary pulsars nowadays becomes a key issue. Screened modified gravity is a kind of scalar-tensor theory with screening mechanism in order to satisfy the tight S…
Angular momentum loss for eccentric compact binary in screened modified gravity
Xing Zhang, Wen Zhao, Tan Liu +6
Gravitational wave (GW) observations provide insight into the gravity regime. These observations relies on the comparison of the data to the GWs model, which depends on the orbital…
Gravitational wave forms, polarizations, response functions and energy losses of triple systems in Einstein-Aether theory
Kai Lin, Xiang Zhao, Chao Zhang +7
Gravitationally bound hierarchies containing three or more components are very common in our Universe. In this paper we study {\em periodic} gravitational wave (GW) form, their pol…
Evidence of deviations from general relativity in binary pulsars?
Xing Zhang, Wen Zhao, Tan Liu +6
Testing gravitational theories by binary pulsars nowadays becomes a key issue. For the general screened modified gravity (SMG), the post-Keplerian parameters in the neutron star (N…
Waveforms of compact binary inspiral gravitational radiation in screened modified gravity
Tan Liu, Xing Zhang, Wen Zhao +6
Scalar-tensor gravity, with the screening mechanisms to avoid the severe constraints of the fifth force in the Solar System, can be described with a unified theoretical framework,…