Personal information

Cosmology, Gravitation, Cosmic inflation

Activities

Employment (4)

Sun Yat-Sen University: Guangzhou, Guangdong, CN

2016-09-14 to present
Employment
Source: Self-asserted source
Xian Gao

RESCEU, The University of Tokyo: Tokyo, JP

2016-01-18 to 2016-08-31
Employment
Source: Self-asserted source
Xian Gao

Tokyo Institute of Technology: Tokyo, JP

2013-10-01 to 2016-01-15
Employment
Source: Self-asserted source
Xian Gao

AstroParticule et Cosmologie: Paris, Île-de-France, FR

2010-11-01 to 2013-09-30
Employment
Source: Self-asserted source
Xian Gao

Education and qualifications (1)

Institute of Theoretical Physics Chinese Academy of Sciences: Haidian-qu, Beijing, CN

2005-09-01 to 2010-07-01
Education
Source: Self-asserted source
Xian Gao

Works (50 of 57)

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Interacting hypersurfaces and multiple scalar-tensor theories

Phys.Rev.D
2025-01-15 | Journal article | Author
OTHER-ID: 2840887
Contributors: Yang Yu; Chen, Zheng; Yu-Min Hu; Xian Gao
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INSPIRE-HEP

Parity-violating scalar-tensor theory and the Qi-Xiu

ArXiv
2024 | Journal article
Contributors: Hu, Yu-Min; Gao, Xian
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Spatial covariant gravity with two degrees of freedom in the presence of an auxiliary scalar field: Perturbation analysis

Chinese Physics C
2024 | Journal article
Contributors: Wang, Zhi-Chao; Gao, Xian
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Spatially covariant gravity with nonmetricity

ArXiv
2024 | Journal article
Contributors: Yu, Yang; Chen, Zheng; Gao, Xian
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Spatially covariant gravity with nonmetricity

The European Physical Journal C
2024 | Journal article
Contributors: Yu, Yang; Chen, Zheng; Gao, Xian
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The effective field theory approach to the strong coupling issue in<italic> f(T)</italic> gravity with a non-minimally coupled scalar field

ArXiv
2024 | Journal article
Contributors: Hu, Yu-Min; Yu, Yang; Cai, Yi-Fu; Gao, Xian
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Parity-violating scalar-tensor theory

Phys.Rev.D
2024-09-11 | Journal article | Author
OTHER-ID: 2791681
Contributors: Yu-Min Hu; Xian Gao
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Scalar induced gravitational waves in metric teleparallel gravity with the Nieh-Yan term

Phys.Rev.D
2024-07-15 | Journal article | Author
OTHER-ID: 2774085
Contributors: fg zh; Jia-Xi Feng; Xian Gao
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The effective field theory approach to the strong coupling issue in f(T) gravity with a non-minimally coupled scalar field

JCAP
2024-03-13 | Journal article | Author
OTHER-ID: 2724913
Contributors: Yu-Min Hu; Yu, Yang; Yi-Fu Cai; Xian Gao
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INSPIRE-HEP

Minimally modified gravity with auxiliary constraints formalism

Physical Review D
2023 | Journal article
Contributors: Yao, Zhi-Bang; Oliosi, Michele; Gao, Xian; Mukohyama, Shinji
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Polarized gravitational waves in the parity violating scalar-nonmetricity theory

Journal of Cosmology and Astroparticle Physics
2023 | Journal article
Contributors: Chen, Zheng; Yu, Yang; Gao, Xian
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Scalar induced gravitational waves from Chern-Simons gravity during inflation era

Journal of Cosmology and Astroparticle Physics
2023 | Journal article
Contributors: Feng, Jia-Xi; Zhang, Fengge; Gao, Xian
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Scalar induced gravitational waves in symmetric teleparallel gravity with a parity-violating term

Physical Review D
2023 | Journal article
Contributors: Zhang, Fengge; Feng, Jia-Xi; Gao, Xian
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Circularly polarized scalar induced gravitational waves from the Chern-Simons modified gravity

Journal of Cosmology and Astroparticle Physics
2022 | Journal article
Contributors: Zhang, Fengge; Feng, Jia-Xi; Gao, Xian
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Cosmological perturbations in the spatially covariant gravity with a dynamical lapse function

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Covariant 3+1 correspondence of the spatially covariant gravity and the degeneracy conditions

Physical Review D
2022 | Journal article
Contributors: Hu, Yu-Min; Gao, Xian
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Higher derivative scalar-tensor monomials and their classification

Science China: Physics, Mechanics and Astronomy
2021 | Journal article
Contributors: Gao, Xian
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Minimally modified gravity with an auxiliary constraint: A Hamiltonian construction

Physical Review D
2021 | Journal article
Contributors: Yao, Zhi-Bang; Oliosi, Michele; Gao, Xian; Mukohyama, Shinji
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Spatially covariant gravity with 2 degrees of freedom: Perturbative analysis

Physical Review D
2021 | Journal article
Contributors: Hu, Yu-Min; Gao, Xian
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Higher derivative scalar-tensor theory and spatially covariant gravity: The correspondence

Physical Review D
2020 | Journal article
Contributors: Gao, Xian; Hu, Yu-Min
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Higher derivative scalar-tensor theory from the spatially covariant gravity: a linear algebraic analysis

Journal of Cosmology and Astroparticle Physics
2020 | Journal article
Contributors: Gao, Xian
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Propagation of gravitational waves in a cosmological background

Physical Review D
2020 | Journal article
Contributors: Gao, Xian; Hong, Xun-Yang
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Spatially covariant gravity theories with two tensorial degrees of freedom: The formalism

Physical Review D
2020 | Journal article
Contributors: Gao, Xian; Yao, Zhi-Bang
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Primordial perturbations and non-gaussianities in Horava-Lifshitz gravity

Chinese Physics C
2019 | Journal article
Contributors: Gao, Xian
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Spatially covariant gravity with velocity of the lapse function: the Hamiltonian analysis

Journal of Cosmology and Astroparticle Physics
2019 | Journal article
Contributors: Gao, Xian; Yao, Zhi-Bang
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Coupling between Galileon and massive gravity with composite metrics

Physical Review D
2015 | Journal article
Contributors: Gao, Xian; Yoshida, Daisuke
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Covariant expansion of the gravitational Stückelberg trick

Physical Review D
2015 | Journal article
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Non-Gaussianity excess problem in classical bouncing cosmologies

Physical Review D
2015 | Journal article
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Towards general patterns of features in multi-field inflation

Journal of High Energy Physics
2015 | Journal article
Contributors: Gao, Xian; Gong, Jinn-Ouk
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Covariant Stückelberg analysis of de Rham-Gabadadze-Tolley massive gravity with a general fiducial metric

Physical Review D
2014 | Journal article
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Derivative interactions for a spin-2 field at cubic order

Physical Review D
2014 | Journal article
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Hamiltonian analysis of spatially covariant gravity

Physical Review D
2014 | Journal article
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Production of non-gaussianities through a positive spatial curvature bouncing phase

Journal of Cosmology and Astroparticle Physics
2014 | Journal article
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Unifying framework for scalar-tensor theories of gravity

Physical Review D
2014 | Journal article
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Coupling structure of multi-field primordial perturbations

Journal of Cosmology and Astroparticle Physics
2013 | Journal article
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Full bispectra from primordial scalar and tensor perturbations in the most general single-field inflation model

Progress of Theoretical and Experimental Physics
2013 | Journal article
Contributors: Gao, Xian; Kobayashi, Tsutomu; Shiraishi, Maresuke; Yamaguchi, Masahide; Yokoyama, Jun'ichi; Yokoyama, Shuichiro
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Oscillatory features in the curvature power spectrum after a sudden turn of the inflationary trajectory

Journal of Cosmology and Astroparticle Physics
2013 | Journal article
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Towards anisotropy-free and nonsingular bounce cosmology with scale-invariant perturbations

Physical Review D
2013 | Journal article
Contributors: Taotao Qiu; Xian Gao; Emmanuel N. Saridakis
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Influence of heavy modes on perturbations in multiple field inflation

Journal of Cosmology and Astroparticle Physics
2012 | Journal article
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IR divergences in inflation and entropy perturbations

Journal of Cosmology and Astroparticle Physics
2012 | Journal article
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Can relic superhorizon inhomogeneities be responsible for large-scale CMB anomalies?

Physics Letters B
2011 | Journal article
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Conserved cosmological perturbation in Galileon models

Journal of Cosmology and Astroparticle Physics
2011 | Journal article
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From k-essence to generalized Galileons

Physical Review D
2011 | Journal article
Contributors: Deffayet, C.; Gao, Xian; Steer, D. A.; Zahariade, G.
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Inflation and primordial non-Gaussianities of “generalized Galileons”

Journal of Cosmology and Astroparticle Physics
2011 | Journal article
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Primordial Non-Gaussianities of Gravitational Waves in the Most General Single-Field Inflation Model with Second-Order Field Equations

Physical Review Letters
2011 | Journal article
Contributors: Gao, Xian; Kobayashi, Tsutomu; Yamaguchi, Masahide; Yokoyama, Jun'ichi
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Testing gravity with non-Gaussianity

Physics Letters B
2011 | Journal article
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Cosmological perturbations in Hořava-Lifshitz gravity

Physical Review D
2010 | Journal article
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Fluctuations in a Hořava-Lifshitz bouncing cosmology

Journal of Cosmology and Astroparticle Physics
2010 | Journal article
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Nonlinear CMB temperature anisotropy from gravitational perturbations

Physical Review D
2010 | Journal article
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On cross-correlations between curvature and isocurvature perturbations during inflation

Journal of Cosmology and Astroparticle Physics
2010 | Journal article
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