Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Lei Hua Liu"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 11, Pp 1-19 (2024)
Abstract Pseudo-Hermitian system is a class of non-Hermitian system with Hamiltonian satisfying the condition η −1 H † η = H. We develop the in-in and Schwinger Keldysh formalism to calculate cosmological correlators for pseudo-Hermitian system
Externí odkaz:
https://doaj.org/article/2aa395e7a2104122b9f940d3ba7cee28
Autor:
Ke Gao, Lei-Hua Liu
Publikováno v:
Physics Letters B, Vol 858, Iss , Pp 139019- (2024)
The study focuses on the impact of microlensing in modern cosmology and introduces a new framework for the static spherically symmetrical wormhole in terms of the radial equation of state. Following a standard procedure, the study calculates the lens
Externí odkaz:
https://doaj.org/article/5de2a12c146d490d8df92bd2a514bf7a
Autor:
Tao Li, Lei-Hua Liu
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 4, Pp 1-29 (2024)
Abstract In this work, we have systematically investigated the Krylov complexity of curvature perturbation for the modified dispersion relation in inflation, using the algorithm in closed system and open system. Since many quantum gravitational frame
Externí odkaz:
https://doaj.org/article/3908e447413642f5a3bbea0f2a4c2365
Autor:
Tao Li, Lei-Hua Liu
Publikováno v:
Physics Letters B, Vol 854, Iss , Pp 138728- (2024)
Complexity will be more and more essential in high-energy physics. It is naturally extended into the very early universe. Considering the universe as a quantum chaotic system, the curvature perturbation of the scalar field is identified with the two-
Externí odkaz:
https://doaj.org/article/23adf52c80ec45908cf9af3f1cd5ca4c
Autor:
Lei-Hua Liu, Tomislav Prokopec
Publikováno v:
Physics Letters B, Vol 769, Iss C, Pp 281-288 (2017)
We propose gravitational microlensing as a way of testing the emergent gravity theory recently proposed by Eric Verlinde [1]. We consider two limiting cases: the dark mass of maximally anisotropic pressures (Case I) and of isotropic pressures (Case I
Externí odkaz:
https://doaj.org/article/721d94ec149f440a8918eb440dc01f3c
Publikováno v:
Physical Review
In this paper, we investigate the primordial perturbations of inflation model induced from the multi-field mimetic gravity, where there are two field during inflation, and thus both adiabatic and isocurvature perturbation modes are generated. We show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa69dc9d025a62dc9c9e549a6520cc12
http://repo.scoap3.org/api
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Publikováno v:
Physical Review D. 107
We systematically investigate the microlensing effect of charged spherically symmetric wormhole, where the light source is remote from the throat. Remarkably, there will be at most three images by considering the charge part. We study all situations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdfd1f6fdc87b550ca692f0fb0d56c1b
https://doi.org/10.1103/physrevd.107.024022
https://doi.org/10.1103/physrevd.107.024022
Autor:
Lei-Hua Liu
Publikováno v:
Chinese Physics
In light of our previous study [Chin. Phys. C 44(8), 085103 (2020)], we investigate the possibility of the formation of a primordial black hole in the second inflationary process induced by the oscillation of the curvaton. By adopting the instability
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea76ef648292d77c81eac04e5e89bb51
http://repo.scoap3.org/api
http://repo.scoap3.org/api
In this paper, we investigate the microlensing effects of wormholes associated to black hole spacetimes. Specifically, we work on three typical wormholes (WH): Schwarzschild WH, Kerr WH, and RN WH, as well as their blackhole correspondences. We evalu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98bf00f29976fecb685cf9d18bd64a12
Publikováno v:
Physical Review D. 103
We revise the non-Gaussianity of canonical curvaton scenario with a generalized $\ensuremath{\delta}N$ formalism, in which it can handle the generic potentials. In various curvaton models, the energy density is dominant in different periods including
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5932aea9df0bc1eb6c1ba2d0aadf742
https://doi.org/10.1103/physrevd.103.063515
https://doi.org/10.1103/physrevd.103.063515