Zobrazeno 1 - 10
of 725
pro vyhledávání: '"BAO Fei"'
Publikováno v:
Xiehe Yixue Zazhi, Vol 14, Iss 5, Pp 1031-1037 (2023)
Objective To investigate the effect of different acupuncture methods on gastric juice drainage in patients with grade C delayed gastric emptying (DGE) after pancreaticoduodenectomy. Methods This was a retrospective cohort study of patients with grade
Externí odkaz:
https://doaj.org/article/21d781a970da49e2a7dfa0c024e76145
In order to investigate the potential observational signals of different regularization ambiguities in loop quantum cosmological models, we systematically compute and compare the primordial scalar power spectra and the resulting angular power spectra
Externí odkaz:
http://arxiv.org/abs/2405.12296
Electrodynamics with violations of Lorentz and U(1) gauge symmetries and their Hamiltonian structure
This article aims to study the Lorentz/U(1) gauge symmetry-breaking electrodynamics in the framework of the Standard-Model Extension and analyze the Hamiltonian structure for the theory with a specific dimension $d\leq 4$ of Lorentz breaking operator
Externí odkaz:
http://arxiv.org/abs/2311.12357
Autor:
Li, Bao-Fei, Singh, Parampreet
Modifications to the Mukhanov-Sasaki equation in loop quantum cosmology (LQC) have been phenomenologically explored using polymerization of the connection and related variables in the classical expressions in order to capture the quantum gravity effe
Externí odkaz:
http://arxiv.org/abs/2310.18408
Autor:
Pan, Rui, Marchetta, John Joseph, Saeed, Jamal, Cleaver, Gerald, Li, Bao-Fei, Wang, Anzhong, Zhu, Tao
Publikováno v:
Universe 2023, 9 (11), 471
In this paper, we study analytical approximate solutions of the second-order homogeneous differential equations with the existence of only two turning points (but without poles), by using the uniform asymptotic approximation (UAA) method. To be more
Externí odkaz:
http://arxiv.org/abs/2309.03327
Autor:
Li, Bao-Fei, Singh, Parampreet
The occurrence of singularities where spacetime curvature becomes infinite and geodesic evolution breaks down are inevitable events in classical general relativity (GR) unless one chooses an exotic matter violating weak energy condition. These singul
Externí odkaz:
http://arxiv.org/abs/2304.05426
Based on the effective dynamics in the $\bar \mu$ scheme of the spherical symmetry reduced model in the reduced phase space formulation of loop quantum gravity (LQG), we investigate the gravitational collapse of a homogeneous dust cloud, with Gaussia
Externí odkaz:
http://arxiv.org/abs/2212.01930
Publikováno v:
Engineering Science and Technology, an International Journal, Vol 57, Iss , Pp 101810- (2024)
In this paper, a kind of superconductor ceramics metastructure-photonic crystals (SCMPC) is proposed to investigate the absorption and transmission properties of electromagnetic waves (EW) by combining a metastructure with multiple degrees of freedom
Externí odkaz:
https://doaj.org/article/84978b241f2d48dab013fd76cd77af6c
Autor:
Li, Bao-Fei, Singh, Parampreet
The dressed metric and the hybrid approach to perturbations are the two main approaches to capture the effects of quantum geometry in the primordial power spectrum in loop quantum cosmology. Both consider Fock quantized perturbations over a loop quan
Externí odkaz:
http://arxiv.org/abs/2206.12434
Autor:
Li, Bao-Fei, Singh, Parampreet
We explore the relationship between the effective dynamics in standard loop quantum cosmology (LQC) based on holonomies and triads obtained from gauge-fixing fluxes, and a modification of LQC based on holonomies and gauge-covariant fluxes (referred t
Externí odkaz:
http://arxiv.org/abs/2204.07589