supported by the Collaborative Innovation Project of University,Anhui Province(Grant No.GXXT-2022-088)。
In this paper,we propose a new non-Gaussian quantum state,termed the photon-modulated displaced thermal state(DTS).Using the operator ordering method,we obtain the normal ordering product of its density operator and t...
Supported by the National Nature Science Foundation of China(12475075,12075249,11690022)and the Key Research Program of the Chinese Academy of Sciences(XDPB15)。
We investigate the second order energy density perturbation induced by small-scale Gaussian and local-type non-Gaussian primordial curvature perturbations.The relative abundance of primordial black holes(PBHs)is calcu...
Project supported by the Natural Science Foundation of Hunan Province of China(Grant No.2021JJ30535)。
The non-Gaussianity of quantum states incarnates an important resource for improving the performance of continuous-variable quantum information protocols.We propose a novel criterion of non-Gaussianity for single-mode...
the Natural Science Foundation of Hunan Province of China (Grant No. 2021JJ30535);the Research Foundation for Young Teachers from the Education Department of Hunan Province of China (Grant No. 20B460)。
Non-Gaussianity of quantum states is a very important source for quantum information technology and can be quantified by using the known squared Hilbert–Schmidt distance recently introduced by Genoni et al.(Phys. Rev...
Supported by the National Key Research and Development Program of China(Nos.2016YFC1402004,2016YFC1401805,2017YFC1404201)。
The occurrence of rogue waves is closely related to the non-Gaussianity of sea states,and this non-Gaussianity can be estimated using corresponding two-dimensional wave spectra.This paper presents an approach to non-G...
Project supported by the Natural Science Foundation of Hunan Province, China (Grant No. 2021JJ30535);the Science and Technology Innovation Foundation for College Students in Hunan Province of China (Grant No. 2020RC1013);the Research Foundation for Young Teachers from the Education Department of Hunan Province of China (Grant No. 20B460)。
We propose three alternative measures for non-Gaussianity of quantum states: sine distance, Bures angle, and Bures distance, which are based on quantum fidelity introduced by Wang [Phys. Lett. A 373 58(2008)]. Using t...
LH is funded by Hunan Natural Science Foundation(2020JJ5452);Hunan Provincial Department of Education(19B464);WL is funded by NSFC(1175012)。
In this paper,we propose a homogeneous curvaton mechanism that operates during the preheating process and in which the effective mass is running(i.e.,its potential consists of a coupling term and an exponential term w...
the support by the National Natural Science Foundation of China(Nos.51709247 and 51490675);the National Key R&D Program of China(No.2016YFE0200100)
The statistical and distribution characteristics of the responses of a floater and its mooring lines are essential in designing floating/mooring systems.In general,the dynamic responses of offshore structures obey a G...
Partly supported by the Chinese National Youth Thou-sand Talents Program(71000-41180003)
We investigate primordial perturbations and non-gaussianities in the Ho?ava-Lifshitz theory of gravitation.In the UV limit, the scalar perturbation in the Ho?ava theory is naturally scale-invariant, ignoring the detai...
Project supported by the Natural Science Foundation of Hunan Province,China(Grant No.2017JJ2214);the Key Project Foundation of the Education Department of Hunan Province,China(Grant No.14A114
We provide a measure to characterize the non-Gaussianity of phase-space function of bosonic quantum states based on the cumulant theory. We study the non-Gaussianity dynamics of two-mode squeezed number states by anal...