101 citations
4 papers
Avoidance of Big Rip In Phantom Cosmology by Gravitational Back Reaction
Puxun Wu, Hongwei Yu
The effects of the gravitational back reaction of cosmological perturbations are investigated in a cosmological model where the universe is dominated by phantom energy. We assume a…
Vacuum fluctuations and Brownian motion of a charged test particle near a reflecting boundary
Hongwei Yu, L. H. Ford
We study the Brownian motion of a charged test particle coupled to electromagnetic vacuum fluctuations near a perfectly reflecting plane boundary. The presence of the boundary modi…
The Von Neumann Regular Radical and Jacobson Radical of Crossed Products
Shouchuan Zhang
We construct the -von Neumann regular radical for -module algebras and show that it is an -radical property. We obtain that the Jacobson radical of twisted graded algebra…
Phase-Dependent Spontaneous Spin Polarization and Bifurcation Delay in Coupled Two-Component Bose-Einstein Condensates
Chaohong Lee, Wenhua Hai, Lei Shi +1
The spontaneous spin polarization and bifurcation delay in two-component Bose-Einstein condensates coupled with laser or/and radio-frequency pulses are investigated. We find that t…