Theory of Orbital Kondo Effect with Assisted Hopping in Strongly Correlated Electron Systems: Parquet Equations, Superconductivity and Mass Enhancement

Orbital Kondo effect is treated in a model, where additional to the conduction band there are localized orbitals close to the Fermi energy. If the hopping between the conduction band and the localized heavy orbitals depends on the occupation of the atomic orbitals in the conduction band then orbital Kondo correlation occurs. The noncommutative nature of the coupling required for the Kondo effect is formally due to the form factors associated with the assisted hopping which in the momentum representation depends on the momenta of the conduction electrons involved. The leading logarithmic vertex corrections are due to the local Coulomb interaction between the electrons on the heavy orbital and in the conduction band. The renormalized vertex functions are obtained as a solution of a closed set of differential equations and they show power behavior. The amplitude of large renormalization is determined by an infrared cutoff due to finite energy and dispersion of the heavy particles. The enhanced assisted hopping rate results in mass enhancement and attractive interaction in the conduction band. The superconductivity transition temperature calculated is largest for intermediate mass enhancement, $m^*/m \approx 2-3$. For larger mass enhancement the small one particle weight ($Z$) in the Green's function reduces the transition temperature which may be characteristic for otherComment: 32 pages, RevTeX 3.0, figures on reques

Fate and Survivability of Fish Bacteriophage Inoculated in BALB/c Mice

Understanding of bacteriophage kinetics in mammals or higher organisms is needed, as this determines the potential phage activity in antibacterial treatment. We demonstrated the fate and survivability of fish phage particles in different organs and fluids inoculated into mice. Phage (PPpW-4) specific to Pseudomonas plecoglossicida was intraperitoneally injected to mice with a dose of 108.1 PFU/ml/mouse. Phage titers (103.0~105.2 PFU/g) were detected in blood and other organs within 10 min after injection except in the urine samples. Phage titers in blood (105.1~106.9 PFU/g) were 10~100 times higher than that of the other organs from 10 min until 24 h. It shows that phage was distributed quickly to the different organs by circulatory system via the blood. Phage titers in all organs showed the highest level in 1 h (104.2~106.9 PFU/g) and reduced rapidly until no phage was detected in 72 h. Although phage disappeared in blood within 72 h, phage can still survived in the spleen and kidney until 96 h. Spleen in particular, had an appreciable phage titer of 102.7 PFU/g. There were comparatively high phage titers (103.0~104.7 PFU/g) in urine from 1 h up to 24 h. It means that one possible mechanism of phage elimination is by urinary excretion.Y