The Trail, 1965-04-30

https://soundideas.pugetsound.edu/thetrail_all/4037/thumbnail.jp

Fertilizer Facts

This publication provides information on plant nutrients and their effect on plant growth. Fertilizer terms and definitions, sources and forms of common commercial fertilizers, calculating fertilizer rates and cost, and nutrient loss are also explained

New evidence for zero-temperature relaxation in a spin-polarized Fermi liquid

Spin-echo experiments are reported for 3He-4He solutions under extremely high B/T conditions, B=14.75  T and T≥1.73  mK. The 3He concentration x3 was adjusted close to the value xc≈3.8% at which the spin-rotation parameter μM0 vanishes. In this way the transverse and longitudinal spin-diffusion coefficients D⊥,D∥ were measured while keeping |μM0|\u3c1. It is found that the temperature dependence of D⊥ deviates strongly from 1/T2, with anisotropy temperature Ta=4.26-0.44+0.18  mK. This value is close to the theoretical prediction for dilute solutions and suggests that spin current relaxation remains finite as the temperature tends to zero

The Trail, 1965-04-16

https://soundideas.pugetsound.edu/thetrail_all/4036/thumbnail.jp

The Trail, 1964-12-11

https://soundideas.pugetsound.edu/thetrail_all/1897/thumbnail.jp

Closed formula for the metric in the Hilbert space of a PT-symmetric model

We introduce a very simple, exactly solvable PT-symmetric non-Hermitian model with real spectrum, and derive a closed formula for the metric operator which relates the problem to a Hermitian one.Comment: LaTeX, 13 pages; to appear in Journal of Physics

The Trail, 1965-02-11

https://soundideas.pugetsound.edu/thetrail_all/1901/thumbnail.jp