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in subjects: "Landau Liquid Helium Theory"

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Study of Local Reconnection Physics in a Laboratory Plasma

A short review of physics results obtained in the Magnetic Reconnection Experiment (MRX) is given with an emphasis on the local features of magnetic reconnection in a controlled environment. Stable two-dimensional current sheets are formed and sustained by induction using two internal coils. The observed reconnection rates are found to be quantitatively consistent with a generalized Sweet-Parker model which incorporates compressibility, unbalanced upstream-downstream pressure, and the effective… more

Date: June 11, 2001

Creator: Ji, Hantao; Carter, Troy; Hsu, Scott & Yamada, Masaaki

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

`HERON` as a Dark Matter Detector?

``{bold HERON}``, which is the acronym for `` {bold He}lium: {bold Ro}ton detection of {bold N}eutrinos``, is a project whose principal goal is a next generation detector of solar neutrinos from the p-p and {sup 7}Be branches. It will utilize superfluid helium as the target material and employ event energy transport out of the target by phonon and roton processes unique to helium. Many of the challenges presented for dark matter detection are very similar to those for low energy solar neutrinos… more

Date: October 1, 1996

Creator: Adams, J. S.; Bandler, S. R.; Brouer, S. M.; Enss, C.; Lanou, R. E.; Maris, H. J. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Many body theory program

This is the final report of a two-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The authors have obtained a description of symmetry of the order parameter and pairing state in high-Tc superconductors. They developed a theory of ferromagnetic instability of Fermi-liquid. They have conducted an experimental investigation of the intermetallic compounds and Zintl-type compound. They investigated the properties of Cu-0 ladders. They h… more

Date: December 1, 1998

Creator: Balatsky, A. V.; Scalapino, D.; Wilkins, J.; Pines, D.; Bedell, K.; Schrieffer, J. R. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Lectures of Fermi liquid theory

The Fermi liquid theory was first introduced by Landau in 1956 to provide a theoretical basis for the properties of strongly correlated Fermi systems. This theory has proven to be crucial for our understanding of a broad range of materials. These include liquid {sup 3}He, {sup 3}He-{sup 4}He mixtures, simple metals, heavy-fermions, and nuclear matter to name a few. In the high temperature superconductors questions have been raised regarding the applicability of Fermi liquid theory to the normal… more

Date: July 1, 1993

Creator: Bedell, K. S.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Lectures of Fermi liquid theory

The Fermi liquid theory was first introduced by Landau in 1956 to provide a theoretical basis for the properties of strongly correlated Fermi systems. This theory has proven to be crucial for our understanding of a broad range of materials. These include liquid [sup 3]He, [sup 3]He-[sup 4]He mixtures, simple metals, heavy-fermions, and nuclear matter to name a few. In the high temperature superconductors questions have been raised regarding the applicability of Fermi liquid theory to the normal… more

Date: January 1, 1993

Creator: Bedell, K.S.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

An Obliquely Propagating Electromagnetic Drift Instability in the Lower Hybrid Frequency Range

By employing a local two-fluid theory, we investigate an obliquely propagating electromagnetic instability in the lower hybrid frequency range driven by cross-field current or relative drifts between electrons and ions. The theory self-consistently takes into account local cross-field current and accompanying pressure gradients. It is found that the instability is caused by reactive coupling between the backward propagating whistler (fast) waves in the moving electron frame, and the forward pro… more

Date: June 10, 2005

Creator: Ji, Hantao; Kulsrud, Russell; Fox, William & Yamada, Masaaki

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Momentum distributions in liquid helium

The appearance of the superfluid phase, with its unique macroscopic properties, and the success of the 'two-fluid' model in describing the transport properties are intimately linked to the Bose statistics obeyed by /sup 4/He atoms. The most direct signature of the Bose condensate is in the single particle momentum distribution n(p). In the normal liquid the momentum distribution has a broad Gaussian shape, as predicted for classical systems, with a width determined by the quantum zero point mot… more

Date: January 1, 1988

Creator: Sokol, P. E.; Sosnick, T. R. & Snow, W. M.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Critical study of type II supernovae: equations of state and general relativity

The relevance of relativistic gravitation and of the properties of nuclear matter at high density to supernova explosions is examined in detail. The existing empirical knowledge on the nuclear equation of state at densities greater than saturation, extracted from analysis of heavy ion collisions and from the breathing mode in heavy nuclei, is also considered. Particulars of the prompt explosions recently obtained theoretically by Baron, Cooperstein, and Kahana are presented. 40 refs., 9 figs., … more

Date: January 1, 1986

Creator: Kahana, S.

Item Type: Report

Partner: UNT Libraries Government Documents Department