3He melting pressure temperature scale below 25 mK

1995 ◽  
Vol 99 (1-2) ◽  
pp. 167-182 ◽  
Author(s):  
W. Ni ◽  
J. S. Xia ◽  
E. D. Adams ◽  
P. S. Haskins ◽  
J. E. McKisson
Keyword(s):  
Temperature Scale ◽  
Melting Pressure

scholarly journals A Superfluid Perspective on Neutron Star Dynamics

Universe ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. 17
Author(s):  
Nils Andersson
Keyword(s):  
Neutron Star ◽  
Degrees Of Freedom ◽  
Temperature Scale ◽  
Fluid System ◽  
Fluid Core ◽  
State Of Matter ◽  
Entrainment Effect ◽  
Neutron Component ◽  
The Impact

As mature neutron stars are cold (on the relevant temperature scale), one has to carefully consider the state of matter in their interior. The outer kilometre or so is expected to freeze to form an elastic crust of increasingly neutron-rich nuclei, coexisting with a superfluid neutron component, while the star’s fluid core contains a mixed superfluid/superconductor. The dynamics of the star depend heavily on the parameters associated with the different phases. The presence of superfluidity brings new degrees of freedom—in essence we are dealing with a complex multi-fluid system—and additional features: bulk rotation is supported by a dense array of quantised vortices, which introduce dissipation via mutual friction, and the motion of the superfluid is affected by the so-called entrainment effect. This brief survey provides an introduction to—along with a commentary on our current understanding of—these dynamical aspects, paying particular attention to the role of entrainment, and outlines the impact of superfluidity on neutron-star seismology.

The Temperature Scale, a Proposed Change in Definition

1940 ◽  
Vol 11 (6) ◽  
pp. 371-372
Author(s):  
F. G. Brickwedde
Keyword(s):  
Temperature Scale

A European ultralow temperature scale

2000 ◽  
Vol 284-288 ◽  
pp. 2004-2005 ◽  
Author(s):  
P Mohandas ◽  
D.I Head ◽  
R.L Rusby ◽  
G Schuster ◽  
A Hoffmann ◽  
...  
Keyword(s):  
Temperature Scale ◽  
Ultralow Temperature

SPIN DIFFUSION COEFFICIENT OF A1-PHASE OF SUPERFLUID 3He AT LOW TEMPERATURES

2009 ◽  
Vol 23 (12) ◽  
pp. 1603-1610 ◽  
Author(s):  
R. AFZALI ◽  
F. PASHAEE
Keyword(s):  
Diffusion Coefficient ◽  
Boltzmann Equation ◽  
Low Temperatures ◽  
Spin Diffusion ◽  
Superfluid 3He ◽  
Total Spin ◽  
Equation Approach ◽  
Fluid Component ◽  
Melting Pressure ◽  
Superfluid Component

The spin diffusion coefficient tensor of the A1-phase of superfluid 3 He at low temperatures and melting pressure is calculated using the Boltzmann equation approach and Pfitzner procedure. Then considering Bogoliubov-normal interaction, we show that the total spin diffusion is proportional to 1/T2, the spin diffusion coefficient of superfluid component [Formula: see text] is proportional to T-2, and the spin diffusion coefficient of super-fluid component [Formula: see text] is independent of temperature. Furthermore, it is seen that superfluid components play an important role in spin diffusion of the A1-phase.

The Temperature Scale and Mass Distribution of Hot DA White Dwarfs

1997 ◽  
Vol 488 (1) ◽  
pp. 375-396 ◽  
Author(s):  
David S. Finley ◽  
Detlev Koester ◽  
Gibor Basri
Keyword(s):  
Mass Distribution ◽  
White Dwarfs ◽  
Temperature Scale
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