Second viscosity of A1-phase of superfluid 3He at low temperatures

2010 ◽  
Vol 405 (4) ◽  
pp. 1050-1054 ◽  
Author(s):  
R. Afzali ◽  
F. Rahmati
Keyword(s):  
Low Temperatures ◽  
Superfluid 3He

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 Dynamic Texture of Superfluid 3He-B at Very Low Temperatures and in High Magnetic Fields

2005 ◽  
Vol 138 (3-4) ◽  
pp. 583-588 ◽  
Author(s):  
D. I. Bradley ◽  
S. N. Fisher ◽  
A. M. Gu�nault ◽  
R. P. Haley ◽  
H. Martin ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Low Temperatures ◽  
Superfluid 3He ◽  
High Magnetic Fields ◽  
Dynamic Texture

Grid Turbulence in Superfluid 3He-B at Low Temperatures

2007 ◽  
Vol 150 (3-4) ◽  
pp. 364-372 ◽  
Author(s):  
D. I. Bradley ◽  
S. N. Fisher ◽  
A. M. Guénault ◽  
R. P. Haley ◽  
M. Holmes ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Superfluid 3He ◽  
Grid Turbulence

Superfluid 3He at very low temperatures: a very unusual excitation gas

1994 ◽  
Vol 197 (1-4) ◽  
pp. 390-396 ◽  
Author(s):  
G.R. Pickett ◽  
M.P. Enrico ◽  
S.N. Fisher ◽  
A.M. Guénault ◽  
K. Torizuka
Keyword(s):  
Low Temperatures ◽  
Superfluid 3He

Coherent Spin Precession in Superfluid 3He-B Excited in a Field Minimum at Low Temperatures

2005 ◽  
Vol 138 (3-4) ◽  
pp. 777-782 ◽  
Author(s):  
S. N. Fisher ◽  
A. M. Gu�nault ◽  
C. J. Matthews ◽  
P. Skyba ◽  
G. R. Pickett ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Superfluid 3He ◽  
Spin Precession ◽  
Coherent Spin Precession ◽  
Coherent Spin

Vortex Formation and Annihilation in Rotating Superfluid 3He-B at Low Temperatures

2010 ◽  
Vol 161 (5-6) ◽  
pp. 474-508 ◽  
Author(s):  
V. B. Eltsov ◽  
R. de Graaf ◽  
P. J. Heikkinen ◽  
J. J. Hosio ◽  
R. Hänninen ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Vortex Formation ◽  
Superfluid 3He

scholarly journals Design of a system for controlling a levitating sphere in superfluid 3He at extremely low temperatures

2021 ◽  
Author(s):  
Manuel Arrayás ◽  
José L. Trueba ◽  
Carlos Uriarte ◽  
Dmitry E. Zmeev
Keyword(s):  
Low Temperatures ◽  
Theoretical Study ◽  
Superfluid 3He ◽  
Edge States ◽  
Promising Direction ◽  
Topological Superfluid ◽  
Device Stability ◽  
Superconducting Sphere ◽  
Experimental Challenge ◽  
Mechanical Probe

Abstract We present a new mechanical probe to study the properties of superfluid 3 He at microkelvin temperatures down to 100µK. The setup consists of a set of coils for levitating a superconducting sphere and controlling its motion in a wide variety of regimes. In particular, the realisation of motion of a levitating body at a uniform velocity presents both an experimental challenge and a promising direction into the study of the edge states in topological superfluid 3 He-B. We include the theoretical study of the device stability and simulations to illustrate the capabilities of the control system.

The Damping of a Quartz Tuning Fork in Superfluid 3He-B at Low Temperatures

2009 ◽  
Vol 157 (5-6) ◽  
pp. 476-501 ◽  
Author(s):  
D. I. Bradley ◽  
P. Crookston ◽  
S. N. Fisher ◽  
A. Ganshin ◽  
A. M. Guénault ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Tuning Fork ◽  
Quartz Tuning Fork ◽  
Superfluid 3He
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