Decay of quantised vorticity by sound emission

被引:41
作者
Barenghi, CF [1 ]
Parker, NG
Proukakis, NP
Adams, CS
机构
[1] Newcastle Univ, Sch Math, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
[2] Univ Durham, Dept Phys, Durham DH1 3LE, England
关键词
D O I
10.1007/s10909-005-2272-5
中图分类号
O59 [应用物理学];
学科分类号
摘要
It is thought that in a quantum fluid sound generation is the sink of turbulent kinetic energy in the absence of any other dissipation mechanism near absolute zero. We show that a suitably trapped Bose-Einstein condensate provides a model system to study the sound emitted by accelerating vortices in a controlled way.
引用
收藏
页码:629 / 634
页数:6
相关论文
共 17 条
[1]   Dynamical vortices in superfluid films [J].
Arovas, DP ;
Freire, JA .
PHYSICAL REVIEW B, 1997, 55 (02) :1068-1080
[2]   Decay of quantized vorticity in superfluid 4He at mK temperatures [J].
Davis, SI ;
Hendry, PC ;
McClintock, PVE .
PHYSICA B, 2000, 280 (1-4) :43-44
[3]  
Feynman R. P., 1972, STAT MECH
[4]   Kelvin waves cascade in superfluid turbulence [J].
Kivotides, D ;
Vassilicos, JC ;
Samuels, DC ;
Barenghi, CF .
PHYSICAL REVIEW LETTERS, 2001, 86 (14) :3080-3083
[5]   Kelvin-wave cascade and decay of superfluid turbulence [J].
Kozik, E ;
Svistunov, B .
PHYSICAL REVIEW LETTERS, 2004, 92 (03) :4
[6]   Decay of superfluid turbulence via Kelvin-wave radiation [J].
Leadbeater, M ;
Samuels, DC ;
Barenghi, CF ;
Adams, CS .
PHYSICAL REVIEW A, 2003, 67 (01) :4
[7]   Sound emission due to superfluid vortex reconnections [J].
Leadbeater, M ;
Winiecki, T ;
Samuels, DC ;
Barenghi, CF ;
Adams, CS .
PHYSICAL REVIEW LETTERS, 2001, 86 (08) :1410-1413
[8]   Hydrodynamic approach to vortex lifetimes in trapped Bose condensates [J].
Lundh, E ;
Ao, P .
PHYSICAL REVIEW A, 2000, 61 (06) :7
[9]   Kolmogorov turbulence in low-temperature superflows [J].
Nore, C ;
Abid, M ;
Brachet, ME .
PHYSICAL REVIEW LETTERS, 1997, 78 (20) :3896-3899
[10]   Controlled vortex-sound interactions in atomic Bose-Einstein condensates [J].
Parker, NG ;
Proukakis, NP ;
Barenghi, CF ;
Adams, CS .
PHYSICAL REVIEW LETTERS, 2004, 92 (16) :160403-1