TY - JOUR
T1 - Core states and spectral flow in vortex dynamics
AU - Stone, Michael
N1 - Funding Information:
I would like to thank the organisers of the Conference for inviting me to speak. I would also like to thank Ping Ao, David Thouless, Carlos Wexler, Frank Gaitan, Xiaomei Zhu and Grisha Volovik for many valuable conversations on vortices and the Magnus force. The work described in the paper was funded by the National Science Foundation under grant number DMR98-17941.
PY - 2000/5/11
Y1 - 2000/5/11
N2 - I review the semi-classical picture of how states bound in the core of a vortex in an S-wave superconductor respond to relative motion between the vortex and the condensate. I show how the momentum absorbed as a result of the Magnus force acting on the core leads to a change in the distribution of occupied states ('spectral flow'). In the simplest relaxation time approximation this modified distribution gives rise to the Kopnin-Kravtsov force on the vortex.
AB - I review the semi-classical picture of how states bound in the core of a vortex in an S-wave superconductor respond to relative motion between the vortex and the condensate. I show how the momentum absorbed as a result of the Magnus force acting on the core leads to a change in the distribution of occupied states ('spectral flow'). In the simplest relaxation time approximation this modified distribution gives rise to the Kopnin-Kravtsov force on the vortex.
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U2 - 10.1016/S0921-4526(99)01509-4
DO - 10.1016/S0921-4526(99)01509-4
M3 - Conference article
AN - SCOPUS:0033876655
SN - 0921-4526
VL - 280
SP - 117
EP - 121
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - 1-4
T2 - 22nd International Conference on Low Temperature Physics (LT-22)
Y2 - 4 August 1999 through 11 August 1999
ER -