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Decomposition of fluid motion into center-of-mass motion in the classical sense and non-classical spin motion.
| Kinematics | Hydrodynamics | Quantum mechanics | |
|---|---|---|---|
| Center-of-mass motion | u |
|
(kinetic energy) |
| Spin or Zitterbewegung | V |
|
(Bohm Potential) |
Wave function 
. Linear momentum and spin vector can be expressed accordingly with Pauli matrices 
, 
, 
.
