I (think I) understand the ∇(E²) intuitively (e.g optical tweezers where a trapped dipole wants to minimise its energy), and the Poynting one (light sail), but the (E•∇)E (or ∇x∇x whence it appeared) eludes me.
baptiste on Nostr: nprofile1q…ufa4k Incidentally, do you think this might provide an intuitive ...
nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqknzsux7p6lzwzdedp3m8c3c92z0swzc0xyy5glvse58txj5e9ztqaufa4k (nprofile…fa4k) Incidentally, do you think this might provide an intuitive interpretation/example of the less-intuitive terms appearing in the Maxwell stress tensor? A colleague of mine once alluded to this magnetic field lines-as-rubber-bands intuition, but didn't elaborate further.
I (think I) understand the ∇(E²) intuitively (e.g optical tweezers where a trapped dipole wants to minimise its energy), and the Poynting one (light sail), but the (E•∇)E (or ∇x∇x whence it appeared) eludes me.
I (think I) understand the ∇(E²) intuitively (e.g optical tweezers where a trapped dipole wants to minimise its energy), and the Poynting one (light sail), but the (E•∇)E (or ∇x∇x whence it appeared) eludes me.