Optical pulling allows to pull in optical tweezers, negative radiation pressure to pull solitons - some hypothetical application: 2WQC (two-way...
Turns out there is considered "negative radiation pressure" - predicted for solitons, searched e.g. for mechanical waves on graphene:...
Here is another perspective on the ring laser setting using formulas from https://en.wikipedia.org/wiki/Stimulated_emission There are two...
CPT symmetry Wikipedia article says "The CPT theorem says that CPT symmetry holds for all physical phenomena". However, while e.g. laser cooling...
Regarding what is measuring what, I would say external magnetic field is measuring magnetic dipole moment - enforcing it align zeroing torque....
Indeed this is not perfect alignment, but often quite good - e.g. in Stern-Gerlach, measurnment, ferromagnets. I was pointed recent very nice...
For atom the dominating magnetic dipole moment can come e.g. from angular orbital momentum - in which case shouldn't Larmor precession be of angular...
Already for electrons they make Larmor precession ... spin echo acrobatics in EM fields:...
Stern-Gerlach experiment is often seen as idealization of measurement. Using strong magnetic field, it makes magnetic dipoles (of e.g. atoms) align...
Just prepared: https://arxiv.org/pdf/2112.12557 While textbook explanation of p-n junction ( https://en.wikipedia.org/wiki/P–n_junction ) looks quite...
Some updates - interactive demonstration to play with such topological charges of liquid crystal biaxial nematic - of 3 types resembling 3 leptons,...
Maybe Coriolis force - characteristic for rotating objects: https://en.wikipedia.org/wiki/Coriolis_force Its hydrodynamical analogue is Lorentz...
SR time dilation is there in any Lorentz-invariant model e.g. sine-Gordon ( https://en.wikipedia.org/wiki/Sine-Gordon_equation ), which can be...
(Kolmogorov) probability axioms can be disproven in physics. ( https://en.wikipedia.org/wiki/Probability_axioms ) E.g. they allow to derive...
The main point is repairing electromagnetism - add missing charge quantization, and regularize charges to finite energy. However, adding missing...
Thanks for pointing https://arxiv.org/pdf/1806.01121.pdf Spin is not only about spinning, but also for quantum rotation operator: "rotating spin s...
Prepared slides with lots of materials about this resemblance between liquid crystal topological defects and particle physics :...
Maybe Gsponer has meant that spin of e.g. electron is not exactly spinning, what I agree. Topological charge is kind of "structural spinning" - what...
Thanks, regarding spin, it is related with magnetic dipole moment of particle. There are known fluxons (...
Thanks for pointing https://en.wikipedia.org/wiki/Koide_formula - very interesting, suggesting a result of some e.g. geometric optimization, I will...
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