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en.wikipedia.org/wiki/Quantum_field_theory

In theoretical physics, quantum field theory (QFT) is the theoretical framework for constructing ... Since photons have rest mass zero, and correspondingly travel in the ... a non-relativistic theory such as ordinary QM cannot give even an approximate ... The basic idea was that in QFT the electromagnetic field should be ...

www.answers.com/Q/Since_magnetic_field_lines_are_just_constructs_the_field_cannot_contain_energy

Magnetic lines do not cross each other. it is natural phenomenon. Answer Magnetic 'lines of force' do not actually exist. They simply represent a 'model' which ...

www.wyzant.com/resources/lessons/science/physics/magnetism

Recall that fields are just constructs we use to understand these ideas: we can't see ... If a charge is moving it still has an electric field, it is just that the electric field is only ... How magnetic fields lines are generated from moving charge sources is ... magnetic fields are with moving neutral particles (since they have no charge, ...

www.researchgate.net/post/Is_the_electric_field_real_or_only_a_theory

Since in this concept, nothing is leaving the charged particle, there is nothing to intercept or ... The electric field has energy to be able to exerts a force on another charged object. ... Electrostatics is an approximate model of the electromagnetic reality. ... In a general dynamic case they cannot even be measured (only the ...

www.euro-fusion.org/faq/could-you-tell-me-how-the-magnetic-fields-contain-the-plasma-and-how-these-fields-are-set-up-and-powered

Could you tell me how the magnetic fields contain the plasma and how these fields are set up and powered? Find a Question. Current Question. Could you tell  ...

phys.org/news/2013-07-largest-magnetic-fields-universe.html

Jul 26, 2013 ... It has been speculated for a long time that enormous magnetic field ... Planck Institute for Gravitational Physics (Albert Einstein Institute/AEI) have ... Since the star is dynamically unstable, it eventually collapses to a ... explaining the huge amount of energy released by short gamma-ray bursts. .... cant & axe,

profmattstrassler.com/articles-and-posts/particle-physics-basics/mass-energy-matter-etc/matter-and-energy-a-false-dichotomy

Apr 12, 2012 ... The term Dark Energy confuses the issue, since it isn't (just) energy after all. ... All particles are ripples in fields and have energy; photons are not .... you can't have an elementary particle without a field, but you can have a ..... But no one has any practical reason to try to construct large amounts of anti-matter.

www.symmetrymagazine.org/article/april-2015/ten-things-you-might-not-know-about-antimatter

Apr 28, 2015 ... However, humans have produced only a minuscule amount of antimatter. ... Because they have no charge, these particles cannot be confined by electric fields. ... Earth's magnetic field can also act as a sort of antimatter trap. ... that will release their energy only after safely passing through healthy tissue.

adsabs.harvard.edu/full/1964NASSP..50..425P

If this mechanism is also included, it is possible to construct a steady flow ... It is apparent from the spacing between field lines that the magnetic energy is ... We may also note that, since the diffusion velocity due to finite conductivity decreases .... *We have tacitly assumed that the only dissipation mechanism present is due  ...

www.pbs.org/wgbh/nova/blogs/physics/2012/05/whats-the-matter-with-gravity

May 3, 2012 ... But Einstein's theory of gravity contains a flaw, or maybe just a ... fundamental forces: the electromagnetic, the weak, and the strong. ... which explains the three forces as fields created and carried by ... And mass, says Einstein's E = mc2, always implies energy. .... ENERGY CANNOT BE OUT ON ITS OWN