Quantum fields are a grammar, not necessarily a reality

In theoretical physics, quantum field theory (QFT) is a theoretical framework for constructing quantum mechanical models of subatomic particles in particle physics and quasiparticles in condensed matter physics. A QFT treats particles as excited states of an underlying physical field, so these are called field quanta.

This is another error in the physics stack exchange. A quantum field is no more real than a electromagnetic field or a gravitational field. It is simply a more accurate model than we had used before.  The much better model, the model that explains much more is simply that free space is band limited.An even better model is that free space is a three sphere packer.  An even better model is that free space is a self packing set of three sphere sizes, and the optimum number of bubbles they pack in a sphere is about 10e22.

There is a simple rule. The best model of free space is one that a grammar school kid can understand. Free space is not that smart folks.