The discussion revolves around the nature and origin of fundamental fields in physics, such as electromagnetic and Higgs fields, and their influence on matter. Participants explore theoretical concepts, interactions between fields, and the implications of these ideas in the context of quantum field theory and cosmology.
Participants express a variety of views on the nature of fields and particles, with no consensus reached on their origins or the implications of these concepts. Multiple competing perspectives remain throughout the discussion.
Participants highlight limitations in understanding the mathematical foundations of quantum field theory and the dependence on definitions of fields and particles. The discussion also reflects unresolved questions about the nature of vacuum fluctuations and their implications for particle production.
how do these fields (em, higgs ect.) influence matter?
We observe “ticks in detectors” not [necessarily] as 'particles', not as 'fields'. Such ticks are caused by some property of the object observed, such as charge, momentum or position. Are these a property of a field or of a particle? The ticks do not answer these question; An answer depends on the physical theory you are using to interpret the ticks.
Carlo Rovelli: “…we observe that if the mathematical definition of a particle appears somewhat problematic, its operational definition is clear: particles are the objects revealed by detectors, tracks in bubble chambers, or discharges of a photomultiplier…”
A particle is in some sense the smallest volume/unit in which the field or action of interest can operate….Most discussions regarding particles are contaminated with classical ideas of particles and how to rescue these ideas on the quantum level. Unfortunately this is hopeless.
B). A particle detector measures a local observable field quantity (for instance the energy of the field, or of a field component, in some region). This observable quantity is represented by an operator that in general has discrete spectrum. The particles observed by the detector are the quanta of this local operator.
Everything around us came from the big bang or it's remnants.where did they come from and when?
. In the quantum field theory view, "real particles" are viewed as being detectable excitations of underlying quantum fields. As such, virtual particles are also excitations of the underlying fields, but are detectable only as forces but not particles. They are "temporary" in the sense that they appear in calculations, but are not detected as single particles.