what is quantum field?
Answers
ϙᴜᴀɴᴛᴜᴍ ғɪᴇʟᴅ ᴛʜᴇᴏʀʏ (ϙғᴛ) ɪs ᴛʜᴇ ᴍᴀᴛʜᴇᴍᴀᴛɪᴄᴀʟ ᴀɴᴅ ᴄᴏɴᴄᴇᴘᴛᴜᴀʟ ғʀᴀᴍᴇᴡᴏʀᴋ ғᴏʀ ᴄᴏɴᴛᴇᴍᴘᴏʀᴀʀʏ ᴇʟᴇᴍᴇɴᴛᴀʀʏ ᴘᴀʀᴛɪᴄʟᴇ ᴘʜʏsɪᴄs. ɪɴ ᴀ ʀᴀᴛʜᴇʀ ɪɴғᴏʀᴍᴀʟ sᴇɴsᴇ ϙғᴛ ɪs ᴛʜᴇ ᴇxᴛᴇɴsɪᴏɴ ᴏғ ϙᴜᴀɴᴛᴜᴍ ᴍᴇᴄʜᴀɴɪᴄs (ϙᴍ), ᴅᴇᴀʟɪɴɢ ᴡɪᴛʜ ᴘᴀʀᴛɪᴄʟᴇs, ᴏᴠᴇʀ ᴛᴏ ғɪᴇʟᴅs, ɪ.ᴇ. sʏsᴛᴇᴍs ᴡɪᴛʜ ᴀɴ ɪɴғɪɴɪᴛᴇ ɴᴜᴍʙᴇʀ ᴏғ ᴅᴇɢʀᴇᴇs ᴏғ ғʀᴇᴇᴅᴏᴍ.
Answer:
Quantum fields are matter. ... The simplest “practical” quantum field theory is quantum electromagnetism. In it, two fields exist: the electromagnetic field and the “electron field”. These two fields continuously interact with each other, energy and momentum are transferred, and excitations are created or destroyed.they generally/universally believed to be real and the most fundamental aspect of our universe or just a mathematical construct? I've read that there are 24 fundamental quantum fields: 12 fields for fermions and 12 for bosons.
Quantum fields are the quantum theoretical generalizations of classical fields. The two archetypal classical fields are Maxwell’s electromagnetic field and Einstein’s metric field of gravitation. One way to think about the process of quantization is that we first reformulate the (still classical) field equations in terms of mathematical operators replacing some numerical quantities (this part is pure algebra/calculus, no new physics is introduced yet); but then, we “solve” the resulting operator-valued equations, including solutions that do not appear in the classical theory, and make the assertion (validated by observation) that these new, “nonsensical” (in an intuitive, not in a mathematical sense) solutions accurately describe Nature, including all the observed quantum behavior that contradict the classical theory
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