Question

what is quantum theory​

Answer 1

Quantum mechanics is a fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles. It is the foundation of all quantum physics including quantum chemistry, quantum field theory, quantum technology, and quantum information science.

Answer 2

ᴀ ᴛʜᴇᴏʀʏ ᴏғ ᴍᴀᴛᴛᴇʀ ᴀɴᴅ ᴇɴᴇʀɢʏ ʙᴀsᴇᴅ ᴏɴ ᴛʜᴇ ᴄᴏɴᴄᴇᴘᴛ ᴏғ ϙᴜᴀɴᴛᴀ, ᴇsᴘᴇᴄɪᴀʟʟʏ ϙᴜᴀɴᴛᴜᴍ ᴍᴇᴄʜᴀɴɪᴄs.

Hope its Help❤

Gm:))