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Quantum Field Theory(QFT): Before First Lecture (English/Hindi)

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Disclaimer : This article is not for layman. This means that if you are about to start studying quantum field theory(QFT) at an academic level and you need a very brief and basic introduction to the subject, then you can read this article further. Individual not familiar with the undergraduate level physics and math have too less to gain from this article and even if you understand a few key words most of words will nothing more than gibberish.   =================== The fundamental question is that if quantum physics is the perfect tool for understanding the nature of sub-atomic particles and their world, and if General Relativity is extraordinary for events occurring at the cosmic level, then why is it a challenge to combine the two giants to form a singular fundamental theory of everything to understands the complicated interplay of forces of the universe from most fundamental level to celestial scale. The fundamental problem in creating a unified theory is how to combine it wit...