Lecture notes for PHYS 611 Quantum Field Theory I (Fall 2020) at the University of Tennessee, Knoxville. These are manually converted from the scanned handwritten version into LaTeX.

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List of contributors:

• @tonymezz Professor Anthony Mezzacappa
• @wyphan Wileam Phan
• Shikha Bangar (via Overleaf)
• Anjali Rathore (via Overleaf)