noun
time-ordered product
Technical term in quantum field theory; refers to the product of field operators arranged in chronological order.
時間順序積は場の量子論で重要な役割を果たす。
The time-ordered product plays an important role in quantum field theory.
Compound of 時間 (time), 順序 (order), and 積 (product), directly translating the English term 'time-ordered product'.