A Grassmann field takes values in a Grassmann algebra, so its components anticommute. A closed loop of Grassmann propagators acquires a minus sign in perturbation theory.
Ancestors (6)
Incoming links (24)
- Bosonic versus fermionic coherent-state trace
- Closed fermion loop sign
- Discrete symmetries of a two-component Dirac field in three dimensions
- Euclidean action
- Ghost field
- Grassmann field
- Past exam of the advanced quantum field theory for particle physics course of the University of Oxford / 2020 / 3 / b / ii / Solution
- Past exam of the advanced quantum field theory for particle physics course of the University of Oxford / 2024 / 1 / a / Solution
- Past exam of the advanced quantum field theory for particle physics course of the University of Oxford / 2024 / 3 / a / Solution
- Past exam of the advanced quantum field theory for particle physics course of the University of Oxford / 2024 / 3 / e / Solution
- Past exam of the advanced quantum field theory for particle physics course of the University of Oxford / 2025 / 3 / a / Solution
- Past exam of the mathematics course of the University of Cambridge / 2003 / iii / Paper 48 / 4 / b / Solution
- Past exam of the mathematics course of the University of Cambridge / 2014 / iii / Paper 44 / 4 / b / Solution
- Past exam of the mathematics course of the University of Cambridge / 2014 / iii / Paper 81 / 4 / a / Solution
- Past exam of the mathematics course of the University of Cambridge / 2015 / iii / Paper 81 / 4 / d / Solution
- Past exam of the mathematics course of the University of Cambridge / 2016 / iii / Paper 301 / 1 / Solution
- Past exam of the mathematics course of the University of Cambridge / 2017 / iii / Paper 304 / 2 / i / Solution
- Past exam of the mathematics course of the University of Cambridge / 2017 / iii / Paper 304 / 4 / ii / Solution
- Past exam of the mathematics course of the University of Cambridge / 2018 / iii / Paper 304 / 4 / Solution
- Past exam of the mathematics course of the University of Cambridge / 2019 / iii / Paper 304 / 4 / d / ii / Solution
- Past exam of the quantum Condensed Matter Field Theory course of the University of Cambridge / 2013 / Paper 1 / 2 / b / Solution
- Past exam of the quantum Condensed Matter Field Theory course of the University of Cambridge / 2013 / Paper 1 / 3 / b / Solution
- Past exam of the quantum Condensed Matter Field Theory course of the University of Cambridge / 2015 / Paper 1 / 2 / b / Solution
- Past exam of the quantum field theory course of the University of Oxford / 2023 / 3 / e / Solution
Synonyms (1)
Discussion (0) New discussion
There are no discussions about this article yet.
Articles by others on the same topic (0)
There are currently no matching articles.