advanced_tools:cohomology
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advanced_tools:cohomology [2017/05/07 15:24] jakobadmin |
advanced_tools:cohomology [2017/05/07 15:24] jakobadmin [Why is it interesting?] |
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| - | In physics with a given gauge symmetry (redundancy) we are interested in what our actual non-redundant physical states are. These can be found with the help of a special kind of cohomology, called BRST cohomology. | + | In a theory with a given gauge symmetry (redundancy) we are interested in what our actual non-redundant physical states are. These can be found with the help of a special kind of cohomology, called BRST cohomology. |
| The BRST operator is used to identify physical states. These are to be contrasted with unphysical states that only appear as convenient computational tools. | The BRST operator is used to identify physical states. These are to be contrasted with unphysical states that only appear as convenient computational tools. | ||
advanced_tools/cohomology.txt ยท Last modified: 2017/05/07 15:25 by jakobadmin
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