A new class of particle in 2+1 dimensions
In two spatial dimensions, spin characterizes how particle states re-phase under changes of frame that leave their momentum and energy invariant. Massless particles can in principle have non-trivial spin in this sense, but all existing field theories only describe the trivial case. This letter prese...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2015-04-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269315001410 |
| _version_ | 1818134093363150848 |
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| author | Philip Schuster Natalia Toro |
| author_facet | Philip Schuster Natalia Toro |
| author_sort | Philip Schuster |
| collection | DOAJ |
| description | In two spatial dimensions, spin characterizes how particle states re-phase under changes of frame that leave their momentum and energy invariant. Massless particles can in principle have non-trivial spin in this sense, but all existing field theories only describe the trivial case. This letter presents a field theory for a massless particle with non-trivial physical spin. These particles are the (2+1)-dimensional analogues of “continuous-spin” particles in 3+1 dimensions, but here they have only two real degrees of freedom, related by parity. They can be understood as massless generalizations of anyons, but are simpler in key respects. |
| first_indexed | 2024-12-11T09:03:08Z |
| format | Article |
| id | doaj.art-6a5e4ea63023453f8dcca3b85951414f |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-11T09:03:08Z |
| publishDate | 2015-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-6a5e4ea63023453f8dcca3b85951414f2022-12-22T01:13:42ZengElsevierPhysics Letters B0370-26932015-04-01743224227A new class of particle in 2+1 dimensionsPhilip Schuster0Natalia Toro1Corresponding author.; Perimeter Institute for Theoretical Physics, Ontario, N2L 2Y5, CanadaPerimeter Institute for Theoretical Physics, Ontario, N2L 2Y5, CanadaIn two spatial dimensions, spin characterizes how particle states re-phase under changes of frame that leave their momentum and energy invariant. Massless particles can in principle have non-trivial spin in this sense, but all existing field theories only describe the trivial case. This letter presents a field theory for a massless particle with non-trivial physical spin. These particles are the (2+1)-dimensional analogues of “continuous-spin” particles in 3+1 dimensions, but here they have only two real degrees of freedom, related by parity. They can be understood as massless generalizations of anyons, but are simpler in key respects.http://www.sciencedirect.com/science/article/pii/S0370269315001410 |
| spellingShingle | Philip Schuster Natalia Toro A new class of particle in 2+1 dimensions Physics Letters B |
| title | A new class of particle in 2+1 dimensions |
| title_full | A new class of particle in 2+1 dimensions |
| title_fullStr | A new class of particle in 2+1 dimensions |
| title_full_unstemmed | A new class of particle in 2+1 dimensions |
| title_short | A new class of particle in 2+1 dimensions |
| title_sort | new class of particle in 2 1 dimensions |
| url | http://www.sciencedirect.com/science/article/pii/S0370269315001410 |
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