Triviality of entanglement entropy in the Galilean vacuum
We study the entanglement entropy of the vacuum in non-relativistic local theories with Galilean or Schrödinger symmetry. We clear some confusion in the literature on the free Schrödinger case. We find that with only positive U(1) charge particles (states) and a unique zero U(1) charge state (the va...
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| Format: | Article |
| Language: | English |
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Elsevier
2018-05-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S037026931830176X |
| _version_ | 1818010941294379008 |
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| author | Itamar Hason |
| author_facet | Itamar Hason |
| author_sort | Itamar Hason |
| collection | DOAJ |
| description | We study the entanglement entropy of the vacuum in non-relativistic local theories with Galilean or Schrödinger symmetry. We clear some confusion in the literature on the free Schrödinger case. We find that with only positive U(1) charge particles (states) and a unique zero U(1) charge state (the vacuum) the entanglement entropy must vanish in that state. |
| first_indexed | 2024-04-14T06:01:06Z |
| format | Article |
| id | doaj.art-b0f0c05975a34ae78400542f4678f096 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-04-14T06:01:06Z |
| publishDate | 2018-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-b0f0c05975a34ae78400542f4678f0962022-12-22T02:08:45ZengElsevierPhysics Letters B0370-26932018-05-01780149151Triviality of entanglement entropy in the Galilean vacuumItamar Hason0Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, IsraelWe study the entanglement entropy of the vacuum in non-relativistic local theories with Galilean or Schrödinger symmetry. We clear some confusion in the literature on the free Schrödinger case. We find that with only positive U(1) charge particles (states) and a unique zero U(1) charge state (the vacuum) the entanglement entropy must vanish in that state.http://www.sciencedirect.com/science/article/pii/S037026931830176X |
| spellingShingle | Itamar Hason Triviality of entanglement entropy in the Galilean vacuum Physics Letters B |
| title | Triviality of entanglement entropy in the Galilean vacuum |
| title_full | Triviality of entanglement entropy in the Galilean vacuum |
| title_fullStr | Triviality of entanglement entropy in the Galilean vacuum |
| title_full_unstemmed | Triviality of entanglement entropy in the Galilean vacuum |
| title_short | Triviality of entanglement entropy in the Galilean vacuum |
| title_sort | triviality of entanglement entropy in the galilean vacuum |
| url | http://www.sciencedirect.com/science/article/pii/S037026931830176X |
| work_keys_str_mv | AT itamarhason trivialityofentanglemententropyinthegalileanvacuum |