Quantum quench in the sine-Gordon model
We consider the time evolution in the repulsive sine-Gordon quantum field theory after the system is prepared in a particular class of initial states. We focus on the time dependence of the one-point function of the semi-local operator exp(iβΦ(x)/2). By using two different methods based on form-fact...
| 主要な著者: | , , |
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| フォーマット: | Journal article |
| 言語: | English |
| 出版事項: |
Institute of Physics Publishing
2014
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| _version_ | 1826287694669414400 |
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| author | Bertini, B Schuricht, D Essler, F |
| author_facet | Bertini, B Schuricht, D Essler, F |
| author_sort | Bertini, B |
| collection | OXFORD |
| description | We consider the time evolution in the repulsive sine-Gordon quantum field theory after the system is prepared in a particular class of initial states. We focus on the time dependence of the one-point function of the semi-local operator exp(iβΦ(x)/2). By using two different methods based on form-factor expansions, we show that this expectation value decays to zero exponentially and we determine the decay rate by analytical means. Our methods generalize to other correlation functions and integrable models. |
| first_indexed | 2024-03-07T02:02:30Z |
| format | Journal article |
| id | oxford-uuid:9dd5f574-3e96-45fa-9901-21cb15fbf420 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:02:30Z |
| publishDate | 2014 |
| publisher | Institute of Physics Publishing |
| record_format | dspace |
| spelling | oxford-uuid:9dd5f574-3e96-45fa-9901-21cb15fbf4202022-03-27T00:45:58ZQuantum quench in the sine-Gordon modelJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9dd5f574-3e96-45fa-9901-21cb15fbf420EnglishSymplectic Elements at OxfordInstitute of Physics Publishing2014Bertini, BSchuricht, DEssler, FWe consider the time evolution in the repulsive sine-Gordon quantum field theory after the system is prepared in a particular class of initial states. We focus on the time dependence of the one-point function of the semi-local operator exp(iβΦ(x)/2). By using two different methods based on form-factor expansions, we show that this expectation value decays to zero exponentially and we determine the decay rate by analytical means. Our methods generalize to other correlation functions and integrable models. |
| spellingShingle | Bertini, B Schuricht, D Essler, F Quantum quench in the sine-Gordon model |
| title | Quantum quench in the sine-Gordon model |
| title_full | Quantum quench in the sine-Gordon model |
| title_fullStr | Quantum quench in the sine-Gordon model |
| title_full_unstemmed | Quantum quench in the sine-Gordon model |
| title_short | Quantum quench in the sine-Gordon model |
| title_sort | quantum quench in the sine gordon model |
| work_keys_str_mv | AT bertinib quantumquenchinthesinegordonmodel AT schurichtd quantumquenchinthesinegordonmodel AT esslerf quantumquenchinthesinegordonmodel |