Few trapped quantum dipoles: quantum versus classical structures
We analyze the ground state of a two-dimensional quantum system of a few strongly confined dipolar bosons. Dipoles arrange in different stable structures that depend on the tilting polarization angle and the anisotropy of the confining trap. To this end, we use the exact diffusion Monte Carlo method...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2018-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/aaa5f9 |
| _version_ | 1797750668781420544 |
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| author | J Sánchez-Baena F Mazzanti J Boronat |
| author_facet | J Sánchez-Baena F Mazzanti J Boronat |
| author_sort | J Sánchez-Baena |
| collection | DOAJ |
| description | We analyze the ground state of a two-dimensional quantum system of a few strongly confined dipolar bosons. Dipoles arrange in different stable structures that depend on the tilting polarization angle and the anisotropy of the confining trap. To this end, we use the exact diffusion Monte Carlo method and the quantum results are compared with classical ones obtained by stochastic optimization using simulated annealing. We establish the stability domains for the different patterns and estimate the transition boundaries delimiting them. Our results show significant differences between the classical and quantum regimes which are mainly due to the quantum kinetic energy. |
| first_indexed | 2024-03-12T16:36:10Z |
| format | Article |
| id | doaj.art-211f06debb124cb6ac253483df0741b4 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:36:10Z |
| publishDate | 2018-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-211f06debb124cb6ac253483df0741b42023-08-08T14:50:15ZengIOP PublishingNew Journal of Physics1367-26302018-01-0120101303810.1088/1367-2630/aaa5f9Few trapped quantum dipoles: quantum versus classical structuresJ Sánchez-Baena0F Mazzanti1J Boronat2Departament de Física, Universitat Politècnica de Catalunya , Campus Nord B4-B5, E-08034, Barcelona, SpainDepartament de Física, Universitat Politècnica de Catalunya , Campus Nord B4-B5, E-08034, Barcelona, SpainDepartament de Física, Universitat Politècnica de Catalunya , Campus Nord B4-B5, E-08034, Barcelona, SpainWe analyze the ground state of a two-dimensional quantum system of a few strongly confined dipolar bosons. Dipoles arrange in different stable structures that depend on the tilting polarization angle and the anisotropy of the confining trap. To this end, we use the exact diffusion Monte Carlo method and the quantum results are compared with classical ones obtained by stochastic optimization using simulated annealing. We establish the stability domains for the different patterns and estimate the transition boundaries delimiting them. Our results show significant differences between the classical and quantum regimes which are mainly due to the quantum kinetic energy.https://doi.org/10.1088/1367-2630/aaa5f9Bose–Einstein condensationdipolar systemsfew-body physicsquantum Monte Carlo67.85.-d36.40.-c |
| spellingShingle | J Sánchez-Baena F Mazzanti J Boronat Few trapped quantum dipoles: quantum versus classical structures New Journal of Physics Bose–Einstein condensation dipolar systems few-body physics quantum Monte Carlo 67.85.-d 36.40.-c |
| title | Few trapped quantum dipoles: quantum versus classical structures |
| title_full | Few trapped quantum dipoles: quantum versus classical structures |
| title_fullStr | Few trapped quantum dipoles: quantum versus classical structures |
| title_full_unstemmed | Few trapped quantum dipoles: quantum versus classical structures |
| title_short | Few trapped quantum dipoles: quantum versus classical structures |
| title_sort | few trapped quantum dipoles quantum versus classical structures |
| topic | Bose–Einstein condensation dipolar systems few-body physics quantum Monte Carlo 67.85.-d 36.40.-c |
| url | https://doi.org/10.1088/1367-2630/aaa5f9 |
| work_keys_str_mv | AT jsanchezbaena fewtrappedquantumdipolesquantumversusclassicalstructures AT fmazzanti fewtrappedquantumdipolesquantumversusclassicalstructures AT jboronat fewtrappedquantumdipolesquantumversusclassicalstructures |