Measuring and engineering entropy and spin squeezing in weakly linked Bose–Einstein condensates
We propose a method to infer the single-particle entropy of bosonic atoms in an optical lattice and to study the local evolution of entropy, spin squeezing and entropic inequalities for entanglement detection in such systems. This method is based on experimentally feasible measurements of non-neares...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2013-01-01
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| Series: | New Journal of Physics |
| Online Access: | https://doi.org/10.1088/1367-2630/15/6/063035 |
| _version_ | 1797751607801151488 |
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| author | F Cattani C Gross M K Oberthaler J Ruostekoski |
| author_facet | F Cattani C Gross M K Oberthaler J Ruostekoski |
| author_sort | F Cattani |
| collection | DOAJ |
| description | We propose a method to infer the single-particle entropy of bosonic atoms in an optical lattice and to study the local evolution of entropy, spin squeezing and entropic inequalities for entanglement detection in such systems. This method is based on experimentally feasible measurements of non-nearest-neighbour coherences. We study a specific example of dynamically controlling atom tunnelling between selected sites and show that this could potentially also improve the metrologically relevant spin squeezing. |
| first_indexed | 2024-03-12T16:50:59Z |
| format | Article |
| id | doaj.art-cccfb5d3e09c4aecb7bfc5cbd530e5ab |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:50:59Z |
| publishDate | 2013-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-cccfb5d3e09c4aecb7bfc5cbd530e5ab2023-08-08T11:11:22ZengIOP PublishingNew Journal of Physics1367-26302013-01-0115606303510.1088/1367-2630/15/6/063035Measuring and engineering entropy and spin squeezing in weakly linked Bose–Einstein condensatesF Cattani0C Gross1M K Oberthaler2J Ruostekoski3School of Mathematics, University of Southampton , Southampton SO17 1BJ, UKMax-Planck-Institut für Quantenoptik , D-85748 Garching, GermanyKirchoff-Institut für Physik, Universität Heidelberg , Im Neunheimer Feld 227, D-69120 Heidelberg, GermanySchool of Mathematics, University of Southampton , Southampton SO17 1BJ, UKWe propose a method to infer the single-particle entropy of bosonic atoms in an optical lattice and to study the local evolution of entropy, spin squeezing and entropic inequalities for entanglement detection in such systems. This method is based on experimentally feasible measurements of non-nearest-neighbour coherences. We study a specific example of dynamically controlling atom tunnelling between selected sites and show that this could potentially also improve the metrologically relevant spin squeezing.https://doi.org/10.1088/1367-2630/15/6/063035 |
| spellingShingle | F Cattani C Gross M K Oberthaler J Ruostekoski Measuring and engineering entropy and spin squeezing in weakly linked Bose–Einstein condensates New Journal of Physics |
| title | Measuring and engineering entropy and spin squeezing in weakly linked Bose–Einstein condensates |
| title_full | Measuring and engineering entropy and spin squeezing in weakly linked Bose–Einstein condensates |
| title_fullStr | Measuring and engineering entropy and spin squeezing in weakly linked Bose–Einstein condensates |
| title_full_unstemmed | Measuring and engineering entropy and spin squeezing in weakly linked Bose–Einstein condensates |
| title_short | Measuring and engineering entropy and spin squeezing in weakly linked Bose–Einstein condensates |
| title_sort | measuring and engineering entropy and spin squeezing in weakly linked bose einstein condensates |
| url | https://doi.org/10.1088/1367-2630/15/6/063035 |
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