Effect of Inter-Well Interactions on Non-Linear Beam Splitters for Matter-Wave Interferometers
We study the non-linear beam splitter in matter-wave interferometers using ultracold quantum gases in a double-well configuration in presence of non-local interactions inducing inter-well density-density coupling, as they can be realized, e.g., with dipolar gases. We explore this effect after consid...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-04-01
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| Series: | Condensed Matter |
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| Online Access: | https://www.mdpi.com/2410-3896/5/2/31 |
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| author | Cosetta Baroni Giacomo Gori Maria Luisa Chiofalo Andrea Trombettoni |
| author_facet | Cosetta Baroni Giacomo Gori Maria Luisa Chiofalo Andrea Trombettoni |
| author_sort | Cosetta Baroni |
| collection | DOAJ |
| description | We study the non-linear beam splitter in matter-wave interferometers using ultracold quantum gases in a double-well configuration in presence of non-local interactions inducing inter-well density-density coupling, as they can be realized, e.g., with dipolar gases. We explore this effect after considering different input states, in the form of either coherent, or Twin-Fock, or NOON states. We first review the non-interacting limit and the case in which only the local interaction is present, including the study of sensitivity near the self-trapping threshold. Then, we consider the two-mode model in the presence of inter-well interactions and consider the scaling of the sensitivity as a function of the non-local coupling strength. Our analysis clearly shows that non-local interactions can compensate the degradation of the sensitivity induced by local interactions, so that they may be used to restore optimal sensitivity. |
| first_indexed | 2024-03-10T20:20:43Z |
| format | Article |
| id | doaj.art-dbd7efd3d5cb43a78bbbec6d191358e6 |
| institution | Directory Open Access Journal |
| issn | 2410-3896 |
| language | English |
| last_indexed | 2024-03-10T20:20:43Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Condensed Matter |
| spelling | doaj.art-dbd7efd3d5cb43a78bbbec6d191358e62023-11-19T22:15:34ZengMDPI AGCondensed Matter2410-38962020-04-01523110.3390/condmat5020031Effect of Inter-Well Interactions on Non-Linear Beam Splitters for Matter-Wave InterferometersCosetta Baroni0Giacomo Gori1Maria Luisa Chiofalo2Andrea Trombettoni3Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, AustriaInstitut für Theoretische Physik, Universität Heidelberg, D-69120 Heidelberg, GermanyDipartimento di Fisica “Enrico Fermi”, Università di Pisa and INFN, Largo B. Pontecorvo 3, I-56127 Pisa, ItalyDepartment of Physics, University of Trieste, Strada Costiera 11, I-34151 Trieste, ItalyWe study the non-linear beam splitter in matter-wave interferometers using ultracold quantum gases in a double-well configuration in presence of non-local interactions inducing inter-well density-density coupling, as they can be realized, e.g., with dipolar gases. We explore this effect after considering different input states, in the form of either coherent, or Twin-Fock, or NOON states. We first review the non-interacting limit and the case in which only the local interaction is present, including the study of sensitivity near the self-trapping threshold. Then, we consider the two-mode model in the presence of inter-well interactions and consider the scaling of the sensitivity as a function of the non-local coupling strength. Our analysis clearly shows that non-local interactions can compensate the degradation of the sensitivity induced by local interactions, so that they may be used to restore optimal sensitivity.https://www.mdpi.com/2410-3896/5/2/31strongly correlated fluidsultracold quantum gasesatom interferometryprecision measurements |
| spellingShingle | Cosetta Baroni Giacomo Gori Maria Luisa Chiofalo Andrea Trombettoni Effect of Inter-Well Interactions on Non-Linear Beam Splitters for Matter-Wave Interferometers Condensed Matter strongly correlated fluids ultracold quantum gases atom interferometry precision measurements |
| title | Effect of Inter-Well Interactions on Non-Linear Beam Splitters for Matter-Wave Interferometers |
| title_full | Effect of Inter-Well Interactions on Non-Linear Beam Splitters for Matter-Wave Interferometers |
| title_fullStr | Effect of Inter-Well Interactions on Non-Linear Beam Splitters for Matter-Wave Interferometers |
| title_full_unstemmed | Effect of Inter-Well Interactions on Non-Linear Beam Splitters for Matter-Wave Interferometers |
| title_short | Effect of Inter-Well Interactions on Non-Linear Beam Splitters for Matter-Wave Interferometers |
| title_sort | effect of inter well interactions on non linear beam splitters for matter wave interferometers |
| topic | strongly correlated fluids ultracold quantum gases atom interferometry precision measurements |
| url | https://www.mdpi.com/2410-3896/5/2/31 |
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