Quantum probe spectroscopy for cold atomic systems
We study a two-level impurity coupled locally to a quantum gas on an optical lattice. For state-dependent interactions between the impurity and the gas, we show that its evolution encodes information on the local excitation spectrum of the gas at the coupling site. Based on this, we design a nondest...
| 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/aae418 |
| _version_ | 1797750538107879424 |
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| author | A Usui B Buča J Mur-Petit |
| author_facet | A Usui B Buča J Mur-Petit |
| author_sort | A Usui |
| collection | DOAJ |
| description | We study a two-level impurity coupled locally to a quantum gas on an optical lattice. For state-dependent interactions between the impurity and the gas, we show that its evolution encodes information on the local excitation spectrum of the gas at the coupling site. Based on this, we design a nondestructive method to probe the system’s excitations in a broad range of energies by measuring the state of the probe using standard atom optics methods. We illustrate our findings with numerical simulations for quantum lattice systems, including realistic dephasing noise on the quantum probe, and discuss practical limits on the probe dephasing rate to fully resolve both regular and chaotic spectra. |
| first_indexed | 2024-03-12T16:35:11Z |
| format | Article |
| id | doaj.art-1fda42fc7ee647479c84b8a1fd187e78 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:35:11Z |
| publishDate | 2018-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-1fda42fc7ee647479c84b8a1fd187e782023-08-08T14:54:52ZengIOP PublishingNew Journal of Physics1367-26302018-01-01201010300610.1088/1367-2630/aae418Quantum probe spectroscopy for cold atomic systemsA Usui0B Buča1J Mur-Petit2https://orcid.org/0000-0002-4018-1323Quantum Systems Unit, OIST Graduate University , Onna, Okinawa 904-0495, JapanClarendon Laboratory, University of Oxford , Parks Road, Oxford OX1 3PU, United KingdomClarendon Laboratory, University of Oxford , Parks Road, Oxford OX1 3PU, United KingdomWe study a two-level impurity coupled locally to a quantum gas on an optical lattice. For state-dependent interactions between the impurity and the gas, we show that its evolution encodes information on the local excitation spectrum of the gas at the coupling site. Based on this, we design a nondestructive method to probe the system’s excitations in a broad range of energies by measuring the state of the probe using standard atom optics methods. We illustrate our findings with numerical simulations for quantum lattice systems, including realistic dephasing noise on the quantum probe, and discuss practical limits on the probe dephasing rate to fully resolve both regular and chaotic spectra.https://doi.org/10.1088/1367-2630/aae418atomic gasesoptical latticesatom interferometryquantum probesquantum sensingquantum chaos |
| spellingShingle | A Usui B Buča J Mur-Petit Quantum probe spectroscopy for cold atomic systems New Journal of Physics atomic gases optical lattices atom interferometry quantum probes quantum sensing quantum chaos |
| title | Quantum probe spectroscopy for cold atomic systems |
| title_full | Quantum probe spectroscopy for cold atomic systems |
| title_fullStr | Quantum probe spectroscopy for cold atomic systems |
| title_full_unstemmed | Quantum probe spectroscopy for cold atomic systems |
| title_short | Quantum probe spectroscopy for cold atomic systems |
| title_sort | quantum probe spectroscopy for cold atomic systems |
| topic | atomic gases optical lattices atom interferometry quantum probes quantum sensing quantum chaos |
| url | https://doi.org/10.1088/1367-2630/aae418 |
| work_keys_str_mv | AT ausui quantumprobespectroscopyforcoldatomicsystems AT bbuca quantumprobespectroscopyforcoldatomicsystems AT jmurpetit quantumprobespectroscopyforcoldatomicsystems |