Automated graph-based detection of quantum control schemes: Application to molecular laser cooling
One of the demanding frontiers in ultracold quantum science is identifying laser cooling schemes for complex atoms and molecules out of their vast spectra of internal states. Motivated by the prospect of expanding the set of available ultracold molecules for applications in fundamental physics, chem...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-02-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.013135 |
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| _version_ | 1832086427499757568 |
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| author | Anna Dawid Niccoló Bigagli Daniel W. Savin Sebastian Will |
| author_facet | Anna Dawid Niccoló Bigagli Daniel W. Savin Sebastian Will |
| author_sort | Anna Dawid |
| collection | DOAJ |
| description | One of the demanding frontiers in ultracold quantum science is identifying laser cooling schemes for complex atoms and molecules out of their vast spectra of internal states. Motivated by the prospect of expanding the set of available ultracold molecules for applications in fundamental physics, chemistry, astrochemistry, and quantum simulation, we propose and demonstrate an automated graph-based search approach for viable laser cooling schemes. The method is time efficient, reproduces the results of previous manual searches, and reveals a plethora of new potential laser cooling schemes. We discover laser cooling schemes for YO, C_{2}, OH^{+}, CN, and CO_{2}, including surprising schemes that start from highly excited states or do not rely on a strong main transition. A central insight of this work is that the reinterpretation of quantum states and transitions between them as a graph can dramatically enhance the ability to identify new quantum control schemes for complex quantum systems. As such, this approach will also apply to complex atoms and, in fact, any complex many-body quantum system with a discrete spectrum of internal states. |
| format | Article |
| id | doaj-art-46c0283940814838acb840f84f7dc526 |
| institution | Kabale University |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-46c0283940814838acb840f84f7dc5262025-02-06T15:44:43ZengAmerican Physical SocietyPhysical Review Research2643-15642025-02-017101313510.1103/PhysRevResearch.7.013135Automated graph-based detection of quantum control schemes: Application to molecular laser coolingAnna DawidNiccoló BigagliDaniel W. SavinSebastian WillOne of the demanding frontiers in ultracold quantum science is identifying laser cooling schemes for complex atoms and molecules out of their vast spectra of internal states. Motivated by the prospect of expanding the set of available ultracold molecules for applications in fundamental physics, chemistry, astrochemistry, and quantum simulation, we propose and demonstrate an automated graph-based search approach for viable laser cooling schemes. The method is time efficient, reproduces the results of previous manual searches, and reveals a plethora of new potential laser cooling schemes. We discover laser cooling schemes for YO, C_{2}, OH^{+}, CN, and CO_{2}, including surprising schemes that start from highly excited states or do not rely on a strong main transition. A central insight of this work is that the reinterpretation of quantum states and transitions between them as a graph can dramatically enhance the ability to identify new quantum control schemes for complex quantum systems. As such, this approach will also apply to complex atoms and, in fact, any complex many-body quantum system with a discrete spectrum of internal states.http://doi.org/10.1103/PhysRevResearch.7.013135 |
| spellingShingle | Anna Dawid Niccoló Bigagli Daniel W. Savin Sebastian Will Automated graph-based detection of quantum control schemes: Application to molecular laser cooling Physical Review Research |
| title | Automated graph-based detection of quantum control schemes: Application to molecular laser cooling |
| title_full | Automated graph-based detection of quantum control schemes: Application to molecular laser cooling |
| title_fullStr | Automated graph-based detection of quantum control schemes: Application to molecular laser cooling |
| title_full_unstemmed | Automated graph-based detection of quantum control schemes: Application to molecular laser cooling |
| title_short | Automated graph-based detection of quantum control schemes: Application to molecular laser cooling |
| title_sort | automated graph based detection of quantum control schemes application to molecular laser cooling |
| url | http://doi.org/10.1103/PhysRevResearch.7.013135 |
| work_keys_str_mv | AT annadawid automatedgraphbaseddetectionofquantumcontrolschemesapplicationtomolecularlasercooling AT niccolobigagli automatedgraphbaseddetectionofquantumcontrolschemesapplicationtomolecularlasercooling AT danielwsavin automatedgraphbaseddetectionofquantumcontrolschemesapplicationtomolecularlasercooling AT sebastianwill automatedgraphbaseddetectionofquantumcontrolschemesapplicationtomolecularlasercooling |