Measurement of total phase fluctuation in cold-atomic quantum simulators
Studying the dynamics of quantum many-body systems is often constrained by the limitations in probing relevant observables, especially in continuous systems. A powerful method to gain information about such systems is the reconstruction of local currents from the continuity equation. We show that th...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-05-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.L022031 |
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| _version_ | 1850148162195423232 |
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| author | Taufiq Murtadho Federica Cataldini Sebastian Erne Marek Gluza Mohammadamin Tajik Jörg Schmiedmayer Nelly H. Y. Ng |
| author_facet | Taufiq Murtadho Federica Cataldini Sebastian Erne Marek Gluza Mohammadamin Tajik Jörg Schmiedmayer Nelly H. Y. Ng |
| author_sort | Taufiq Murtadho |
| collection | DOAJ |
| description | Studying the dynamics of quantum many-body systems is often constrained by the limitations in probing relevant observables, especially in continuous systems. A powerful method to gain information about such systems is the reconstruction of local currents from the continuity equation. We show that this approach can be used to extract the total phase fluctuation of adjacent Bose gases. We validate our technique numerically and demonstrate its effectiveness by analyzing data from selected experiments simulating 1D quantum field theories through the phase difference of two parallel 1D Bose gases. This analysis reveals the previously hidden sector of the sum mode of the phase, which is important for studying long-time thermalization and out-of-equilibrium dynamics of the system. Our method is general and can be applied to other cold atom systems with spatial phase gradients, thereby expanding the scope and capabilities of cold-atomic quantum simulators. |
| format | Article |
| id | doaj-art-6d239d2f9a904f7d8661d65d85714151 |
| institution | OA Journals |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-6d239d2f9a904f7d8661d65d857141512025-08-20T02:27:19ZengAmerican Physical SocietyPhysical Review Research2643-15642025-05-0172L02203110.1103/PhysRevResearch.7.L022031Measurement of total phase fluctuation in cold-atomic quantum simulatorsTaufiq MurtadhoFederica CataldiniSebastian ErneMarek GluzaMohammadamin TajikJörg SchmiedmayerNelly H. Y. NgStudying the dynamics of quantum many-body systems is often constrained by the limitations in probing relevant observables, especially in continuous systems. A powerful method to gain information about such systems is the reconstruction of local currents from the continuity equation. We show that this approach can be used to extract the total phase fluctuation of adjacent Bose gases. We validate our technique numerically and demonstrate its effectiveness by analyzing data from selected experiments simulating 1D quantum field theories through the phase difference of two parallel 1D Bose gases. This analysis reveals the previously hidden sector of the sum mode of the phase, which is important for studying long-time thermalization and out-of-equilibrium dynamics of the system. Our method is general and can be applied to other cold atom systems with spatial phase gradients, thereby expanding the scope and capabilities of cold-atomic quantum simulators.http://doi.org/10.1103/PhysRevResearch.7.L022031 |
| spellingShingle | Taufiq Murtadho Federica Cataldini Sebastian Erne Marek Gluza Mohammadamin Tajik Jörg Schmiedmayer Nelly H. Y. Ng Measurement of total phase fluctuation in cold-atomic quantum simulators Physical Review Research |
| title | Measurement of total phase fluctuation in cold-atomic quantum simulators |
| title_full | Measurement of total phase fluctuation in cold-atomic quantum simulators |
| title_fullStr | Measurement of total phase fluctuation in cold-atomic quantum simulators |
| title_full_unstemmed | Measurement of total phase fluctuation in cold-atomic quantum simulators |
| title_short | Measurement of total phase fluctuation in cold-atomic quantum simulators |
| title_sort | measurement of total phase fluctuation in cold atomic quantum simulators |
| url | http://doi.org/10.1103/PhysRevResearch.7.L022031 |
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