Finite Pulse-Time Effects in Long-Baseline Quantum Clock Interferometry
| Autor: | Janson, Gregor, Friedrich, Alexander, Lopp, Richard |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | AVS Quantum Sci. 1 June 2024; 6 (2): 024403 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1116/5.0178230 |
| Popis: | Quantum-clock interferometry has been suggested as a quantum probe to test the universality of free fall (UFF) and the universality of gravitational redshift (UGR). In typical experimental schemes it seems advantageous to employ Doppler-free E1-M1 transitions which have so far been investigated in quantum gases at rest. Here, we consider the fully quantized atomic degrees of freedom and study the interplay of the quantum center-of-mass (COM) $-$ that can become delocalized $-$ together with the internal clock transitions. In particular, we derive a model for finite-time E1-M1 transitions with atomic intern-extern coupling and arbitrary position-dependent laser intensities. We further provide generalizations to the ideal expressions for perturbed recoilless clock pulses. Finally, we show at the example of a Gaussian laser beam that the proposed quantum-clock interferometers are stable against perturbations from varying optical fields for a sufficiently small quantum delocalization of the atomic COM. Comment: 20 pages, 6 figures, V2: updated to match published version |
| Databáze: | arXiv |
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