Finite Pulse-Time Effects in Long-Baseline Quantum Clock Interferometry
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866916238374993920 |
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| author | Janson, Gregor Friedrich, Alexander Lopp, Richard |
| author_facet | Janson, Gregor Friedrich, Alexander Lopp, Richard |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_14426 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Finite Pulse-Time Effects in Long-Baseline Quantum Clock Interferometry Janson, Gregor Friedrich, Alexander Lopp, Richard Quantum Physics General Relativity and Quantum Cosmology Atomic Physics 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. |
| title | Finite Pulse-Time Effects in Long-Baseline Quantum Clock Interferometry |
| topic | Quantum Physics General Relativity and Quantum Cosmology Atomic Physics |
| url | https://arxiv.org/abs/2309.14426 |