Systematic analysis of relative phase extraction in one-dimensional Bose gases interferometry
arXiv:2403.05528 · doi:10.21468/SciPostPhys.18.2.065
Abstract
Spatially resolved relative phase measurement of two adjacent 1D Bose gases is enabled by matter-wave interference upon free expansion. However, longitudinal dynamics is typically ignored in the analysis of experimental data. We provide an analytical formula showing a correction to the readout of the relative phase due to longitudinal expansion and mixing with the common phase. We numerically assess the error propagation to the estimation of the gases' physical quantities such as correlation functions and temperature. Our work characterizes the reliability and robustness of interferometric measurements, directing us to the improvement of existing phase extraction methods necessary to observe new physical phenomena in cold-atomic quantum simulators.
Final published version
References in corpus (11)
- Atom Interferometers
- Extension of Bogoliubov theory to quasi-condensates
- Ultracold atoms out of equilibrium
- Linear response theory for a pair of coupled one-dimensional condensates of interacting atoms
- The dynamics and prethermalization of one dimensional quantum systems probed through the full distributions of quantum noise
- Experimental verification of the area law of mutual information in a quantum field simulator
- Quantum gas magnifier for sub-lattice-resolved imaging of three-dimensional quantum systems
- Experimental Observation of Curved Light-Cones in a Quantum Field Simulator
- Josephson oscillations in split one-dimensional Bose gases
- Thermometry of one-dimensional Bose gases with neural networks
- Mechanisms for the emergence of Gaussian correlations