1. Measurement of total phase fluctuation in cold-atomic quantum simulator
- Author
-
Murtadho, Taufiq, Cataldini, Federica, Erne, Sebastian, Gluza, Marek, Schmiedmayer, Jörg, and Ng, Nelly H. Y.
- Subjects
Condensed Matter - Quantum Gases ,Quantum Physics - Abstract
Studying the dynamics of quantum many-body systems is often constrained by the limitations in probing relevant observables, especially in continuous systems. A prominent example is two parallel 1D Bose gases, which simulate 1D quantum field theories through the phase difference probed by interference. Here we introduce a method to extract the total phase of the combined system based on a general principle of reconstructing phase gradient from density dynamics using continuity equation. This approach reveals the previously hidden sector of the sum mode of the two 1D Bose gases. We validate our technique numerically and demonstrate its effectiveness by analysing data from selected experiments, showcasing how our method expands the scope and capabilities of cold-atomic quantum simulators., Comment: 4+10 pages, 10 figures
- Published
- 2024