Coherence Properties of Guided-Atom Interferometers
H. Kreutzmann, U. V. Poulsen, M. Lewenstein, R. Dumke, W. Ertmer, G., Birkl, A. Sanpera
TL;DR
This paper investigates the coherence properties of guided-atom interferometers, demonstrating their ability to produce clear interference fringes even with thermal input states, highlighting their robustness and multimode operation.
Contribution
It provides a detailed analysis of coherence in guided-atom interferometers, showing their effectiveness with thermal states and their potential for robust quantum measurements.
Findings
Interference fringes observed with thermal input states
Guided-atom interferometers support multimode operation
High coherence robustness demonstrated
Abstract
We present a detailed investigation of the coherence properties of beam splitters and Mach-Zehnder interferometers for guided atoms. It is demonstrated that such a setup permits coherent wave packet splitting and leads to the appearance of interference fringes. We study single-mode and thermal input states and show that even for thermal input states interference fringes can be clearly observed, thus demonstrating the multimode operation and the robustness of the interferometer.
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