Fig. 1: Large momentum transfer interferometer.
From: Optimal Floquet state engineering for large scale atom interferometers
a Scheme of the experimental setup. A vertical optical lattice is used to manipulate the atom momentum states. Fluorescence imaging is used to detect the atoms after a time of flight. b Space-time diagram of the LMT interferometer based on a sequence consisting of two π/2 pulses separated by a π pulse. Between these pulses, the two arms are successively accelerated and decelerated by a sequence of additional lattice pulses. The atoms are in free fall for \({T}^{{\prime} }\) between the acceleration and deceleration stages. c Scheme of the acceleration-deceleration process. Blue dots represent the momentum state decomposition at different times of the sequence. d Stack of images of atomic ensembles for different maximum momentum separations. The images are taken after a full sequence of acceleration and deceleration for a single arm and after a time of flight of 14 ms. A maximum separation of 600ℏk corresponds to a transfer of 1200 ℏk per arm (acceleration + deceleration).
