High Sensitivity Multi-Axes Rotation Sensing Using Large Momentum Transfer Point Source Atom Interferometry

A point source interferometer (PSI) is a device where atoms are split and recombined by applying temporal sequence of Raman pulses during the expansion cloud cold behaving approximately as source. The PSI can work sensitive multi-axes gyroscope that automatically filter out signal from accelerations. phase shift arising rotations proportional to momentum transferred each atom pulses. Therefore, increasing transfer, it should be possible enhance sensitivity PSI. Here, we investigate degree enhancement in could achieved augmenting with large transfer (LMT) employing many alternating directions. We analyze how factors such Doppler detuning, spontaneous emission, finite initial size atomic compromise advantage LMT find optimal under these limitations, both semi-classical model which motion center mass described quantum mechanically. identify set realistic parameters for improve factor nearly 40.