Abstract: The present application relates to an atom interferometry method. The atom interferometry method releases atoms from an atom source into an interferometer region. Pulses of light are then directed at the atoms to place the atoms in different quantum states and to recombine the quantum states such that the recombined quantum states interfere with each other when the quantum states are overlapped spatially. The recombined quantum states creates a spatial fringe pattern with a phase. The spatial fringe pattern and the phase of the spatial fringe pattern are detected when the quantum states are overlapped spatially. The overlapped spatial fringe pattern is then used to measure physical quantities such as local gravity, the gravitational constant, the fine structure constant, the ratio of Planck's constant to the atomic mass, rotation of the atom interferometer, acceleration of the atom interferometer, and the like.

Abstract: The present disclosure provides an optical system (100) for controlling atoms. The optical system (100) comprises a laser source (10) for generating a laser beam at a carrier frequency and microwave and radio frequency (MW/RF) sources (41 and 45) for generating I and Q modulation signals at a set of frequencies, wherein the set of frequencies comprises at least two frequencies. The optical system (100) further comprises an IQ modulator (20) configured for receiving the laser beam and the generated signals at the set of frequencies and for outputting an output laser beam (Eout) based on the received laser beam and the generated signals at the set of frequencies, wherein the output laser beam (Eout) comprises multi-toned optical single-sidebands (MT-OSSB) at the set of frequencies with the carrier frequency being suppressed.

Abstract: The present application relates to an atom interferometry method. The atom interferometry method releases atoms from an atom source into an interferometer region. Pulses of light are then directed at the atoms to place the atoms in different quantum states and to recombine the quantum states such that the recombined quantum states interfere with each other when the quantum states are overlapped spatially. The recombined quantum states creates a spatial fringe pattern with a phase. The spatial fringe pattern and the phase of the spatial fringe pattern are detected when the quantum states are overlapped spatially. The overlapped spatial fringe pattern is then used to measure physical quantities such as local gravity, the gravitational constant, the fine structure constant, the ratio of Planck's constant to the atomic mass, rotation of the atom interferometer, acceleration of the atom interferometer, and the like.