Robust inertial sensing with point-source atom interferometry for interferograms spanning a partial period

Chen, Yun-Jhih; Hansen, Azure; Shuker, Moshe; Boudot, Rodolphe; Kitching, John; Donley, Elizabeth A.

doi:10.1364/oe.399988

Cited by 6 publications

(3 citation statements)

References 32 publications

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“…Free-space and point-source AIs typically employ atomic fountains or dropped/freely expanding atom clouds. The point-source method supports efficient readout and data reduction [36], enables high bandwidth, and affords efficiency in the partial-fringe regime. Atomic fountains, typically employed in free-space AI, maximize interferometric time and thus increase sensitivity [25][26][27], but may require large experimental setups.…”

Section: Introductionmentioning

confidence: 99%

Principles of tractor atom interferometry

Raithel

Duspayev

Dash

et al. 2022

Quantum Sci. Technol.

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We present possible design concepts for a tractor atom interferometer (TAI) based on three-dimensional confinement and transport of ultracold atoms. The confinement reduces device size and wave-packet dispersion, enables arbitrary holding times, and facilitates control to create complex trajectories that allow for optimization to cancel unwanted sensitivity, fast splitting and recombination, and suppression of detrimental nonadiabatic excitation. Thus, the design allows for further advancement of compact, high-sensitivity, quantum sensing technology. In particular, we focus on the implementation of quantum-enhanced accelerometers and gyroscopes. We discuss TAI protocols for both spin-dependent and scalar trapping potentials. Using optimal control theory, we demonstrate the splitting of the wave function on a time scale two orders of magnitude shorter than the previous proposal using adiabatic dynamics, thus maximizing the time spent at full separation, where the interferometric phase is accumulated. The performance estimates for TAI give a promising perspective for atom-interferometry-based sensing, significantly exceeding the sensitivities of current state-of-the-art devices.

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Section: Introductionmentioning

confidence: 99%

Principles of tractor atom interferometry

Raithel

Duspayev

Dash

et al. 2022

Quantum Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Free-space and point-source AIs typically employ atomic fountains or dropped / freely expanding atom clouds. The pointsource method supports efficient readout and data reduction [36], enables high bandwidth, and affords efficiency in the partial-fringe regime. Atomic fountains, typically employed in free-space AI, maximize interferometric time and thus increase sensitivity [25][26][27], but may require large experimental setups.…”

Section: Introductionmentioning

confidence: 99%

Principles of tractor atom interferometry

Raithel¹,

Duspayev²,

Dash³

et al. 2022

Preprint

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We present possible design concepts for a tractor atom interferometer (TAI) based on threedimensional confinement and transport of ultracold atoms. The confinement reduces device size and wave-packet dispersion, enables arbitrary holding times, and facilitates control to create complex trajectories that allow for optimization to cancel unwanted sensitivity, fast splitting and recombination, and suppression of detrimental nonadiabatic excitation. Thus, the design allows for further advancement of compact, high-sensitivity, quantum sensing technology. In particular, we focus on the implementation of quantum-enhanced accelerometers and gyroscopes. We discuss TAI protocols for both spin-dependent and scalar trapping potentials. Using optimal control theory, we demonstrate the splitting of the wave function on a time scale two orders of magnitude shorter than the previous proposal using adiabatic dynamics, thus maximizing the time spent at full separation, where the interferometric phase is accumulated. Lastly, we explore the possibility of including non-classical correlations between the atoms to improve sensitivity. The performance estimates for TAI give a promising perspective for atom-interferometry-based sensing, significantly exceeding the sensitivities of current state-of-the-art devices.

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“…A challenge in AI design is to achieve a high degree of sensitivity with respect to the measured quantity (e.g., an acceleration) while minimizing geometrical footprint of the apparatus and maximizing readout bandwidth to allow for practical applications. Types of AIs include free-space [21][22][23], point-source [24][25][26], and guided-wave [27,28] AIs. Free-space and pointsource AIs typically employ atomic fountains or dropped atom clouds.…”

mentioning

confidence: 99%

Tractor Atom Interferometry

Duspayev,

Raithel

2021

Preprint

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We propose a tractor atom interferometer (TAI) based on three-dimensonal tight confinement and transport of split atomic wavefunction components in programmable tractor traps. Using Crank-Nicolson simulations of scalar and spinor wavefunction evolution, we confirm validity of the path-integral formalism over the pre-determined tractor-trap trajectories in several examples, quantify projected gravimeter sensitivity, and study robustness of scalar and spinor TAI matter-wave splitters against non-adiabatic effects. We discuss the advantages of TAI over other matter-wave interferometers and address aspects for future experimental realizations of TAI for acceleration and rotation sensing.

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Robust inertial sensing with point-source atom interferometry for interferograms spanning a partial period

Cited by 6 publications

References 32 publications

Principles of tractor atom interferometry

Principles of tractor atom interferometry

Principles of tractor atom interferometry

Tractor Atom Interferometry

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