Simulation-based evaluation of a cold atom interferometry gradiometer concept for gravity field recovery
Sign Up to like & getrecommendations! Published in 2017 at "Advances in Space Research"
DOI: 10.1016/j.asr.2017.12.005
Abstract: Abstract The prospects of future satellite gravimetry missions to sustain a continuous and improved observation of the gravitational field have stimulated studies of new concepts of space inertial sensors with potentially improved precision and stability.… read more here.
Keywords: cold atom; atom interferometry; field; gradiometer ... See more keywords
Ultracold atom interferometry in space
Sign Up to like & getrecommendations! Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-021-21628-z
Abstract: Bose-Einstein condensates (BECs) in free fall constitute a promising source for space-borne interferometry. Indeed, BECs enjoy a slowly expanding wave function, display a large spatial coherence and can be engineered and probed by optical techniques.… read more here.
Keywords: space; atom interferometry; interferometry; ultracold atom ... See more keywords
Twin-lattice atom interferometry
Sign Up to like & getrecommendations! Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-021-22823-8
Abstract: Inertial sensors based on cold atoms have great potential for navigation, geodesy, or fundamental physics. Similar to the Sagnac effect, their sensitivity increases with the space-time area enclosed by the interferometer. Here, we introduce twin-lattice… read more here.
Keywords: lattice atom; twin lattice; atom interferometry;
Multiport atom interferometry for inertial sensing
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.023617
Abstract: We present new techniques for inertial-sensing atom interferometers which produce multiple phase measurements per experimental cycle. With these techniques, we realize two types of multiport measurements, namely quadrature phase detection and real-time systematic phase cancellation,… read more here.
Keywords: atom interferometry; interferometry inertial; multiport atom; phase ... See more keywords
Biselective pulses for large-area atom interferometry
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.101.063625
Abstract: We present designs for the augmentation ``mirror'' pulses of large-momentum-transfer atom interferometers that maintain their fidelity as the wave-packet momentum difference is increased. These biselective pulses, tailored using optimal control methods to the evolving bimodal… read more here.
Keywords: momentum; pulses large; atom interferometry; biselective pulses ... See more keywords
Tractor atom interferometry
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.104.013307
Abstract: We propose a tractor atom interferometer (TAI) based on three-dimensional (3D) confinement and transport of split atomic wavefunction components in potential wells that follow programmed paths. The paths are programmed to split and recombine atomic… read more here.
Keywords: tractor; tractor atom; tai; atom interferometry ... See more keywords
Quantum tiltmeter with atom interferometry
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.96.063606
Abstract: An atom interferometer serves as a sensitive tiltmeter that can measure Earth's tidal deformations. read more here.
Keywords: quantum tiltmeter; tiltmeter atom; atom interferometry;
Readout-delay-free Bragg atom interferometry using overlapped spatial fringes
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.99.023615
Abstract: A method for mitigating the readout delay characteristic of Bragg-based atom interferometry is presented, utilizing an asymmetric Mach-Zehnder interferometer sequence to generate spatial fringes that are read out while still overlapped. The time of flight… read more here.
Keywords: readout delay; atom interferometry; spatial fringes; bragg ... See more keywords
Canceling the Gravity Gradient Phase Shift in Atom Interferometry.
Sign Up to like & getrecommendations! Published in 2017 at "Physical review letters"
DOI: 10.1103/physrevlett.119.253201
Abstract: Gravity gradients represent a major obstacle in high-precision measurements by atom interferometry. Controlling their effects to the required stability and accuracy imposes very stringent requirements on the relative positioning of freely falling atomic clouds, as… read more here.
Keywords: gravity; phase shift; gravity gradients; atom interferometry ... See more keywords
Atom Interferometry with the Sr Optical Clock Transition.
Sign Up to like & getrecommendations! Published in 2017 at "Physical review letters"
DOI: 10.1103/physrevlett.119.263601
Abstract: We report on the realization of a matter-wave interferometer based on single-photon interaction on the ultranarrow optical clock transition of strontium atoms. We experimentally demonstrate its operation as a gravimeter and as a gravity gradiometer.… read more here.
Keywords: clock transition; optical clock; interferometry optical; atom interferometry ... See more keywords
Atom Interferometry with Floquet Atom Optics.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.183202
Abstract: Floquet engineering offers a compelling approach for designing the time evolution of periodically driven systems. We implement a periodic atom-light coupling to realize Floquet atom optics on the strontium ^{1}S_{0}-^{3}P_{1} transition. These atom optics reach… read more here.
Keywords: atom optics; atom interferometry; floquet atom; optics ... See more keywords