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We report the realization of a matter-wave interferometer based on Raman transitions which simultaneously interrogates two different atomic species ($^{87}$Rb and $^{85}$Rb). The simultaneous aspect of our experiment presents encouraging…

Atomic Physics · Physics 2013-10-30 A. Bonnin , N. Zahzam , Y. Bidel , A. Bresson

Borehole gravity sensing can be used in a number of applications to measure features around a well including rock-type change mapping and determination of reservoir porosity. Quantum technology gravity sensors based on atom interferometry…

We present a precision gravimeter based on coherent Bragg diffraction of freely falling cold atoms. Traditionally, atomic gravimeters have used stimulated Raman transitions to separate clouds in momentum space by driving transitions between…

Echo atom interferometers have emerged as interesting alternatives to Raman interferometers for the realization of precise measurements of the gravitational acceleration $g$ and the determination of the atomic fine structure through…

Engineering quantum particle systems, such as quantum simulators and quantum cellular automata, relies on full coherent control of quantum paths at the single particle level. Here we present an atom interferometer operating with single…

Atom-interferometer gyroscopes have attracted much attention for their potential superior long-term stability and extremely low drift. For such high precision instrument, a self-calibration to achieve an absolute rotation measurement is…

A detailed analysis of the most relevant sources of phase noise in an atomic interferometer is carried out, both theoretically and experimentally. Even a short interrogation time of 100 ms allows our cold atom gravimeter to reach an…

We analyze theoretically the sensitivity of accelerometry and rotation sensing with a point source interferometer employing large momentum transfer (LMT) and present a design of an inertial measurement unit (IMU) that can measure rotation…

Quantum Physics · Physics 2024-06-19 Jinyang Li , Timothy Kovachy , Jason Bonacum , Selim M. Shahriar

We demonstrate an atom interferometer measurement protocol compatible with operation on a dynamic platform. Our method employs two open interferometers, derived from the same atomic source, with different interrogation times to eliminate…

We sense the motion of a trapped atomic ion using a sequence of state-dependent ultrafast momentum kicks. We use this atom interferometer to characterize a nearly-pure quantum state with $n=1$ phonon and accurately measure thermal states…

Quantum Physics · Physics 2016-03-23 K. G. Johnson , B. Neyenhuis , J. Mizrahi , J. D. Wong-Campos , C. Monroe

We demonstrate an atom interferometer that uses a laser-cooled continuous beam of $^{87}$Rb atoms having velocities of 10--20 m/s. With spatially separated Raman beams to coherently manipulate the atomic wave packets, Mach--Zehnder…

Atomic Physics · Physics 2015-06-18 H. B. Xue , Y. Y. Feng , S. Chen , X. J. Wang , X. S. Yan , Z. K. Jiang , Z. Y. Zhou

In this paper, we show that an atom interferometer inertial sensor, when associated to the auxiliary measurement of external vibrations, can be operated beyond its linear range and still keep a high acceleration sensitivity. We propose and…

Atom interferometry relies on the separation and recombination of atom wavepackets. When the two paths overlap perfectly at the end of the interferometer, the phase is insensitive to the atomic velocity distribution. Here, we show that,…

Atomic Physics · Physics 2020-06-26 Léo Morel , Zhibin Yao , Pierre Cladé , Saïda Guellati-Khélifa

We propose two distinct atom interferometer gravitational wave detectors, one terrestrial and another satellite-based, utilizing the core technology of the Stanford $10 \text{m}$ atom interferometer presently under construction. The…

General Relativity and Quantum Cosmology · Physics 2009-06-22 Savas Dimopoulos , Peter W. Graham , Jason M. Hogan , Mark A. Kasevich , Surjeet Rajendran

We present the first demonstration of an inertially sensitive atomic interferometer based on a continuous, rather than pulsed, atomic beam at sub-Doppler temperatures in three dimensions. We demonstrate 30\% fringe contrast in continuous,…

Atomic Physics · Physics 2022-02-24 J. M. Kwolek , A. T. Black

A single-seed, module-based compact laser system is demonstrated on a transportable $^{87}\text{Rb}$-based high-precision atomic gravimeter. All the required laser frequencies for the atom interferometry are provided by free-space…

Atomic Physics · Physics 2022-10-24 Fong En Oon , Rainer Dumke

We develop a general framework for calculating the leading-order, general relativistic contributions to the gravitational phase shift in single-photon atom interferometers within the context of linearized gravity. We show that the atom…

General Relativity and Quantum Cosmology · Physics 2025-05-07 Leonardo Badurina , Yufeng Du , Vincent S. H. Lee , Yikun Wang , Kathryn M. Zurek

Cold-atom interferometry is a powerful tool for high-precision measurements of the quantum properties of atoms, many-body interactions and gravity. Further enhancement of sensitivity and reduction of complexity of these devices are crucial…

Atomic Physics · Physics 2012-02-23 Jovana Petrovic , Ivan Herrera , Pietro Lombardi , Francesco S. Cataliotti

Atom interferometers provide exquisite measurements of the properties of non-inertial frames. While atomic interactions are typically detrimental to good sensing, efforts to harness entanglement to improve sensitivity remain tantalizing.…

Quantum Gases · Physics 2016-11-15 Stephen Ragole , Jacob M. Taylor