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Light-pulse atom interferometers are powerful quantum sensors, however, their accuracy for example in tests of the weak equivalence principle is limited by various spurious influences like magnetic stray fields or blackbody radiation.…

Quantum Physics · Physics 2020-05-12 Christian Ufrecht , Enno Giese

Multiport generalizations of beam splitters are the key component in multipath interferometers, which are important in a range of quantum state engineering and precision measurement schemes. Here we propose a straightforward method for…

Quantum Physics · Physics 2009-04-28 Jessica J. Cooper , David W. Hallwood , Jacob A. Dunningham

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…

We study theoretically and experimentally the influence of temporally shaping the light pulses in an atom interferometer, with a focus on the phase response of the interferometer. We show that smooth light pulse shapes allow rejecting high…

Atomic Physics · Physics 2017-12-22 Bess Fang , Nicolas Mielec , Denis Savoie , Matteo Altorio , Arnaud Landragin , Remi Geiger

The robustness of an atomic fountain interferometer with respect to variations in the initial velocity of the atoms and deviations from the optimal pulse amplitude is examined. We numerically simulate the dynamics of an interferometer in…

Quantum Physics · Physics 2023-02-13 Michael H. Goerz , Mark A. Kasevich , Vladimir S. Malinovsky

We propose an experiment for the first proof of the type I electric Aharonov-Bohm effect in an ion interferometer for hydrogen. The performances of three different beam separation schemes are simulated and compared. The coherent ion beam is…

Interferometry techniques are essential for extracting phase information from optical systems, enabling precise measurements of dispersion and highly sensitive detection of perturbations. While phase sensing offers enhanced sensitivity…

Large scale atom interferometers promise unrivaled strain sensitivity to midband (0.1 - 10 Hz) gravitational waves, and will probe a new parameter space in the search for ultra-light scalar dark matter. These atom interferometers require a…

Atomic Physics · Physics 2020-12-14 R. Nourshargh , S. Lellouch , S. Hedges , M. Langlois , K. Bongs , M. Holynski

We propose a scheme to significantly enhance the sensitivity of atom-interferometry performed with Bose-Einstein condensates. When a two-photon Raman transition is used to split the condensate into two modes, some information about the…

Quantum Physics · Physics 2013-02-04 S. A. Haine

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

Atom-interferometric quantum sensors could revolutionize navigation, civil engineering, and Earth observation. However, operation in real-world environments is challenging due to external interference, platform noise, and constraints on…

We introduce and implement an interferometric technique based on chirped femtosecond laser pulses and nonlinear optics. The interference manifests as a high-visibility (> 85%) phase-insensitive dip in the intensity of an optical beam when…

Quantum Physics · Physics 2008-11-07 R. Kaltenbaek , J. Lavoie , D. N. Biggerstaff , K. J. Resch

In this work we propose a novel single-atom interferometer based on a fully two-dimensional spatial adiabatic passage process using a system of three identical harmonic traps in a triangular geometry. While the transfer of a single atom…

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

Atom interferometers are a useful tool for precision measurements of fundamental physical phenomena, ranging from local gravitational field strength to the atomic fine structure constant. In such experiments, it is desirable to implement a…

Atomic interferometers measure forces and acceleration with exceptional precision. The conventional approach to atomic interferometry is to launch an atomic cloud into a ballistic trajectory and perform the wave-packet splitting in momentum…

Quantum Physics · Physics 2024-02-23 Jonathan Nemirovsky , Rafi Weill , Ilan Meltzer , Yoav Sagi

The existing techniques for measuring high-dimensional pure states of light in the orbital angular momentum (OAM) basis either involve a large number of single-pixel data acquisitions and substantial postselection errors that increase with…

Optics · Physics 2020-05-11 Girish Kulkarni , Suman Karan , Anand K. Jha

We present a new electro-optic modulation technique that enables a single laser diode to realize a cold-atom source and a quantum inertial sensor based on matter-wave interferometry. Using carrier-suppressed dual single-sideband modulation,…

Atomic Physics · Physics 2022-11-11 S. Templier , J. Hauden , P. Cheiney , F. Napolitano , H. Porte , P. Bouyer , B. Barrett , B. Battelier

Atom interferometers in optical cavities benefit from strong laser intensities and high-quality wavefronts. The laser frequency pairs that are needed for driving Raman transitions (often generated by phase modulating a monochromatic beam)…

Atomic Physics · Physics 2021-02-24 Sofus L. Kristensen , Matt Jaffe , Victoria Xu , Cristian D. Panda , Holger Müller

The optical system is a complex and precise subsystem for the atom interferometer (AI), especially for those used in field or space applications. Here, we introduce the design of the optical system of the China Space Station atom…