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We describe a light-pulse atom interferometer that is suitable for any species of atom and even for electrons and protons as well as their antiparticles, in particular for testing the Einstein equivalence principle with antihydrogen. The…

We report on the first atom interferometer based on Bragg diffraction in a fountain of alkaline-earth atoms, namely $^{88}$Sr. We demonstrate large momentum transfer to the atoms up to eight photon recoils and the use of the interferometer…

Atomic Physics · Physics 2015-11-23 T. Mazzoni , X. Zhang , R. Del Aguila , L. Salvi , N. Poli , G. M. Tino

We measure the transient absorption of single gold particles with a common-path interferometer. The prompt electronic part of the signal provides high-contrast images for diameters as small as 10 nm. Mechanical vibrations of single…

Other Condensed Matter · Physics 2007-05-23 Meindert A. van Dijk , Markus Lippitz , Michel Orrit

The effect of the Earth's gravitational potential on a quantum wave function has only been observed for massive particles. In this paper we present a scheme to measure a gravitationally induced phase shift on a single photon travelling in a…

We report on the experimental demonstration of a horizontal accelerometer based on atom interferometry using counterpropagative Raman transitions between the states $F=1,m_F=\mp1$ and $F=2,m_F=\pm1$ of $^{87}$Rb. Compared to the $F=1,m_F=0…

Atom interferometry is a powerful experimental technique that can be employed to search for the oscillation of atomic transition energies induced by ultralight scalar dark matter (ULDM). Previous studies have focused on the sensitivity to…

Cosmology and Nongalactic Astrophysics · Physics 2022-03-01 Leonardo Badurina , Diego Blas , Christopher McCabe

Atomic accelerometers and gravimeters are usually based on freely-falling atoms in atomic fountains, which not only limits their size, but also their robustness to environmental factors such as tilts, magnetic fields or vibrations. Such…

Atomic Physics · Physics 2023-11-06 Cristian D. Panda , Matt Tao , Miguel Ceja , Andrew Reynoso , Holger Müller

We here present a high sensitivity gravity-gradiometer based on atom interferometry. In our apparatus, two clouds of laser-cooled rubidium atoms are launched in fountain configuration and interrogated by a Raman interferometry sequence to…

Atomic Physics · Physics 2014-11-20 F. Sorrentino , L. Cacciapuoti , Y. -H. Lien , M. Prevedelli , G. Rosi , G. M. Tino

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

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 realize an interferometer with an atomic Fermi gas trapped in an optical lattice under the influence of gravity. The single-particle interference between the eigenstates of the lattice results in macroscopic Bloch oscillations of the…

Soft Condensed Matter · Physics 2009-11-10 G. Roati , E. de Mirandes , F. Ferlaino , H. Ott , G. Modugno , M. Inguscio

In this work we study the influence of the newtonian noise on atom interferometers applied to the detection of gravitational waves, and we compute the resulting limits to the sensitivity in two different configurations: a single atom…

General Relativity and Quantum Cosmology · Physics 2013-10-17 Flavio Vetrano , Andrea Viceré

The extreme miniaturization of a cold-atom interferometer accelerometer requires the development of novel technologies and architectures for the interferometer subsystems. Here we describe several component technologies and a laser system…

Does gravity influence local measurements? We use a dual-species atom interferometer with $2\,\text{s}$ of free-fall time to measure the relative acceleration between $^{85}$Rb and $^{87}$Rb wave packets in the Earth's gravitational field.…

Atomic Physics · Physics 2020-11-06 Peter Asenbaum , Chris Overstreet , Minjeong Kim , Joseph Curti , Mark A. Kasevich

In this paper, we propose a new paradigm for atom interferometry and demonstrate that there exists a universal set of atom optic components for inertial sensing. These components constitute gates with which we carry out quantum operations…

Quantum Physics · Physics 2024-10-24 Catie LeDesma , Kendall Mehling , John Drew Wilson , Marco Nicotra , Murray Holland

Optics and interferometry with matter waves is the art of coherently manipulating the translational motion of particles like neutrons, atoms and molecules. Coherent atom optics is an extension of techniques that were developed for…

Quantum Physics · Physics 2015-04-21 J. -F. Schaff , T. Langen , J. Schmiedmayer

Atom interferometry represents a quantum leap in the technology for the ultra-precise monitoring of accelerations and rotations and, therefore, for all the science that relies on the latter quantities. These sensors evolved from a new kind…

The gravimeter based on atom interferometry has potentially wide applications on building the gravity networks, geophysics as well as gravity assisted navigation. Here, we demonstrate experimentally a portable atom gravimeter operating in…

Atomic Physics · Physics 2022-03-22 Bin Chen , Jinbao Long , Hongtai Xie , Chenyang Li , Luokan Chen , Bonan Jiang , Shuai Chen

Interferometry using discrete energy levels in nuclear, atomic or molecular systems is the foundation for a wide range of physical phenomena and enables powerful techniques such as nuclear magnetic resonance, electron spin resonance,…

Quantum Physics · Physics 2016-11-30 Stéphane Clemmen , Alessandro Farsi , Sven Ramelow , Alexander L. Gaeta

Atom interferometers provide a powerful tool for measuring physical constants and testifying fundamental physics with unprecedented precision. Conventional atom interferometry focuses on the phase difference between two paths and utilizes…

Quantum Gases · Physics 2024-06-25 Peng Peng , Dekai Mao , Yi Liang , Guoling Yin , Hongmian Shui , Bo Song , Xiaoji Zhou