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Related papers: Ramsey-Bord\'e interferometer for electrons

200 papers

We demonstrate an optical clock based on Ramsey-Bord\'e interferometry in a laser-cooled ${}^{40}$Ca beam. The mean velocity is reduced by an order of magnitude relative to a thermal beam and the transverse temperature approaches the…

Atomic Physics · Physics 2025-01-29 William G. Tobias , Bryan Hemingway , Steven Peil

We adapt a typical Ramsey interferometer by inserting a linear accelerator capable of accelerating an atom inside a single-mode cavity. We demonstrate that this simple scheme allows us to estimate the effects of acceleration radiation via…

Quantum Physics · Physics 2020-08-10 Helder A. S. Costa , Irismar G. da Paz , Paulo R. S. Carvalho , Marcos Sampaio

We demonstrate that spin-dependent electron diffraction is possible for a smooth range of transverse electron momenta in a two-photon Bragg scattering scenario of the Kapitza-Dirac effect. Our analysis is rendered possible by introducing a…

Quantum Physics · Physics 2024-01-19 Yang Wang , Sven Ahrens

We present the experimental realization and characterization of a Ramsey interferometer based on optically trapped ultracold potassium atoms, where one state is continuously coupled by an off-resonant laser field to a highly-excited Rydberg…

Atomic Physics · Physics 2019-02-13 A. Arias , G. Lochead , T. M. Wintermantel , S. Helmrich , S. Whitlock

Atomic Kapitza-Dirac (KD) scattering in the classical standing wave of lights is widely used to make the laser-pulsed atom interferometers. In this theoretical work, we show that the dielectric nanoparticle can be used as a weak light…

Quantum Physics · Physics 2021-11-30 M. Zhang

Ramsey interferometers (RIs) using internal electronic or nuclear states find wide applications in science and engineering. We develop a matter wave Ramsey interferometer for motional quantum states exploiting the S- and D-bands of an…

Quantum Gases · Physics 2018-11-27 D. Hu , L. X. Niu , S. J. Jin , X. Z. Chen , G. J. Dong , J. Schmiedmayer , X. J. Zhou

We report a narrowing of the interference pattern obtained in an atomic Ramsey interferometer if the two separated fields have different frequency and their phase difference is controlled. The width of the Ramsey fringes depends inversely…

Quantum Physics · Physics 2013-05-29 D. Seidel , J. G. Muga

We perform atom interferometry using the Zeeman sublevels of a spin-2 Bose-Einstein condensate of $^{87}$Rb. The observed fringes are strongly peaked, and fringe repetition rates higher than the fundamental Ramsey frequency are found in…

Quantum Physics · Physics 2015-06-15 M. Sadgrove , Y. Eto , S. Sekine , H. Suzuki , T. Hirano

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

We present an atom interferometry technique in which the beamsplitter is split into two separate operations. A microwave pulse first creates a spin-state superposition, before optical adiabatic passage spatially separates the arms of that…

Atomic Physics · Physics 2018-08-01 Matt Jaffe , Victoria Xu , Philipp Haslinger , Holger Müller , Paul Hamilton

Ramsey interferometry is a key technique for precision spectroscopy and to probe the coherence of quantum systems. Typically, an interferometer is constructed using two quantum states and involves a time-dependent interaction with two short…

Quantum Physics · Physics 2024-05-17 Chetan Sriram Madasu , Ketan Damji Rathod , Chang Chi Kwong , David Wilkowski

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

Multiple adiabatic/diabatic passages through avoided crossings in the Stark map of cesium Rydberg atoms are employed as beam splitters and recombiners in an atom-interferometric measurement of energy-level splittings. We subject cold cesium…

Atomic Physics · Physics 2017-07-31 Limei Wang , Hao Zhang , Linjie Zhang , Georg Raithel , Jianming Zhao , Suotang Jia

We examine the passage of ultracold two-level atoms through two separated laser fields for the nonresonant case. We show that implications of the atomic quantized motion change dramatically the behavior of the interference fringes compared…

Quantum Physics · Physics 2009-11-13 D. Seidel , J. G. Muga

We theoretically demonstrate the feasibility of producing electron beam splitter using Kapitza-Dirac diffraction on bichromatic standing waves which are created by the fundamental frequency and the third harmonic. The relativistic electron…

Atomic Physics · Physics 2018-09-26 Asma Ebadati , Mohsen Vafaee , Babak Shokri

We describe the operation of a light pulse interferometer using cold 87Rb atoms in reduced gravity. Using a series of two Raman transitions induced by light pulses, we have obtained Ramsey fringes in the low gravity environment achieved…

We investigate an atom interferometer in which large momentum differences between the arms are obtained by using quantum resonances in the atom optics $\delta$-kicked rotor. The interferometer can potentially measure the Talbot time (from…

Quantum Physics · Physics 2019-06-28 Boris Daszuta , Mikkel F. Andersen

Sequences of alternating-sign time-dependent electric field pulses lead to coherent interference effects in Schwinger vacuum pair production, producing a Ramsey interferometer, an all-optical time-domain realization of the multiple-slit…

High Energy Physics - Theory · Physics 2012-05-15 Eric Akkermans , Gerald V. Dunne

A Ramsey-type interferometer is suggested, employing a cold trapped ion and two time-delayed off-resonant femtosecond laser pulses. The laser light couples to the molecular polarization anisotropy, inducing rotational wavepacket dynamics.…

Quantum Physics · Physics 2015-02-20 J. Martin Berglund , Michael Drewsen , Christiane P. Koch

In this paper we present a short overview of atom interferometry based on light pulses. We discuss different implementations and their applications for high precision measurements. We will focus on the determination of the ratio h/m of the…