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The response of laser interferometers to gravitational waves has been calculated in a number of different ways, particularly in the transverse-traceless and the local Lorentz gauges. At first sight, it would appear that these calculations…

General Relativity and Quantum Cosmology · Physics 2013-05-29 Malik Rakhmanov

Gravitational waves imprint apparent Doppler shifts on the frequency of photons propagating between an emitter and detector of light. This forms the basis of a method to detect gravitational waves using Doppler velocimetry between pairs of…

Atomic Physics · Physics 2015-06-25 Amar C. Vutha

The intensity ratio between two major Raman bands in graphene is one of the most important information for physics of graphene and has been believed to represent various intrinsic properties of graphene without critical assessment of…

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

We report on the implementation of ultracold atoms as a source in a state of the art atom gravimeter. We perform gravity measurements with 10 nm/s 2 statistical uncertainties in a so-far unexplored temperature range for such a high accuracy…

Atomic Physics · Physics 2018-12-26 R Karcher , A Imanaliev , S. Merlet , Franck Pereira dos Santos

We describe how gravitational lensing of fast radio bursts (FRBs) is affected by a plasma screen in the vicinity of the lens or somewhere between the source and the observer. Wave passage through a turbulent medium affects gravitational…

High Energy Astrophysical Phenomena · Physics 2023-02-01 Pawan Kumar , Paz Beniamini

High rate sampling detectors measuring the potential difference between the main body and boom antennas of interplanetary spacecraft have been shown to be efficient means to measure the voltage pulses induced by nano dust impacts on the…

Earth and Planetary Astrophysics · Physics 2012-05-10 Filippo Pantellini , Soraya Belheouane , Nicole Meyer-Vernet , Arnaud Zaslavsky

There now exists in the literature two different expressions for the phase shift of a matter-wave interferometer caused by the passage of a gravitation wave. The first, a commonly accepted expression that was first derived in the 1970s, is…

General Relativity and Quantum Cosmology · Physics 2007-05-23 A. D. Speliotopoulos , R. Y. Chiao

We present a new scheme for measuring the differential phase in dual atom interferometers. The magnetic field is modulated in one interferometer, and the differential phase can be extracted without measuring the amplitude of the magnetic…

Atomic Physics · Physics 2016-06-22 Yu-Ping Wang , Jia-Qi Zhong , Xi Chen , Run-Bing Li , Da-Wei Li , Lei Zhu , Hong-Wei Song , Jin Wang , Ming-Sheng Zhan

We present a local measurement of gravity combining Bloch oscillations and atom interferometry. With a falling distance of 0.8 mm, we achieve a sensitivity of 2x10-7 g with an integration time of 300 s. No bias associated with the Bloch…

Atomic Physics · Physics 2015-05-30 Renée Charrière , Malo Cadoret , Nassim Zahzam , Yannick Bidel , Alexandre Bresson

The measurement precision of the static atomic gravimetry is limited by white Gaussian noise in short term, which costs previous works an inevitable integration to reach the precision demanded. Here, we propose a statistical model based on…

Atomic Physics · Physics 2022-09-27 Bo-Nan Jiang

We investigate general properties of optical interferometry in stationary spacetimes and apply the obtained results focusing on quantum-optical experiments in near-Earth environments. We provide a rigorous expression for the…

Quantum Physics · Physics 2015-03-30 Aharon Brodutch , Alexei Gilchrist , Thomas Guff , Alexander R. H. Smith , Daniel R. Terno

Precision absolute gravity measurements are growing in importance, especially in the context of the new definition of the kilogram. For the case of free-fall absolute gravimeters with a Michelson-type interferometer tracking the position of…

Optics · Physics 2016-02-23 H. Baumann , F. Pythoud , D. Blas , S. Sibiryakov , A. Eichenberger , E. E. Klingele

Atom matterwave interferometry requires mirror and beamsplitter pulses that are robust to inhomogeneities in field intensity, magnetic environment, atom velocity and Zeeman sub-state. Pulse shapes determined using quantum control methods…

Quantum Physics · Physics 2018-08-29 Jack Saywell , Ilya Kuprov , David Goodwin , Max Carey , Tim Freegarde

Atomic clocks can measure the gravitational redshift predicted by general relativity with great accuracy and for height differences as little as 1 cm. All existing experiments, however, involve the comparison of two independent clocks at…

Atomic Physics · Physics 2021-10-04 Albert Roura , Christian Schubert , Dennis Schlippert , Ernst M. Rasel

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…

A gravitational wave pulse, while passing through spacetime, brings about a change in the relative separation between free particles. This `memory effect' serves as one of the signatures of gravitational waves. In this paper, we consider…

General Relativity and Quantum Cosmology · Physics 2023-07-13 Sucheta Datta , Sarbari Guha , Deeshani Mitra

The gravitational lensing of gravitational waves might cause beat patterns detectable by interferometers. The feature of this kind of signal is the existence of the beat pattern in the early inspiral phase, followed by a seemingly randomly…

General Relativity and Quantum Cosmology · Physics 2020-03-10 Shaoqi Hou , Xi-Long Fan , Kai Liao , Zong-Hong Zhu

We consider some implications of the mass defect on the frequency of atomic transitions. We have found that some well-known frequency shifts (gravitational shift and motion-induced shifts such as: quadratic Doppler and micromotion shifts)…

Atomic Physics · Physics 2018-02-08 V. I. Yudin , A. V. Taichenachev

Refined constraints on chameleon theories are calculated for atom-interferometry experiments, using a numerical approach consisting in solving for a four-region model the static and spherically symmetric Klein-Gordon equation for the…

Cosmology and Nongalactic Astrophysics · Physics 2016-06-01 Sandrine Schlogel , Sebastien Clesse , Andre Fuzfa