Gravitational Wave Detection with Atom Interferometry

Dimopoulos, Savas; Graham, Peter W.; Hogan, Jason; Kasevich, Mark A.; Rajendran, Surjeet

doi:10.2172/922600

Cited by 24 publications

(27 citation statements)

References 20 publications

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“…[65], the nanotube reaches μ ¼ 14.0 (assuming a fringe visibility of 0.8 and coherence time of 100 oscillator periods). By this measure, the superposition is more macroscopic than already achieved in state-of-the-art near-field molecular interferometry experiments [66] (μ ¼ 12.1) or in a micromembrane near the ground state [17] (μ ¼ 11.5), and it is comparable to other proposals, including a satellite-based atom interferometer [67] (μ ¼ 14.5) or a 10 5 amu Talbot-Lau interferometer [68] (μ ¼ 14.5). However, because of its low mass, a nanotube has a lower measure than proposals for superpositions of a micromirror [9] (μ ¼ 19.0) or nanosphere interference [10] (μ ¼ 20.5) [69].…”

Section: Nanomechanical Interferometrysupporting

confidence: 75%

Displacemon Electromechanics: How to Detect Quantum Interference in a Nanomechanical Resonator

et al. 2018

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We introduce the "displacemon" electromechanical architecture that comprises a vibrating nanobeam, e.g., a carbon nanotube, flux coupled to a superconducting qubit. This platform can achieve strong and even ultrastrong coupling, enabling a variety of quantum protocols. We use this system to describe a protocol for generating and measuring quantum interference between trajectories of a nanomechanical resonator. The scheme uses a sequence of qubit manipulations and measurements to cool the resonator, to apply two effective diffraction gratings, and then to measure the resulting interference pattern. We demonstrate the feasibility of generating a spatially distinct quantum superposition state of motion containing more than 10 6 nucleons using a vibrating nanotube acting as a junction in this new superconducting qubit configuration.

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Section: Nanomechanical Interferometrysupporting

confidence: 75%

Displacemon Electromechanics: How to Detect Quantum Interference in a Nanomechanical Resonator

et al. 2018

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“…Obviously we will describe the most probable options based on the currently known technologies. For this reason we will neglect (although they may be scientifically interesting) some new solutions like atom-interferometers [80] and also QND techniques [81] which hold a high potential for lowering quantum noise but still need to be experimentally proven.…”

Section: Scenarios For the Third Generation Gw Observatoriesmentioning

confidence: 99%

Toward a third generation of gravitational wave observatories

Punturo

Lück

2010

Gen Relativ Gravit

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Large gravitational wave interferometric detectors, like Virgo and LIGO, demonstrated the capability to reach their design sensitivity, but to transform these machines into an effective observational instrument for gravitational wave astronomy a large improvement in sensitivity is required. Advanced detectors in the near future and third generation observatories in slightly more than one decade will open the possibility to perform gravitational wave astronomical observations from the Earth. An overview of the technological progress needed to realize a third generation observatory, like the Einstein Telescope (ET), and a possible evolution scenario are discussed in this paper.

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“…In this article we expand on a previous article [4], giving the details of our proposal for an Atomic Gravitational wave Interferometric Sensor (AGIS). We develop proposals for two experiments, one terrestrial, the other satellitebased.…”

mentioning

confidence: 99%

Atomic gravitational wave interferometric sensor

et al. 2008

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We propose two distinct atom interferometer gravitational wave detectors, one terrestrial and another satellite-based, utilizing the core technology of the Stanford 10 m atom interferometer presently under construction. Each configuration compares two widely separated atom interferometers run using common lasers. The signal scales with the distance between the interferometers, which can be large since only the light travels over this distance, not the atoms. The terrestrial experiment with two ∼ 10 m atom interferometers separated by a ∼ 1 km baseline can operate with strain sensitivity ∼ 10 −19 √ Hz in the 1 Hz -10 Hz band, inaccessible to LIGO, and can detect gravitational waves from solar mass binaries out to megaparsec distances. The satellite experiment with two atom interferometers separated by a ∼ 1000 km baseline can probe the same frequency spectrum as LISA with comparable strain sensitivity ∼ 10 −20 √ Hz . The use of ballistic atoms (instead of mirrors) as inertial test masses improves systematics coming from vibrations, acceleration noise, and significantly reduces spacecraft control requirements. We analyze the backgrounds in this configuration and discuss methods for controlling them to the required levels.

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Gravitational Wave Detection with Atom Interferometry

Cited by 24 publications

References 20 publications

Displacemon Electromechanics: How to Detect Quantum Interference in a Nanomechanical Resonator

Displacemon Electromechanics: How to Detect Quantum Interference in a Nanomechanical Resonator

Toward a third generation of gravitational wave observatories

Atomic gravitational wave interferometric sensor

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