High Sensitive DC SQUID Based Position Detectors for Application in Gravitational Experiments at the Drop Tower Bremen

Vodel, W.; Dittus, Hansjörg; Nietzsche, Sándor; Koch, H.; Glyscinski, J.V. Zameck; Neubert, R.; Lochmann, Stephan; Mehls, C.; Lockowandt, D.

doi:10.1007/3-540-40988-2_12

Cited by 11 publications

(5 citation statements)

References 8 publications

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“…Yet, the mere capability of the setup to probe deviations from the ISL to unprecedentedly shorter distances offers new possibilities to use it to probe other gravity-related phenomena such dark matter and gravitational waves. In fact, in contrast to all the various ways SQUIDs have so far been proposed in the literature to test gravity [42,43,[47][48][49][50][51], our setup offers a much more compact design and much more economy. Now, while detecting gravitational waves using our setup is probably our of reach as gravitational wavelengths are of the order of thousands of kilometers, we believe that it would be possible to adapt the key principle behind our present proposal to achieve an accumulated effect in order to achieve such a detection.…”

Section: Discussionmentioning

confidence: 99%

A simple superconductor quantum interference device for testing gravity

Hammad,

Landry

2020

Preprint

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A simple tabletop setup based on a superconducting quantum interference device is proposed for testing the gravitational interaction. A D-shaped superconducting loop has the straight segment immersed inside a massive sphere while the half-circle segment is wrapped around the sphere. The superconducting condensate within the straight arm of the loop thus bathes inside a gravitational simple harmonic oscillator potential while the condensate in the half-circle arm bathes in the constant gravitational potential around the sphere. The resulting phase difference at the Josephson junctions on both sides of the straight arm induces a sinusoidal electric current that has a frequency determined by the precise gravitational potential due to the massive sphere.

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Section: Discussionmentioning

confidence: 99%

A simple superconductor quantum interference device for testing gravity

Hammad,

Landry

2020

Preprint

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“…This point had already been distinguished by Newton since he pointed out that the universality of free fall implies that m (i) /m (p) is a constant for all bodies. This premise has been subjected to many experimental tests, from Galileo [2] to the sophisticated experiments of our time [59][60][61][62]. In general relativity the universality of free fall is a fundamental element in the formulation of the theory in purely geometrical terms, it appears in WEP [63].…”

Section: Metric Theories Of Gravity and Quantum Interferencementioning

confidence: 99%

Test of some fundamental principles in physics via quantum interference with neutrons and photons

Camacho¹,

Camacho-Galván²

2007

Rep. Prog. Phys.

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The limitations and possibilities that the concept of quantum interference offers as a tool for testing fundamental physics are explored here. The use of neutron interference as an instrument to confront against measurement readouts some of the principles behind metric theories of gravity will be analyzed, as well as some discrepancies between theory and experiment. The main restrictions that this model embodies for the study of some of the features of the structure of space-time will be explicitly pointed out. For instance, the conditions imposed by the necessary use of the semiclassical approximation. Additionally, the role that photon interference could play as an element in this context is also considered. In this realm we explore the differences between first-order and secondorder coherence experiments, and underline the fact that the Hanbury-Brown-Twiss effect could open up some interesting experimental possibilities in the analysis of the structure of space-time.The void, in connection with the description of wave phenomena, implicit in the principles of metric theories is analyzed. The conceptual difficulties, that this void entails, are commented.

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“…For fundamental physics, SQUIDs are mainly used to measure positions as well as linear and angular accelerations. For these measurements, any test mass movement induces an inductance signal coupled to the SQUID [129].…”

Section: New High-precision Experimental Techniquesmentioning

confidence: 99%

Fundamental Physics in Space: A guide to present projects

Lämmerzahl

Dittus

2002

Ann. Phys.

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A review is presented about most of the current Fundamental Physics (FP) projects in space. After illustrating of what is meant by FP and which are its objectives, reasons are expatiated of why it is of great advantage to do FP in space. Then we give extensive introductions into all present and future FP projects in space. This consists of an explanation of the various scientific objectives, a description of the scientific payload and the used technologies, and an outline of the planned mission scenarios. Furthermore, we give a guide to further information (review papers, web-pages) about the various projects.

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High Sensitive DC SQUID Based Position Detectors for Application in Gravitational Experiments at the Drop Tower Bremen

Cited by 11 publications

References 8 publications

A simple superconductor quantum interference device for testing gravity

A simple superconductor quantum interference device for testing gravity

Test of some fundamental principles in physics via quantum interference with neutrons and photons

Fundamental Physics in Space: A guide to present projects

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