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Showing 2020 · gr-qcShow all
3 papers · 2 filters
gr-qc2020
What can we learn from the conformal noninvariance of the Klein-Gordon equation?
F. Hammad, P. Sadeghi, N. Fleury +1
It is well known that the Klein-Gordon equation in curved spacetime is conformally noninvariant, both with and without a mass term. We show that such a noninvariance provides nontr…
gr-qc2020★ 13 cited
A fresh look at the influence of gravity on the quantum Hall effect
F. Hammad, A. Landry, K. Mathieu
We study the quantum Hall effect inside a gravitational field. First, we review the influence of the gravitational field of the Earth on the quantum Hall effect. Taking the gravita…
gr-qc2020★ 9 cited
A simple superconductor quantum interference device for testing gravity
Fayçal Hammad, Alexandre Landry
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 straig…