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Physics, Volume 2, Issue 1

March 2020 - 7 articles

Cover Story: One of the most original predictions of general relativity is the coupling between gravity and any physical entity described by a stress–energy tensor. In this picture, even quantum fields should warp space–time and be affected by its curvature. Nonetheless, the interaction between quantum fields and gravity is still debated and the gravitational interaction of the quantum vacuum energy has not yet been observed. Archimedes is an experiment designed to measure the weight of the vacuum, i.e., the coupling of vacuum energy with gravity. Using a specifically designed high-precision cryogenic balance, we will measure the weight of a multi-layered superconductive crystal. In such a system, the Casimir energy of the electromagnetic vacuum can be modulated, triggering the superconductive phase transition.View this paper.
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Articles (7)

  • Article
  • Open Access
9 Citations
7,693 Views
15 Pages

7 February 2020

We theoretically study the dynamical Casimir effect (DCE), i.e., parametric amplification of a quantum vacuum, in an optomechanical cavity interacting with a photonic crystal, which is considered to be an ideal system to study the microscopic dissipa...

  • Article
  • Open Access
3,901 Views
10 Pages

19 January 2020

Herein we demonstrate the dramatic effect of non-locality on the plasmons which contribute to the Casimir forces, with a graphene sandwich as a case study. The simplicity of this system allowed us to trace each contribution independently, as we obser...

  • Article
  • Open Access
17 Citations
5,985 Views
13 Pages

Progress in a Vacuum Weight Search Experiment

  • Saverio Avino,
  • Enrico Calloni,
  • Sergio Caprara,
  • Martina De Laurentis,
  • Rosario De Rosa,
  • Tristano Di Girolamo,
  • Luciano Errico,
  • Gianluca Gagliardi,
  • Marco Grilli and
  • Valentina Mangano
  • + 15 authors

25 December 2019

We present the status of the art of the Archimedes experiment, devoted to measuring the debated interaction of quantum vacuum fluctuations and gravity. The method is essentially the weighing of the transition energy of a layered superconductor where...

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Physics - ISSN 2624-8174