High-sensitivity crossed-resonator laser apparatus for improved tests of Lorentz invariance and of space-time fluctuations

2016 ◽  
Vol 93 (2) ◽  
Author(s):  
Q. Chen ◽  
E. Magoulakis ◽  
S. Schiller
Keyword(s):  
Lorentz Invariance ◽  
High Sensitivity ◽  
Space Time ◽  
Laser Apparatus

Deformed space–time transformations in Mercury

2017 ◽  
Vol 31 (23) ◽  
pp. 1750168 ◽  
Author(s):  
F. Cardone ◽  
G. Albertini ◽  
D. Bassani ◽  
G. Cherubini ◽  
E. Guerriero ◽  
...  
Keyword(s):  
Neutron Emission ◽  
Lorentz Invariance ◽  
Analytical Techniques ◽  
Solid Material ◽  
Transformation Product ◽  
Atomic Weight ◽  
Space Time ◽  
Invariance Violation ◽  
Icp Ms ◽  
Aisi 304 Steel

A mole of Mercury was suitably treated by ultrasound in order to generate in it the same conditions of local Lorentz invariance violation that were generated in a sonicated cylindrical bar of AISI 304 steel and that are the cause of neutron emission during the sonication. After 3 min, part of the mercury turned into a solid material which turned out to contain isotopes having a different mass (higher and lower) with respect to the isotopes already present in the initial material (mercury). These transformations in the atomic weight without gamma production above the background are brought about during Deformed Space–Time reactions. We present the results of the analyses performed on samples taken from the transformation product. The analyses have been done in two groups, the first one using five different analytical techniques: ICP-OES, XRF, ESEM-EDS, ICP-MS, INAA. In the second group of analyses, we used only two techniques: INAA and ICP-MS. The second group of analyses confirmed the occurring of the transformations in mercury.

scholarly journals M-THEORY DUALITY AND BPS-EXTENDED SUPERGRAVITY

2001 ◽  
Vol 16 (05) ◽  
pp. 1002-1011 ◽  
Author(s):  
BERNARD DE WIT
Keyword(s):  
Lorentz Invariance ◽  
Space Time ◽  
Duality Group ◽  
Toroidal Compactifications ◽  
Maximal Supergravity ◽  
Bps States ◽  
M Theory

We discuss toroidal compactifications of maximal supergravity coupled to an extended configuration of BPS states which transform consistently under the U-duality group. Under certain conditions this leads to theories that live in more than eleven space-time dimensions, with maximal supersymmetry but only partial Lorentz invariance. We demonstrate certain features of this construction for the case of nine-dimensional N=2 supergravity.

Neutralization of radionuclides

2020 ◽  
pp. 2130001
Author(s):  
Gianni Albertini ◽  
Domenico Bassani ◽  
Fabio Cardone ◽  
Giovanni Cherubini ◽  
Ettore Guerriero ◽  
...  
Keyword(s):  
Lorentz Invariance ◽  
Complex Molecule ◽  
Ultrasound Irradiation ◽  
Anomalous Behavior ◽  
Local Deformation ◽  
Space Time ◽  
Radioactive Material ◽  
Distilled Water ◽  
X Rays ◽  
Before And After

Three cases are reviewed of radioactive material with anomalous decay after ultrasound irradiation. In the pure element thorium-228 in distilled water, the radioactivity decreased faster after cavitation than the natural decay. The more complex molecule of Nickel Nitrate, made of radioactive nickel-63, in solution of nitric acid and distilled water was investigated before and after ultrasound irradiation. The X-rays produced by Bremsstrahlung of the electrons from the beta decay of Ni-63 were recorded and a 13% decrease of intensity was measured after 100 s of sonication. A decrease of nickel and an increase of other elements was detected by mass spectrometry in the sonicated sample. The Cobalt-57 decay was investigated by detecting the gamma and X-ray intensity from the Iron-57 resulting after its beta emission. In this third case too, an anomalous decay was observed after sonication. These three cases of anomalous behavior can be explained at the light of the Deformed Space–Time theory. It assumes that a suitable sudden variation of energy density can induce a local deformation of space–time, thus violating the Local Lorentz Invariance. This variation can be created by the ultrasounds in the matter, thus, allowing reactions that cannot occur in a flat (Minkowskian) space–time. The “neutralization” of a radionuclide occurs when it undergoes a DST transformation changing the radionuclide into non-radioactive nuclides.

Modification of the dynamic equation and tunneling radiation of fermions with arbitrary spin in Kerr-Newman-Kasuya black hole space-time

2020 ◽  
Vol 35 (20) ◽  
pp. 2050168
Author(s):  
Xia Tan ◽  
Yuzhen Liu ◽  
Zhie Liu ◽  
Bei Sha ◽  
Jie Zhang ◽  
...  
Keyword(s):  
Black Hole ◽  
Dynamic Equation ◽  
Lorentz Invariance ◽  
High Energy ◽  
Gravitational Theory ◽  
Arbitrary Spin ◽  
Space Time ◽  
Hawking Temperature ◽  
Tunneling Radiation ◽  
Invariance Violation

According to the Lorentz Invariance Violation originated from the quantum gravitational theory and the string theory, the Rarita-Schwinger equation of arbitrary spin fermions are exactly modified in the high energy case. Then we restudy the dynamic equation of fermions with arbitrary spin in charged Kerr-Newman-Kasuya (KNK) black hole space-time. Moreover, the tunneling radiation characteristics of fermions are studied according to the modified dynamic equation. Therefore, some new expressions for physical quantities such as tunneling rate, surface gravitation, Hawking temperature and entropy of the black hole are corrected. As a result, we calculate that the surface gravitation at the event horizon of the KNK black hole is a constant, and find that the Hawking temperature will increase, but the entropy will decrease with the increasing of correction parameter.

Nuclear metamorphosis in mercury

2016 ◽  
Vol 30 (01) ◽  
pp. 1550239
Author(s):  
F. Cardone ◽  
G. Albertini ◽  
D. Bassani ◽  
G. Cherubini ◽  
E. Guerriero ◽  
...  
Keyword(s):  
Solid State ◽  
Gamma Radiation ◽  
Neutron Emission ◽  
Lorentz Invariance ◽  
Atomic Weight ◽  
Space Time ◽  
Atomic Mass ◽  
Aisi 304 ◽  
Aisi 304 Steel ◽  
Local Lorentz Invariance

The conditions of local Lorentz invariance (LLI) breakdown, obtained during neutron emission from a sonicated cylindrical bar of AISI 304 steel, were reproduced in a system made of a mole of mercury. After 3 min, a part of the liquid transformed into solid state material, in which isotopes were found with both higher and lower atomic mass with respect to the starting material. Changes in the atomic weight without production of gamma radiation and radionuclides are made possible by deformed space–time reactions.

scholarly journals Homogeneously Modified Special relativity (HMSR)

2019 ◽  
Vol 79 (9) ◽  
Author(s):  
Marco Danilo Claudio Torri ◽  
Vito Antonelli ◽  
Lino Miramonti
Keyword(s):  
Lorentz Invariance ◽  
Space Time ◽  
Lorentz Transformations ◽  
Interacting Particles ◽  
Standard Model Extension ◽  
Invariance Violation ◽  
Space Time Structure ◽  
Model Extension ◽  
Physical Effects ◽  
Invariance Preserving

Abstract This work explores a Standard Model extension possibility, that violates Lorentz invariance, preserving the space-time isotropy and homogeneity. In this sense HMSR represents an attempt to introduce an isotropic Lorentz Invariance Violation in the elementary particle SM. The theory is constructed starting from a modified kinematics, that takes into account supposed quantum effects due to interaction with the space-time background. The space-time structure itself is modified, resulting in a pseudo-Finsler manifold. The SM extension here provided is inspired by the effective fields theories, but it preserves covariance, with respect to newly introduced modified Lorentz transformations. Geometry perturbations are not considered as universal, but particle species dependent. Non universal character of the amended Lorentz transformations allows to obtain visible physical effects, detectable in experiments by comparing different perturbations related to different interacting particles species.

scholarly journals Can Bohmian mechanics be made relativistic?

2014 ◽  
Vol 470 (2162) ◽  
pp. 20130699 ◽  
Author(s):  
Detlef Dürr ◽  
Sheldon Goldstein ◽  
Travis Norsen ◽  
Ward Struyve ◽  
Nino Zanghì
Keyword(s):  
Wave Function ◽  
Lorentz Invariance ◽  
Bohmian Mechanics ◽  
Space Time ◽  
Time Structure ◽  
Absolute Space ◽  
Space Time Structure ◽  
Violation Of Lorentz Invariance ◽  
Extra Structure

In relativistic space–time, Bohmian theories can be formulated by introducing a privileged foliation of space–time. The introduction of such a foliation—as extra absolute space–time structure—would seem to imply a clear violation of Lorentz invariance, and thus a conflict with fundamental relativity. Here, we consider the possibility that, instead of positing it as extra structure, the required foliation could be covariantly determined by the wave function. We argue that this allows for the formulation of Bohmian theories that seem to qualify as fundamentally Lorentz invariant. We conclude with some discussion of whether or not they might also qualify as fundamentally relativistic.

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