arXiv subjects

V. V. Demjanov

Publications and source records attributed to V. V. Demjanov.

3 recordsLinked to original sources

arXiv2011

Physical interpretation of the fringe shift measured on Michelson interferometer in optical media

I have found experimentally that in vacuum (refractive index $n$ = 1.) the shift of interference fringe in Michelson interferometer is absent because of the absence of particles on the light path. The shift of interference fringe appears only at a certain concentration of particles in the luminiferous medium. The increase of the remnant air pressure in the optical tubes of the interferometer (of the length 6 m in each arm) from 1 mm Hg to 1500 mm Hg reveals first indications of the interference fringe shift (about 0.015 of its width) only at the air pressure 300 mm Hg ($n$ = 1.00014...). The increase of the air pressure in optical tubes up to 760 mm Hg ($n$ = 1.0003...) adds twice the amplitude of the harmonic shift of the interference fringe giving ~0.03, and at the pressure 1500 mm Hg the harmonic fringe shift ~0.06 became conspicuous. The S-shaped with the change of sign dependence of the fringe shift on the index of refraction $n$ was found. Thus the estimation of the horizontal projection of the velocity of the Earth relative to aether is obtained. At the latitude of Obninsk this velocity varies depending on the time of day and night within 140 - 480 km/s. The forth version of the report is complemented with the account of the harmful effect on registering the shift $ΔX_m$ of the interference fringe of the improperly installed in turning-points of the zigzag light path glass mirrors. The nullifying of the shift in air interferometers may occur because of opposite signs of contributions of the air and glass optical media through the discovered by me law $ΔX_m \sim lΔε(1-Δε)$. This may be the cause of obtaining negative results in majority of Michelson-type experiments known to date.

physics.gen-ph↗

arXiv2011

What and how the Michelson interferometer measures

Proposed by Maxwell in 1879 detector of aether seems, at a superficial glance, a simple device. For example, Michelson in 1881 thought that he built an instrument that (when you turn it in the horizontal plane) will measure in vacuum (refractive index n=1) the harmonic shift of the interference fringe. In reality the case is much more involved. Not at once it was understood (the misunderstanding lasted about 90 years) that the shift of interference fringe occurs only when the carriers of light contain particles, i.e. have n>1. In 1968-1975 I have demonstrated experimentally that during the pumping of the gas from the zones where the light propagates, i.e. with decreasing the number of particles of the light's carrier, along with the reduction of noise disturbances always necessarily vanishes the harmonic shift of the interference fringe. As soon as the correlation of the observability of the fringe shift with the concentration of particles in the light's carrier has been taken into account, I was able to reliably measure the speed of absolute motion of the Earth as a few hundred km/s. In the sixth version I corrected the slip in formula (21). There is suggested for experimenters the advice how to diminish below the measurable level of the sought-for signal the harmful influence of the noise and false interferences, and for interpreters of measurements of non-zero fringe shift the derivation is given of a relativistically invariant formula of the aether wind speed that agrees with the experiments in optical media with 1<n<1.8. In the publication Phys.Lett.A 374 (2010) 1110 I reported about measuring the horizontal projection of absolute velocity of the Earth at the latitude of Obninsk as 140-480 km/s depending on the time of day and night. This experimental result became possible only owing to that I was able to overcome the above mentioned methodical and interpretational artifacts.

physics.gen-ph↗

arXiv2010

Michelson interferometer operating at effects of first order with respect to v/c

In the first version of this paper (arXiv: 1003.2899v1, 15.03.2010) there is described first, traditional method of measuring the non-zero shift of interference fringe in the Michelson interferometer, operating on the effects of second order with respect to v/c, and are revealed hidden causes of the failure to measure the shift of interference fringe in the period from 1881 till 1960. It is shown that at the latitude of Obninsk within a 24-hour observation period the horizontal projection of aether wind velocity varies from 140 km/s to 480 km/s. The second version of this paper (arXiv: 1003.2899v2, 15.04.2010) is supplemented with a second method of finding the velocity of the aether wind -- through measuring the largest seasonal decrease in the ratio of the summer shift of the interference fringe to the winter one (equaled ~12%). It gave the same interval of values of the projections of the aether wind velocity as the first method. More than hundred years there persists a belief that Michelson-type interferometer can not be adjusted such as to detect effects of the first order with respect to v/c. Below I show that it is possible, and more successfully than on the interferometer of the second order. In contrast to the traditional approach, in the interferometer of the first order the light after splitting on a semi-transparent plate propagates in both arms to the reflecting mirrors in one optical medium, and returns after reflection from the mirrors through another optical medium. The shift of the interference fringe was found to be proportional to the difference of dielectric permittivities of these media. The horizontal projection of the Earth's velocity relative to luminiferous aether measured by the first order interferometer agrees with that found by the first two methods.

quant-ph↗