Alexander V. Kramarenko’s scientific contributions

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Publications (9)


The Stochastic Gravitational-Wave Background Exists Permanently and Has Time-Domain Asymmetry
  • Preprint

July 2022

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1 Read

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Alexander Kramarenko

Analyzing the records of Advanced LIGO and Virgo gravitational observatories, we found a specific time-domain asymmetry inherent only to the signals of their gravitational detectors. Experiments with different periodic signals, Gaussian and non-Gaussian noises, made it possible to conclude that the noise of gravitational detectors is an unusual mixture of signals. We also developed a specialized Pearson correlation analyzer to recognize the gravitational-wave events. It turned out that the LIGO detectors’ output signals include a significant (– 6 dB) component, which has the properties of records of reliably recognized gravitational waves. It allows us to argue that the gravitational background noise is largely due to the processes of merging astronomical objects. Since the specific signal is registered by the detectors continuously, we can consider the sub-kilohertz band gravitational oscillations field as detected. Our analysis method also allows us to estimate the contribution of the gravitational background component to the total signal energy. With its help, it will be possible not only to provide the radio-frequency estimation of the magnitude of gravitational disturbances but also, possibly, to construct a map of the gravitational noise of the sky.


Fig. 5. Time series of Vj values calculated by formula (2) for file H1_filt.wav. The duration of the recording fragment is 24 seconds. In the middle of the graph there is a response from the "officially confirmed" wave, at least three more bursts correspond to the fragments, about which there was a discussion about the correspondence of their form to the gravitational wave pattern.
Figure 8. Hanford Observatory. Processing of the file H1_filt.wav (original H1_GWOSC_16KHZ_R1-1185389792-32.wav). In contrast to the noise signals, the accumulated asymmetry is not equal to zero. The red arrow shows the rise of the plot.
Fig. 9. Livingstone Observatory. Processing of file L1_filt.wav (original file L-L1_GWOSC_16KHZ_R1-1185389792-32.wav). The asymmetry is clearly observed.
Fig. 10. Virgo Observatory. File V1_filt.wav (original V-V1_GWOSC_16KHZ_R1-1185389792-32.wav). Due to unsuppressed hardware interference, the detector does not work well. The signal asymmetry is unquestionable, but it is lower than in the previous illustrations.
Fig. 11. Additive mixture of the components of gravitational waves and GWN in the ratio 3:1. As expected, the characteristic patterns are visually detectable.

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The Stochastic Gravitational-Wave Background Exists Permanently and Has Time-Domain Asymmetry
  • Preprint
  • File available

May 2022

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40 Reads

Analyzing the records of Advanced LIGO and Virgo gravitational observatories, we found a specific time-domain asymmetry, inherent only to the signals of their gravitational detectors. Experiments with different periodic signals, Gaussian and non-Gaussian noises made it possible to conclude that the noise of gravitational detectors is an unusual mixture of signals. The gravitational-wave signals have been detected and recognized using a specialized Pearson correlation analyzer. It turned out that the detector signals include a significant (– 6 dB) component, which has the properties of records of reliably recognized gravitational waves. This allows one to argue that the gravitational noise is largely due to the processes of merging astronomical objects. Since the specific signal is registered by the detectors continuously, the field of gravitational oscillations of the sub-kilohertz band can be considered as detected. A method of analysis has also been developed to estimate the contribution of the gravitational noise component to the total signal energy. With its help it will be possible not only to pass to the radio-frequency estimation of the magnitude of gravitational disturbances but also, possibly, to construct a map of the gravitational noise of the sky.

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Gravitational Noise Is Asymmetric in the Time Domain and Exists Permanently

February 2022

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10 Reads

Analyzing the records of gravitational observatories of the LIGO project we have found a specific asymmetry in the time domain, inherent only to the signals of their gravitational detectors. Its comparison with various periodic signals, Gaussian and non-Gaussian noises made it possible to draw a preliminary conclusion that the noise of gravitational detectors is a unique mixture of signals. We have developed our own system of filtering gravitational signals, which uses only linear time-invariant elements. All processing is performed exclusively in the time domain. Detection and recognition of gravitational wave signals were carried out using a specialized Pearson correlation analyzer. It has been revealed that the detectors’ noises include a significant (– 6 dB) component inherent to the reliably detected gravitational waves. This result allows one to reasonably assume that the gravitational noise is largely due to the merging processes of massive astronomical objects. Since the specific noise signal is registered by detectors continuously, the field of gravitational oscillations of sub-kilohertz range can be considered as detected. A method of analysis has been developed to estimate the contribution of the gravitational noise component to the total signal energy. Its advantage can be considered a low requirement for computing power: signal processing is provided in real-time using any PC. With the help of the proposed method, it will be possible not only to begin the radio-frequency estimation of the magnitude of gravitational disturbances, which follows from the recent publications but also, possibly, to construct a map of the gravitational noise of the sky. The hyperlinks to the data files we have been working with, also as the result files are in the paper. We also can provide the source code of our program upon a reasonable request.


The Connection between Rf Anisotropy of Acoustically Excited NaCl Aqueous Solution and Debye Ionic Vibrational Potential

December 2021

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19 Reads

In this paper, we considered two phenomena in acoustically excited aqueous solutions of a strong electrolyte. These are the well-known Debye ionic vibrational potential (IVP), and radiofrequency anisotropy we discovered earlier , apparently, for the first time. Since both occur due to the accelerated motion of the solution, we have tried to combine them in one simple model. We have established that for a polarized UHF radio wave passed through a NaCl aqueous solution excited by an acoustic pulse the rotation angle of its vector E is proportional to the integral of the square of the observing IVP over time. An equivalent electrical circuit simulating the observed phenomena has been proposed and tested for physical feasibility. Several arguments are given in favour of the fluid-gyroscopic mechanism of RF anisotropy-related effects. We also found out that the IVP is practically independent of the vibrational velocity for frequencies below 10 kHz and it tends to zero at zero frequency. The latter is consistent with the law of conservation of energy but contradicts the incomplete existing theory.


Publisher Correction: A new radio-frequency acoustic method for remote study of liquids

June 2021

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20 Reads


Towards a Theory of Electromagnetic Effects Arising in Acoustically Excited Electrolyte Solutions

June 2021

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11 Reads

The present work is an effort to explain theoretically the physics of some processes we have observed in our previous experiments. They occur under any mechanical excitation in solutions of strong electrolytes. We assume that the occurrence of the low-frequency Debye ionic vibration potential (IVP) and the deviation of the RF polarization vector are conjugated, but only in the sense that the power flux density of some physical process "X" responsible for the rotation of the polarization vector is proportional to the square of the electric potential voltage. While the independence of the RF anisotropy appearance from the applied voltage and from the Debye potential in particular has been proved experimentally. An equivalent electrical circuit that simulates the observed effects within the solution excited by an acoustic wave is proposed and tested for physical feasibility. Special attention is paid to the basic theory of the ionic vibrational potential, namely, its predictions in the low-frequency range, which contradict both experiment and the energy conservation law. Given the futility of describing the "memory" effect as a process of electrical or molecular origin, several arguments are presented in favor of the fluid-gyroscopic mechanism. It was suggested that the rotation of the polarization vector of the RF signal is due to a change in the electric moment of the liquid atoms and/or the nuclear moment of ions having an odd mass number. The applications of the research are also supplemented. The results of new experiments show that the RF anisotropy of the solution is transported by the carrier. Accordingly, it is possible to create a completely contactless unitary sensor of velocity and inhomogeneities of the liquid, moreover, the experimental setup has previously confirmed the affordability of the idea.


A new radio-frequency acoustic method for remote study of liquids

March 2021

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103 Reads

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1 Citation

In the present work, a novel study method of conductive liquids has been proposed. It is based on a discovered phenomenon of radiofrequency anisotropy of electrolyte solution, which arises in response to mechanical excitation of the solution. The phenomenon was observed during the development of a radiofrequency polarimetric contactless cardiograph. The electric field vector rotates after its transition through the pericardial region due to the acceleration changes of blood. Numerous in vitro experiments with monochromatic and impulse acoustic waves always induced the polarization rotation of the RF wave passing through an electrolyte solution. The response obtained from the solutions on acoustic excitation of the Heaviside function form demonstrates the effect of a solution “memory”. The dynamics of this process resembles the spin glasses magnetization. We hypothesized that there was a magnetic moment change within the solution, and the possible reason for it is an appearance of electromagnetic impulse caused by the same acoustic excitation. In a further experiment, we really captured a suspected electrical potential. Given that, we can declare at least three new physical effects never observed before for an electrolyte solution. The study method itself may provide broad options for remote measurement of the electrolyte solution parameters.


FIG. 3. The experimental setup scheme. A shortened transmitting antenna (surrounded on the sides by a radar absorbing case) is on the left while a receiving slot antenna with QAM is on the right. The relative orientation of the antennas polarization is 45°
FIG. 7. Magnetization M of spin glass as a function of time after turning on and off the magnetic field
A New Radio-Frequency Acoustic Method for Remote Study of Liquids

July 2020

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73 Reads

In the present work, a novel conductive liquids method of study has been proposed. It is based on the phenomenon of radiofrequency anisotropy of electrolyte solution discovered by us. It arises in response to mechanical or acoustic excitation of the solution. We have observed the phenomenon during the development of an RF polarimetric contactless cardiograph. The electric field vector of the transmitted 433.82 MHz signal rotated after its transition through the pericardial region. That rotation depends on the change of blood acceleration when passing through the chambers of the heart and large vessels. It has also been revealed that rotation occurs after RF wave passage through the physiological saline (0.9% NaCl) subjected to any mechanical excitation inside it like a jet appearing or soundwave passing. No significant difference was detected experimentally between NaCl and KCl solutions behavior. It means that the mechanism of hydrodynamic separation of ions is apparently not suitable to explain the phenomenon. The response we have registered resembles the magnetization process of spin glasses. From the nature of the observed response, we have concluded that a fundamentally new physical effect is discovered. It may provide wide opportunities for remote measurement of the electrolyte solution parameters with polarized radio-frequency signals.


Figure 7: A system response on the Heaviside function signal (upper beam) is shown on the left. Recording duration is 2.5 s. The equipment bandwidth starts at zero frequency. It is easy to observe that after a rapid, momentary PVS rotation because of the acoustic wave propagation, the further post-impulse rotation continues in the same direction. On the right is a 5 s fragment of the record that shows an unsuccessful attempt to interfere to post-impulse PVS rotation process by turning on (briefly) an additional more powerful transmitter. Interference is visible on the lower beam of the oscilloscope
Figure 8: Magnetization M of spin glass as a function of time after turning on and off the magnetic field
A New Radio-Frequency Acoustic Method for Remote Study of Liquids

March 2020

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37 Reads

In the present work a new method of study of liquids has been proposed. It is based on phenomenon of radio frequency anisotropy of electrolyte solution discovered by us. It arises because of mechanical or acoustic excitation of the solution. We were observing the phenomenon during the development process of RF polarimetric contactless cardiograhpy. The electric field vector of transmitted 433.82 MHz signal becomes rotated after its transition through the pericardial region. That rotation depends on change of blood acceleration when passing through the chambers of the heart and large vessels. It has also been revealed that rotation occurs after RF wave passage through the physiological saline (0.9% NaCl) subjected to any mechanical excitation inside it like a jet appearing or soundwave passing. No significant difference was detected experimentally between NaCl and KCl solutions behaviour. It means that the mechanism of hydrodynamic separation of ions is apparently not suitable to explain the phenomenon. The response we have registered most likely resembles the magnetization process of spin glasses. From the nature of the response observed we have concluded that a fundamentally new physical effect is discovered. It may provide wide opportunities for remote measurement of the electrolyte solutions parameters using polarized radio-frequency signals.