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Журнал прикладной спектроскопии

Управление логическими операциями с изображениями в аккумулированной эхо-голографии внешними пространственно-неоднородными электрическими полями

Guzel I. Garnaeva, L. A. Nefedev, Э. И. Низамова

Published May 29, 2021• 0 citations
OpenAlex

Abstract

Ihe realization of logical operations for images using an accumulated echo hologram in the presence of external spatially inhomogeneous electric fields is considered. It is shown that the photon echo locking effect allows controlling the type of logical operations (from uniting the sets to their symmetric difference and superposition) by varying the values of gradients of external spatially inhomogeneous electric fields.

Related papers

Controlling logical operations with images in accumulated echo holography using the effects of information locking and erasing

Guzel I. Garnaeva, Leonid A. Nefediev, Э. И. Низамова

Abstract The possibility of implementing logical operations with images using the accumulated echo hologram in the presence of external spatially inhomogeneous electric fields is considered. It is shown that the photon echo locking effect makes it possible to control the execution of logical operations (from the union of sets to the symmetric difference and their superposition), as well to control their form by varying the values of the gradients of external spatially inhomogeneous electric fields and the phase difference between pairs of pulses.

Quantum Electronics•May 19, 2021•0 citations

Control of Logical Operations with Images in the Accumulated Echo-Holography by External Spatially Inhomogeneous Electric Fields

Guzel I. Garnaeva, Leonid A. Nefediev, Э. И. Низамова

Journal of Applied Spectroscopy•May 1, 2021•0 citations

Phase memory of the three-level system in the presence of external spatially inhomogeneous electric fields

Э. И. Низамова, Leonid A. Nefediev, G.A. Gilmanova

The increasing interest in the study of the interaction of several resonant fields with multilevel quantum systems is due to a wide range of possible applications of various effects observed in the multi-frequency excitation of quantum objects. Among them, we can note color echo holography, information compression in three-level environments, copying of quantum information, and multi-level quantum gates that perform logical operations. In addition, the recording and reproduction of echo holograms in multi-level systems leads to the possibility, along with logical operations, to perform a change in the real-time scale and the sequence of events in the echo-hologram response, the data on which were embedded into the temporal structure of the object laser pulse. The formation of optical transient processes in multilevel systems occurs when the short laser pulses separated in time and resonant of different frequency transitions at the substance have an effect on the system, so that their interaction with each other becomes possible only through the medium and only if the medium has a sufficiently long phase memory. In this situation, each laser pulse transmits information about its wave characteristics to the medium, and this information is retained here until the arrival of the next laser pulses. The formation of optical transient processes in a multilevel system in a solid depends essentially on the degree of correlation of the inhomogeneous broadening on different frequency transitions and different time intervals, in connection with the possible destruction of the reversible phase memory of the system due to a partial mutual fixation energies of transitions. The influence of external spatially inhomogeneous electric fields on the resonant medium can lead to an additional artificially created inhomogeneous broadening. In this case, it is possible to control the phase memory of the system by changing the parameters of external spatially inhomogeneous electric fields, and the most pronounced effect on phase memory is the case of laser excitation of narrow frequency regions of inhomogeneously broadened lines of the resonance transitions. Moreover, the artificially created inhomogeneous broadening by external spatially inhomogeneous electric fields due to the Stark effect can be comparable with the spread of frequencies due to a partial mutual fixation of the transition energies, which leads to a partial restoration of the coherence of the multilevel system. This effect can lead to an increase in the intensity of the response of the stimulated photon echo (SPE) in the three-level system, which is the opposite effect of photon echo locking.

•Mar 1, 2018•0 citations

Двухчастотная запись информации при наличии внешних пространственно неоднородных электрических полей

Guzel I. Garnaeva, L. A. Nefedev, É. I. Khakimzyanova +3 more

The recording of information in a three-level system in the presence of external spatially inhomogeneous electric fields and information encoding in the first two-frequency object pulse investigated. It is shown that in the case of system equidistantnost is not equal one changes the scale of real-time of SFE response. In imposing a spatially non-uniform electric field between the first and second pulses, and after the third pulse, the effect of SFE response locking observed, the effectiveness of which depends on the magnitude of the field gradient.

Международный научно-исследовательский журнал•Jan 1, 2013•0 citations

ОПЕРАЦИЯ КОНЪЮНКЦИИ ДЛЯ СИГНАЛОВ В ОПТИЧЕСКОЙ ЭХО-ГОЛОГРАФИИ

L. A. Nefedev, Э. И. Низамова, Guzel I. Garnaeva

The implementation of logical operations on signals using stimulated echo-holography in the case when it is excited using an object laser pulse carrying information and a pulse acting as a frequency filter is considered. It is shown that the stimulated echo-hologram can be used to implement the conjunction operation.

Журнал прикладной спектроскопии•Mar 21, 2020•0 citations

Влияние внешнего пространственно неоднородного электрического поля на восстановление фазовой памяти трехуровневой системы в случае формировании стимулированного фотонного эха

Э. И. Низамова, L. A. Nefedev, Guzel I. Garnaeva +3 more

In this paper the conditions for the restoration of phase memory of the three-level system in the presence of external spatially inhomogeneous electric fields in the case of the formation of the stimulated photon echo investigated.

Международный научно-исследовательский журнал•Jan 1, 2013•0 citations
Ihe realization of logical operations for images using an accumulated echo hologram in the presence of external spatially inhomogeneous electric fields is considered. It is shown that the photon echo locking effect allows controlling the type of logical operations (from uniting the sets to their symmetric difference and superposition) by varying the values of gradients of external spatially inhomogeneous electric fields.
Abstract The possibility of implementing logical operations with images using the accumulated echo hologram in the presence of external spatially inhomogeneous electric fields is considered. It is shown that the photon echo locking effect makes it possible to control the execution of logical operations (from the union of sets to the symmetric difference and their superposition), as well to control their form by varying the values of the gradients of external spatially inhomogeneous electric fields and the phase difference between pairs of pulses.
The increasing interest in the study of the interaction of several resonant fields with multilevel quantum systems is due to a wide range of possible applications of various effects observed in the multi-frequency excitation of quantum objects. Among them, we can note color echo holography, information compression in three-level environments, copying of quantum information, and multi-level quantum gates that perform logical operations. In addition, the recording and reproduction of echo holograms in multi-level systems leads to the possibility, along with logical operations, to perform a change in the real-time scale and the sequence of events in the echo-hologram response, the data on which were embedded into the temporal structure of the object laser pulse. The formation of optical transient processes in multilevel systems occurs when the short laser pulses separated in time and resonant of different frequency transitions at the substance have an effect on the system, so that their interaction with each other becomes possible only through the medium and only if the medium has a sufficiently long phase memory. In this situation, each laser pulse transmits information about its wave characteristics to the medium, and this information is retained here until the arrival of the next laser pulses. The formation of optical transient processes in a multilevel system in a solid depends essentially on the degree of correlation of the inhomogeneous broadening on different frequency transitions and different time intervals, in connection with the possible destruction of the reversible phase memory of the system due to a partial mutual fixation energies of transitions. The influence of external spatially inhomogeneous electric fields on the resonant medium can lead to an additional artificially created inhomogeneous broadening. In this case, it is possible to control the phase memory of the system by changing the parameters of external spatially inhomogeneous electric fields, and the most pronounced effect on phase memory is the case of laser excitation of narrow frequency regions of inhomogeneously broadened lines of the resonance transitions. Moreover, the artificially created inhomogeneous broadening by external spatially inhomogeneous electric fields due to the Stark effect can be comparable with the spread of frequencies due to a partial mutual fixation of the transition energies, which leads to a partial restoration of the coherence of the multilevel system. This effect can lead to an increase in the intensity of the response of the stimulated photon echo (SPE) in the three-level system, which is the opposite effect of photon echo locking.
The recording of information in a three-level system in the presence of external spatially inhomogeneous electric fields and information encoding in the first two-frequency object pulse investigated. It is shown that in the case of system equidistantnost is not equal one changes the scale of real-time of SFE response. In imposing a spatially non-uniform electric field between the first and second pulses, and after the third pulse, the effect of SFE response locking observed, the effectiveness of which depends on the magnitude of the field gradient.