Pub Date : 2023-01-01DOI: 10.21883/os.2023.01.54549.4261-22
А.В. Струц, А В Бармасов, M. F. Brown
We review osmotic stress studies of G-protein-coupled receptor rhodopsin. Despite the established presence of small amounts of structural water in these receptors, the influence of bulk water on their function remains unknown. Investigations of osmotic stress effects on the GPCR archetype rhodopsin have provided unique data about the role of water in receptor activation. It was discovered that osmolytes shift the rhodopsin equilibrium after photoactivation, either to the active or inactive conformations depending on their molar mass. Experimentally at least 80 water molecules have been found to enter rhodopsin in the transition to the active state. We propose that this influx of water is a necessary condition for receptor activation. If the water movement is blocked, e.g., by large osmolytes or by dehydration, then the receptor does not undergo its functional transition. The results suggest a new model whereby rhodopsin becomes swollen and partially unfolded in the activation mechanism. Water thus acts as a powerful allosteric modulator of functioning for rhodopsin-like receptors.
{"title":"Применение спектральных методов для исследования родопсина ---рецептора, сопряженного с G-белком. III. Эффект осмотического давления","authors":"А.В. Струц, А В Бармасов, M. F. Brown","doi":"10.21883/os.2023.01.54549.4261-22","DOIUrl":"https://doi.org/10.21883/os.2023.01.54549.4261-22","url":null,"abstract":"We review osmotic stress studies of G-protein-coupled receptor rhodopsin. Despite the established presence of small amounts of structural water in these receptors, the influence of bulk water on their function remains unknown. Investigations of osmotic stress effects on the GPCR archetype rhodopsin have provided unique data about the role of water in receptor activation. It was discovered that osmolytes shift the rhodopsin equilibrium after photoactivation, either to the active or inactive conformations depending on their molar mass. Experimentally at least 80 water molecules have been found to enter rhodopsin in the transition to the active state. We propose that this influx of water is a necessary condition for receptor activation. If the water movement is blocked, e.g., by large osmolytes or by dehydration, then the receptor does not undergo its functional transition. The results suggest a new model whereby rhodopsin becomes swollen and partially unfolded in the activation mechanism. Water thus acts as a powerful allosteric modulator of functioning for rhodopsin-like receptors.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75128520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.21883/os.2023.03.55392.4154-22
Experimental results on photobleaching of Chicago Sky Blue diazo dye solutions using ZnO/ZnAl2O4/Cu photocatalytic nanocomposites are presented. Data on the crystal structure and morphology of these nanocomposites obtained by the polymer-salt method are presented. The results of studies of the kinetics of the processes of photobleaching of dye solutions and its adsorption on the surface of powdered nanocomposites showed that the experimental data correspond to known kinetic models using the first and second order rate equations for these processes.
{"title":"Фотокаталитические и адсорбционные свойства нанокомпозитов ZnO/ZnAl-=SUB=-2-=/SUB=-O-=SUB=-4-=/SUB=-/Cu","authors":"","doi":"10.21883/os.2023.03.55392.4154-22","DOIUrl":"https://doi.org/10.21883/os.2023.03.55392.4154-22","url":null,"abstract":"Experimental results on photobleaching of Chicago Sky Blue diazo dye solutions using ZnO/ZnAl2O4/Cu photocatalytic nanocomposites are presented. Data on the crystal structure and morphology of these nanocomposites obtained by the polymer-salt method are presented. The results of studies of the kinetics of the processes of photobleaching of dye solutions and its adsorption on the surface of powdered nanocomposites showed that the experimental data correspond to known kinetic models using the first and second order rate equations for these processes.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75980602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.21883/os.2023.05.55721.55-22
Михаил Георгиевич Зуев, А.А. Васин, Владислав Генрихович Ильвес, С.Ю. Соковнин
Polycrystalline phosphors with a Sr2Y8-x-yYbyTmxSi6O26 (x=0.005-0.5, y=0.2,0.3) total formula were synthesized. Nanoluminophor has been obtained from the Sr2Y7.695Yb0.3Tm0.005Si6O26 microcrystalline sample by the vacuum electron been evaporation, in the amorphous state, with the ~10.6 nm particle size. It is found, raman spectra undergoing modification by the transition from bulk- to nanosize state. Photoluminescene spectra micro- and nanophosphors are studied. Intensity of the blue emission, by the UV ligth excitation, grows in the x=0.005-0.02 region, with the x increasing. Upconversion photoluminescence (UPCL) spectra of the bulk phosphors and nanosample based on the Sr2Y7.695Yb0.3Tm0.005Si6O26 were measurd. At the pumping power around 70.8 mW, by the laser source with the λ=980 nm, thereshold population of the 3F3 level of Tm3+ ions exist. At a power higher 70.8 mW, a sharp increase of the luminescence intensityof the bulk- and nanophosphor occurs. For the 3H4->3H6 transition thereshold pumping power absent. This indicates that, pumping, during Yb->Tm energy transer, is a single photon process.
{"title":"Новые апконверсионные объемные и нанолюминофоры на основе Sr-=SUB=-2-=/SUB=-Y-=SUB=-8-x-y-=/SUB=-Yb-=SUB=-y-=/SUB=-Tm-=SUB=-x-=/SUB=-Si-=SUB=-6-=/SUB=-O-=SUB=-26-=/SUB=-","authors":"Михаил Георгиевич Зуев, А.А. Васин, Владислав Генрихович Ильвес, С.Ю. Соковнин","doi":"10.21883/os.2023.05.55721.55-22","DOIUrl":"https://doi.org/10.21883/os.2023.05.55721.55-22","url":null,"abstract":"Polycrystalline phosphors with a Sr2Y8-x-yYbyTmxSi6O26 (x=0.005-0.5, y=0.2,0.3) total formula were synthesized. Nanoluminophor has been obtained from the Sr2Y7.695Yb0.3Tm0.005Si6O26 microcrystalline sample by the vacuum electron been evaporation, in the amorphous state, with the ~10.6 nm particle size. It is found, raman spectra undergoing modification by the transition from bulk- to nanosize state. Photoluminescene spectra micro- and nanophosphors are studied. Intensity of the blue emission, by the UV ligth excitation, grows in the x=0.005-0.02 region, with the x increasing. Upconversion photoluminescence (UPCL) spectra of the bulk phosphors and nanosample based on the Sr2Y7.695Yb0.3Tm0.005Si6O26 were measurd. At the pumping power around 70.8 mW, by the laser source with the λ=980 nm, thereshold population of the 3F3 level of Tm3+ ions exist. At a power higher 70.8 mW, a sharp increase of the luminescence intensityof the bulk- and nanophosphor occurs. For the 3H4->3H6 transition thereshold pumping power absent. This indicates that, pumping, during Yb->Tm energy transer, is a single photon process.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76161702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.21883/os.2023.03.55393.4368-22
В.А. Шутаев, Е. А. Гребенщикова, В. А. Матвеев, Надежда Николаевна Губанова, Ю.П. Яковлев
The kinetics of changing in optical transmittance of palladium (Pd) nanolayers (about 10 nm thick, deposited on object glass substrates by thermal evaporation in vacuum) in hydrogen flow (100 vol.%) in the temperature range of 300-335 K are studied. It is shown that the rate of changing of palladium optical transmittance at hydrogen flow rises linearly with increasing the temperature due to sorption of hydrogen by Pd layer. The rate of changing in optical transmittance of Pd layer during sorption and desorption of hydrogen is established to rise by about one order with increasing the temperature from 300 to 335 K. The curves describing the changing in optical transmittance of palladium nanolayer during hydrogen desorption have two distinct sections: linear and nonlinear. The linear section of the curve weakly depends on temperature, while the nonlinear section sharply rises with increasing the temperature. Such the changing of the rate in optical transmittance can be associated with phase transition from β- to α-phase during hydrogen desorption from palladium.
{"title":"Кинетика изменения оптической прозрачности нанопленок палладия при взаимодействии с водородом","authors":"В.А. Шутаев, Е. А. Гребенщикова, В. А. Матвеев, Надежда Николаевна Губанова, Ю.П. Яковлев","doi":"10.21883/os.2023.03.55393.4368-22","DOIUrl":"https://doi.org/10.21883/os.2023.03.55393.4368-22","url":null,"abstract":"The kinetics of changing in optical transmittance of palladium (Pd) nanolayers (about 10 nm thick, deposited on object glass substrates by thermal evaporation in vacuum) in hydrogen flow (100 vol.%) in the temperature range of 300-335 K are studied. It is shown that the rate of changing of palladium optical transmittance at hydrogen flow rises linearly with increasing the temperature due to sorption of hydrogen by Pd layer. The rate of changing in optical transmittance of Pd layer during sorption and desorption of hydrogen is established to rise by about one order with increasing the temperature from 300 to 335 K. The curves describing the changing in optical transmittance of palladium nanolayer during hydrogen desorption have two distinct sections: linear and nonlinear. The linear section of the curve weakly depends on temperature, while the nonlinear section sharply rises with increasing the temperature. Such the changing of the rate in optical transmittance can be associated with phase transition from β- to α-phase during hydrogen desorption from palladium.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"72 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86342852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.21883/os.2023.02.55006.6-23
И. О. Киняевский, Анатолий Валериевич Корибут, И.В. Гриценко, А.М. Сагитова, М.В. Ионин, Е. Э. Дунаева, А. А. Ионин
The effect of focusing, taking into account self-focusing, on the interference of SRS (stimulated Raman scattering) and self-phase modulation in a 8-mm BaWO4 crystal pumped by laser pulses with a duration of 0.3 ps and a wavelength of 515 nm is experimentally studied. The maximum efficiency of SRS conversion (~23%) to the Stokes component of the ν1 = 925 cm–1 strongest mode is obtained with a lens with a focal length of 40 mm at the linear focus shift towards the rear facet of the crystal. The increase in efficiency, when the linear focus is shifted to the rear facet, is associated with an increase in the distance between the linear and nonlinear foci, which results in an increase in the effective length of the nonlinear interaction.
{"title":"Влияние фокусировки на нестационарное ВКР 0.3 ps лазерных импульсов в кристалле BaWO-=SUB=-4-=/SUB=- с самозаправкой ФСМ","authors":"И. О. Киняевский, Анатолий Валериевич Корибут, И.В. Гриценко, А.М. Сагитова, М.В. Ионин, Е. Э. Дунаева, А. А. Ионин","doi":"10.21883/os.2023.02.55006.6-23","DOIUrl":"https://doi.org/10.21883/os.2023.02.55006.6-23","url":null,"abstract":"The effect of focusing, taking into account self-focusing, on the interference of SRS (stimulated Raman scattering) and self-phase modulation in a 8-mm BaWO4 crystal pumped by laser pulses with a duration of 0.3 ps and a wavelength of 515 nm is experimentally studied. The maximum efficiency of SRS conversion (~23%) to the Stokes component of the ν1 = 925 cm–1 strongest mode is obtained with a lens with a focal length of 40 mm at the linear focus shift towards the rear facet of the crystal. The increase in efficiency, when the linear focus is shifted to the rear facet, is associated with an increase in the distance between the linear and nonlinear foci, which results in an increase in the effective length of the nonlinear interaction.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"109 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87601027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.21883/os.2023.05.55725.1027-22
Moorad Alexanian, Vanik E. Mkrtchian
Подробно проанализированы свойства угловой поляризации в центре отсчета масс системы двухфотонных сферических состояний Ландау в импульсном пространстве. Угловые распределения при фиксированных значениях J и M не зависят от четности P, а определяются двумя разными функциями полярного угла между относительным импульсом и осями квантования. Матрицы плотности двухфотонной поляризации выведены для каждого значения J, M и P. Подробно проанализированы корреляции линейной поляризации отдельных фотонов. Rроме обычных законов корреляции для J ≥ 2, выраженных через sin и cos угла между ориентациями анализаторов, найдены корреляции по сумме углов ориентаций анализаторов. Ключевые слова: двухфотонные состояния, квантовая перепутанность, четность, правила отбора, спиральность, поляризация, угловой момент, функция Вигнера, параметры Стокса.
{"title":"Угловые распределения и поляризационные корреляции двухфотонных сферических состояний","authors":"Moorad Alexanian, Vanik E. Mkrtchian","doi":"10.21883/os.2023.05.55725.1027-22","DOIUrl":"https://doi.org/10.21883/os.2023.05.55725.1027-22","url":null,"abstract":"Подробно проанализированы свойства угловой поляризации в центре отсчета масс системы двухфотонных сферических состояний Ландау в импульсном пространстве. Угловые распределения при фиксированных значениях J и M не зависят от четности P, а определяются двумя разными функциями полярного угла между относительным импульсом и осями квантования. Матрицы плотности двухфотонной поляризации выведены для каждого значения J, M и P. Подробно проанализированы корреляции линейной поляризации отдельных фотонов. Rроме обычных законов корреляции для J ≥ 2, выраженных через sin и cos угла между ориентациями анализаторов, найдены корреляции по сумме углов ориентаций анализаторов. Ключевые слова: двухфотонные состояния, квантовая перепутанность, четность, правила отбора, спиральность, поляризация, угловой момент, функция Вигнера, параметры Стокса.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"59 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86214198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.21883/os.2023.05.55709.53-22
Д. Т. Валиев, О. Л. Хасанов, Э. С. Двилис, В. Д. Пайгин, Ч. Линь, Сергей Анатольевич Степанов
The series of MgAl2O4 ceramics doped with high level of europium oxide (Eu2O3) up to 15 wt.% was fabricated by the Spark Plasma Sintering technique. The prepared ceramics have been tested using the various experimental techniques: X-ray diffraction, scanning electron microscopy, as well as optical and cathodoluminescence spectroscopy. The influence of europium oxide on the complex of optical and luminescent characteristics of MgAl2O4:Eu ceramics is discussed. The nature of the luminescence centers and the luminescence decay parameters are considered in detail.
{"title":"Оптические и люминесцентные свойства керамик MgAl-=SUB=-2-=/SUB=-O-=SUB=-4-=/SUB=-, активированных ионами Eu в высокой концентрации","authors":"Д. Т. Валиев, О. Л. Хасанов, Э. С. Двилис, В. Д. Пайгин, Ч. Линь, Сергей Анатольевич Степанов","doi":"10.21883/os.2023.05.55709.53-22","DOIUrl":"https://doi.org/10.21883/os.2023.05.55709.53-22","url":null,"abstract":"The series of MgAl2O4 ceramics doped with high level of europium oxide (Eu2O3) up to 15 wt.% was fabricated by the Spark Plasma Sintering technique. The prepared ceramics have been tested using the various experimental techniques: X-ray diffraction, scanning electron microscopy, as well as optical and cathodoluminescence spectroscopy. The influence of europium oxide on the complex of optical and luminescent characteristics of MgAl2O4:Eu ceramics is discussed. The nature of the luminescence centers and the luminescence decay parameters are considered in detail.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85397254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.21883/os.2023.03.55386.4535-22
Г.А. Мельников, Н.М. Игнатенко, К. Н. Болдырев, О.А. Манжос, А.С. Громков
The results of experimental and theoretical studies of the low-frequency region of infrared spectra and Raman scattering spectra in liquid cyclic hydrocarbons (arenes) and their halogen-substituted ones are analyzed. The results of experimental studies of 13 liquids in the range 20–700 cm–1 using a high-resolution all-wavelength vacuum Fourier spectrometer (Bruker IFS 125 HR) are presented. It is shown that the appearance of spectral bands in the low-frequency region (the region of the “boson” peak) of the infrared spectra of liquids is due to the formation and decay of cluster formations in the structure of the liquid.
{"title":"Характерные особенности низкочастотной области инфракрасных спектров и кластерная модель строения жидкостей","authors":"Г.А. Мельников, Н.М. Игнатенко, К. Н. Болдырев, О.А. Манжос, А.С. Громков","doi":"10.21883/os.2023.03.55386.4535-22","DOIUrl":"https://doi.org/10.21883/os.2023.03.55386.4535-22","url":null,"abstract":"The results of experimental and theoretical studies of the low-frequency region of infrared spectra and Raman scattering spectra in liquid cyclic hydrocarbons (arenes) and their halogen-substituted ones are analyzed. The results of experimental studies of 13 liquids in the range 20–700 cm–1 using a high-resolution all-wavelength vacuum Fourier spectrometer (Bruker IFS 125 HR) are presented. It is shown that the appearance of spectral bands in the low-frequency region (the region of the “boson” peak) of the infrared spectra of liquids is due to the formation and decay of cluster formations in the structure of the liquid.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"40 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91474821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.21883/os.2023.02.55002.14-23
А. А. Андреев, Л. А. Литвинов, К. Ю. Платонов
The amplification in a free-electron laser undulator of a short-wavelength subattosecond pulse formed in a laser plasma upon its interaction with a relativistic electron bunch produced by a petawatt laser is considered. The aim of this work is to find the parameters of the system at which it is possible to amplify ultrashort pulses with a duration of up to hundreds of zeptoseconds.
{"title":"Усиление коротковолновых субаттоимпульсов в лазере нa свободных электронах при помощи электронов, ускоренных в лазерной плазме","authors":"А. А. Андреев, Л. А. Литвинов, К. Ю. Платонов","doi":"10.21883/os.2023.02.55002.14-23","DOIUrl":"https://doi.org/10.21883/os.2023.02.55002.14-23","url":null,"abstract":"The amplification in a free-electron laser undulator of a short-wavelength subattosecond pulse formed in a laser plasma upon its interaction with a relativistic electron bunch produced by a petawatt laser is considered. The aim of this work is to find the parameters of the system at which it is possible to amplify ultrashort pulses with a duration of up to hundreds of zeptoseconds.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91544490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.21883/os.2023.07.56130.4902-23
Е.Н. Башмакова, Е.А. Вашукевич, Т Ю Голубева
To date, two-qubit quantum logic gates have become an essential part of quantum computing. The study of methods for their implementation is an important practical problem for various quantum optical and information applications. In this paper, we have considered a protocol for multimode quantum non demolition interaction between an atomic ensemble and multimode light with orbital angular momentum in order to analyze the applicability of this protocol in discrete variables computing. We have developed a multimode interaction Hamiltonian and analyzed the dynamics of field and atomic variables depending on the structure of the driving field. We discuss in detail the procedure for separating qubit noninteracting subsystems on a set of atomic and field modes for various values of the orbital angular momentum of the driving field. Such a procedure helps to reduce the considered protocol to the parallel evolution of two-qubit closed systems.
{"title":"Параллельная многокубитная эволюция в протоколе квантового неразрушающего взаимодействия","authors":"Е.Н. Башмакова, Е.А. Вашукевич, Т Ю Голубева","doi":"10.21883/os.2023.07.56130.4902-23","DOIUrl":"https://doi.org/10.21883/os.2023.07.56130.4902-23","url":null,"abstract":"To date, two-qubit quantum logic gates have become an essential part of quantum computing. The study of methods for their implementation is an important practical problem for various quantum optical and information applications. In this paper, we have considered a protocol for multimode quantum non demolition interaction between an atomic ensemble and multimode light with orbital angular momentum in order to analyze the applicability of this protocol in discrete variables computing. We have developed a multimode interaction Hamiltonian and analyzed the dynamics of field and atomic variables depending on the structure of the driving field. We discuss in detail the procedure for separating qubit noninteracting subsystems on a set of atomic and field modes for various values of the orbital angular momentum of the driving field. Such a procedure helps to reduce the considered protocol to the parallel evolution of two-qubit closed systems.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90933897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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