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Synthesis, Structural and Optical Characterisation of Orthoferrites Rfeo3 (R= Pr,Nd) 正铁氧体 Rfeo3（R= Pr,Nd）的合成、结构和光学特性分析
Indian Journal of Advanced Physics Pub Date : 2024-01-30 DOI: 10.54105/ijap.b1027.02021023
J Pallavi, Dr. Guduru Prasad, Prof. M Vithal
{"title":"Synthesis, Structural and Optical Characterisation of Orthoferrites Rfeo3 (R= Pr,Nd)","authors":"J Pallavi, Dr. Guduru Prasad, Prof. M Vithal","doi":"10.54105/ijap.b1027.02021023","DOIUrl":"https://doi.org/10.54105/ijap.b1027.02021023","url":null,"abstract":"Orthorhombic structure of rare earth perovskite type oxide (RFeO3, R =Pr, Nd) nano particles prepared by metathesis method. Powders prepared were characterized by several measurements such as X-ray diffraction, scanning electron microscope, EDX, FTIR, and diffuse reflectance spectroscopy to understand their physio-chemical properties. NdFeo3 and PrFeo3, synthesized metathesis method crystallite size of 61nm and 60.5 nm respectively.","PeriodicalId":480358,"journal":{"name":"Indian Journal of Advanced Physics","volume":"7 40","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139591777","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}
引用次数: 0
Entropy in Spacetime: Unravelling the Threads of Human Influence 时空中的熵揭开人类影响的面纱
Indian Journal of Advanced Physics Pub Date : 2024-01-30 DOI: 10.54105/ijap.a1048.03021023
Arvind K C, Swetha Shree J
{"title":"Entropy in Spacetime: Unravelling the Threads of Human Influence","authors":"Arvind K C, Swetha Shree J","doi":"10.54105/ijap.a1048.03021023","DOIUrl":"https://doi.org/10.54105/ijap.a1048.03021023","url":null,"abstract":"This study explores the complex interplay between entropy and human behavior in the context of spacetime. It seeks to investigate the broad and interwoven impact of human action on the entropy of the universe at the individual and societal levels by fusing ideas from thermodynamics, physics, and social sciences. The goal of this multidisciplinary study is to offer a comprehensive and sophisticated knowledge of the intricate interactions that occur between human behavior and spacetime's changing dynamics.","PeriodicalId":480358,"journal":{"name":"Indian Journal of Advanced Physics","volume":"9 44","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139591454","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}
引用次数: 0
Dark Matter is Just Gravity, Only Normal Matter is the truth Dark Matter is Just Gravity 暗物质就是引力，只有正常物质才是真理
Indian Journal of Advanced Physics Pub Date : 2023-10-30 DOI: 10.54105/ijap.b1040.103223
Sandeep S. Jaiswal
{"title":"Dark Matter is Just Gravity, Only Normal Matter is the truth Dark Matter is Just Gravity","authors":"Sandeep S. Jaiswal","doi":"10.54105/ijap.b1040.103223","DOIUrl":"https://doi.org/10.54105/ijap.b1040.103223","url":null,"abstract":"All the major observational evidences available so far for the existence of dark matter can be explained by simple physical equations and derived astronomical data proving that dark matter theory is wrong. Furthermore, the normal matter is the only matter this is causing all the phenomena’s to happen that was previously believed to be due to unexplained dark matter. New general laws of physics for galactical rotation that cannot be explained by Kepler’s law alone is also derived.","PeriodicalId":480358,"journal":{"name":"Indian Journal of Advanced Physics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136019521","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}
引用次数: 0
Entanglement Correlation from a Non-degenerate Three-Level Laser with a Parametric Amplifier and Coupled to Vacuum Reservoir 带参量放大器的非简并三能级激光器与真空库耦合的纠缠关系
Indian Journal of Advanced Physics Pub Date : 2023-10-30 DOI: 10.54105/ijap.b1042.103223
Negasa Belay, Edobus Mosisa, Chali Edosa
{"title":"Entanglement Correlation from a Non-degenerate Three-Level Laser with a Parametric Amplifier and Coupled to Vacuum Reservoir","authors":"Negasa Belay, Edobus Mosisa, Chali Edosa","doi":"10.54105/ijap.b1042.103223","DOIUrl":"https://doi.org/10.54105/ijap.b1042.103223","url":null,"abstract":"The quantum properties of a non-degenerate three-level laser with the parametric amplifier and coupled to a thermal reservoir are thoroughly analyzed with the use of the pertinent master equation and stochastic differential equations associated with the normal ordering. Applying solutions of resulting differential equations, quadrature variance, the mean and variance of photon number, the photon number correlation are calculated. However, the two-mode driving light has no effect on the squeezing properties of the cavity modes. Employing the same solutions, one can also obtain anti normally ordered characteristic function defined in the Heisenberg picture. For a linear gain coefficient of (A = 100), for a cavity damping constant of K= 0:8, μ = 0.16 and for thermal reservoir nth = 0, the maximum intra cavity photon entanglement is found at steady state and at threshold to be 70%.","PeriodicalId":480358,"journal":{"name":"Indian Journal of Advanced Physics","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136019109","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}
引用次数: 0
Entangled Photon Generation From a Three-Level Laser with a Parametric Amplifier and Coupled to a Thermal Reservoir 耦合到热源的三能级参量放大器激光器产生纠缠光子
Indian Journal of Advanced Physics Pub Date : 2023-04-30 DOI: 10.54105/ijap.a1034.043123
Negasa Belay
{"title":"Entangled Photon Generation From a Three-Level Laser with a Parametric Amplifier and Coupled to a Thermal Reservoir","authors":"Negasa Belay","doi":"10.54105/ijap.a1034.043123","DOIUrl":"https://doi.org/10.54105/ijap.a1034.043123","url":null,"abstract":"In this article we study squeezing and statistical properties of light producing by a non-degenerate three-level laser with the parametric amplifier and coupled to a thermal reservoir. With the aid of master equation, we obtain stochastic differential equations. Applying solutions of resulting differential equations, we calculate quadrature variance, the mean and variance of photon number, the photon number correlation. However, the two-mode driving light has no effect on the squeezing properties of the cavity modes. On the other hand, parametric amplifier and thermal reservoir increase the mean and variance of photon number. Furthermore, employing the same solutions, we also obtain anti normally ordered characteristic function defined in the Heisenberg picture. For a linear gain coefficient of (A = 100), for a cavity damping constant of K= 0:8,μ = 0 and for thermal reservoir ¯ nth = 0 ,the maximum intra cavity photon entanglement is found at steady state and at threshold to be 60%.","PeriodicalId":480358,"journal":{"name":"Indian Journal of Advanced Physics","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135563918","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}
引用次数: 0
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