Shahbaz Ahmed Alvi | University of Ferrara (original) (raw)
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Books by Shahbaz Ahmed Alvi
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The subject of this book is my research project with Dr. Zaheer Uddin during my academic days at ... more The subject of this book is my research project with Dr. Zaheer Uddin during my academic days at University of Karachi. The motivation of this work was the ongoing research work in hyperfine spectroscopy there. The purpose of this project was to design an algorithm for modelling the hyperfine splitting in atoms and ions and their classification with the atomic and ionic energy levels of the element. We also developed a simulation during this project which, using the algorithm, models the hyperfine splitting in atoms and ions and allows efficient management of hyperfine data and classification of hyperfine structures.
This book outlines a brief account on the historical development of the structure of atom and the field of Spectroscopy. I will then explain the basis and origin of hyperfine splitting in element and why its modelling and classification is important to us. In addition, I also discuss the mathematical structure of the algorithm and simulation and how it models the hyperfine slitting in an atom or ion while giving a quick overview of the programming platform we used. However, I believe, the algorithm and procedure is equally valid with any other programming and computation platform.
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Talks by Shahbaz Ahmed Alvi
Talk given on the occasion of international Math day sponsored by Pi Phi Society at Habib Univers... more Talk given on the occasion of international Math day sponsored by Pi Phi Society at Habib University.
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Talk given at Department of Physics, University of Karachi on the occasion of celebrating 100 yea... more Talk given at Department of Physics, University of Karachi on the occasion of celebrating 100 years of Einsteins General Theory of Relativity
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Dark matter makes up about 23% of matter-energy content of the Universe, other components being t... more Dark matter makes up about 23% of matter-energy content of the Universe, other components being the normal baryonic matter and dark energy. Apart from the usual structure of dark matter halo around galaxies, simulations of galaxy formation suggests an additional dark matter component in Milky Way mass galaxies similar to the stellar disk of stars in galaxies. Current detection experiment for dark matter are configured for the standard halo structure. In this work we study how the existence of dark matter disk can effect these experiments. More importantly, we focus on the low energy spectrum of WIMP scattering in direct detection experiments and propose lowered threshold in current experiment which can exploit the effects of dark matter disk, if it indeed exists.
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Research Papers by Shahbaz Ahmed Alvi
The application of spectrometers cannot be over estimated, keeping in mind the the vast amount of... more The application of spectrometers cannot be over estimated, keeping in
mind the the vast amount of information gathered about the Cosmos came from analyzing Electromagnetic waves of different wavelengths. In this paper we present a design for a spectrometer to electronically record the diffraction pattern of gas based spectral lamps. Although, for the purpose of demonstration, we present results from gas based spectral lamps but the setup can be used with any light source or monochoromator, a prism or diffraction grating.
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Teaching Documents by Shahbaz Ahmed Alvi
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Lecture notes for course 302
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Lecture notes for course 302
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Lecture notes for course 302
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Lecture notes for course 302
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Lecture notes for course 302
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Lecture notes for course 402
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Lecture notes for course 402
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Lecture notes for course 402
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Lecture notes of Wave motion for course 302
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The subject of this book is my research project with Dr. Zaheer Uddin during my academic days at ... more The subject of this book is my research project with Dr. Zaheer Uddin during my academic days at University of Karachi. The motivation of this work was the ongoing research work in hyperfine spectroscopy there. The purpose of this project was to design an algorithm for modelling the hyperfine splitting in atoms and ions and their classification with the atomic and ionic energy levels of the element. We also developed a simulation during this project which, using the algorithm, models the hyperfine splitting in atoms and ions and allows efficient management of hyperfine data and classification of hyperfine structures.
This book outlines a brief account on the historical development of the structure of atom and the field of Spectroscopy. I will then explain the basis and origin of hyperfine splitting in element and why its modelling and classification is important to us. In addition, I also discuss the mathematical structure of the algorithm and simulation and how it models the hyperfine slitting in an atom or ion while giving a quick overview of the programming platform we used. However, I believe, the algorithm and procedure is equally valid with any other programming and computation platform.
Bookmarks Related papers MentionsView impact
Talk given on the occasion of international Math day sponsored by Pi Phi Society at Habib Univers... more Talk given on the occasion of international Math day sponsored by Pi Phi Society at Habib University.
Bookmarks Related papers MentionsView impact
Talk given at Department of Physics, University of Karachi on the occasion of celebrating 100 yea... more Talk given at Department of Physics, University of Karachi on the occasion of celebrating 100 years of Einsteins General Theory of Relativity
Bookmarks Related papers MentionsView impact
Dark matter makes up about 23% of matter-energy content of the Universe, other components being t... more Dark matter makes up about 23% of matter-energy content of the Universe, other components being the normal baryonic matter and dark energy. Apart from the usual structure of dark matter halo around galaxies, simulations of galaxy formation suggests an additional dark matter component in Milky Way mass galaxies similar to the stellar disk of stars in galaxies. Current detection experiment for dark matter are configured for the standard halo structure. In this work we study how the existence of dark matter disk can effect these experiments. More importantly, we focus on the low energy spectrum of WIMP scattering in direct detection experiments and propose lowered threshold in current experiment which can exploit the effects of dark matter disk, if it indeed exists.
Bookmarks Related papers MentionsView impact
The application of spectrometers cannot be over estimated, keeping in mind the the vast amount of... more The application of spectrometers cannot be over estimated, keeping in
mind the the vast amount of information gathered about the Cosmos came from analyzing Electromagnetic waves of different wavelengths. In this paper we present a design for a spectrometer to electronically record the diffraction pattern of gas based spectral lamps. Although, for the purpose of demonstration, we present results from gas based spectral lamps but the setup can be used with any light source or monochoromator, a prism or diffraction grating.
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
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Lecture notes for course 302
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Lecture notes for course 302
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Lecture notes for course 302
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Lecture notes for course 302
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Lecture notes for course 302
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Lecture notes for course 402
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Lecture notes for course 402
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Lecture notes for course 402
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Lecture notes of Wave motion for course 302
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The article is written as a public outreach effort on the existence (or absence) of alien life fo... more The article is written as a public outreach effort on the existence (or absence) of alien life form in the universe even, as Fermi says, the chances are phenomenal. The article explains the Fermi Paradox, "Where is everybody", to the general masses. The article was published on the website of DawnNews.TV. it is only available in Urdu.
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The article was published on the website of DawnNew.TV. The article is obituary to Stephen Hawkin... more The article was published on the website of DawnNew.TV. The article is obituary to Stephen Hawking on his death and aims to explain, to general audience, Stephen Hawking's contribution to Science, specifically on black holes. The article is only available in Urdu.
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Technology is advancing exponential pace; becoming more and more sophisticated: uncontrolled, unr... more Technology is advancing exponential pace; becoming more and more sophisticated: uncontrolled, unrestrained. We are creating machines that are smarter and more interactive than before. In this research our aim is to study and understand the implication of smarter-than-human machines on the mankind. We seek to develop protocols and laws that can be built into such “artificially” intelligent (AI) machines to ensure the safety and security of the human race and its survival.
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This is the poster of my work which I presented at the conference Physics and the World of Today ... more This is the poster of my work which I presented at the conference Physics and the World of Today in December of 2008 at the Physics Department in University of Karachi.
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Computer simulations have become an important part of today’s spectroscopic studies. Not only do ... more Computer simulations have become an important part of today’s spectroscopic studies. Not only do they help experimenters analyse results, they are also important for information and data management. The use of computer simulations becomes especially important in the study of hyperfine interactions within atoms and ions where there are many levels to be managed. Furthermore, formula and equations used for the determination of hyperfine structure are extremely lengthy and hence very time consuming.
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Dark matter makes up about 23% of matter-energy content of the Universe, other components being t... more Dark matter makes up about 23% of matter-energy content of the Universe, other components being the normal baryonic matter and dark energy. Apart from the usual structure of dark matter halo around galaxies, simulations of galaxy formation suggest an additional dark matter component in Milky Way mass galaxies similar to the stellar disk of stars in galaxies. Current detection experiment for dark matter is configured for the standard halo structure. In this work, we study how the existence of dark matter disk can affect these experiments. More importantly, we focus on the low energy spectrum of WIMP scattering indirect detection experiments and propose lowered threshold in the current experiment which can exploit the effects of dark matter disk, if it indeed exists.
Bookmarks Related papers MentionsView impact