Browsing by Author "Özen, Cem"
Now showing items 1-17 of 17
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Calculating Level Densities of Heavy Nuclei by the Shell Model Monte Carlo Method
Alhassid, Yoram; Özen, Cem; Nakada, Hitoshi (Academic Press Inc Elsevier Science, 2014)The microscopic calculation of nuclear level densities in the presence of correlations is a difficult many-body problem. The shell model Monte Carlo method provides a powerful technique to carry out such calculations using ... -
Collective enhancement of nuclear state densities by the shell model Monte Carlo approach
Özen, Cem; Alhassid, Yoram; Nakada, Hitoshi (IOP Publishing Ltd, 2015)The shell model Monte Carlo (SMMC) approach allows for the microscopic calculation of statistical and collective properties of heavy nuclei using the framework of the configuration-interaction shell model in very large ... -
Collectivity in Heavy Nuclei in the Shell Model Monte Carlo Approach
Özen, Cem; Alhassid, Yoram; Nakada, Hitoshi (EDP Sciences, 2014)The microscopic description of collectivity in heavy nuclei in the framework of the configuration-interaction shell model has been a major challenge. The size of the model space required for the description of heavy nuclei ... -
Crossover from Vibrational to Rotational Collectivity in Heavy Nuclei in the Shell-Model Monte Carlo Approach
Özen, Cem; Alhassid, Yoram; Nakada, Hitoshi (Amer Physical Soc., 2013)Heavy nuclei exhibit a crossover from vibrational to rotational collectivity as the number of neutrons or protons increases from shell closure towards midshell but the microscopic description of this crossover has been a ... -
Deep learning applications on biological data
Kurt, Zeynep (Kadir Has Üniversitesi, 2018)Biological sciences and medicine have been rapidly becoming data-intensive disciplines. Machine learning algorithms in particular deep learning methods are becoming essential tools of data analysis to facilitate our ... -
Kuantum monte carlo yaklaşımında pariteye bağlı nükleer seviye yoğunluğu hesaplamaları
Özen, Cem (2012)[Abstract Not Available] -
Level Densities of Heavy Nuclei in the Shell Model Monte Carlo Approach
Alhassid, Yoram; Bertsch, George F.; Gilbreth, Christopher N.; Nakada, Hitoshi; Özen, Cem (EDP Sciences, 2016)Nuclear level densities are necessary input to the Hauser-Feshbach theory of compound nuclear reactions. However the microscopic calculation of level densities in the presence of correlations is a challenging many-body ... -
Mapping the two-component atomic Fermi gas to the nuclear shell-model
Özen, Cem; Zinner, Nikolaj Thomas (Springer, 2014)The physics of a two-component cold Fermi gas is now frequently addressed in laboratories. Usually this is done for large samples of tens to hundreds of thousands of particles. However it is now possible to produce few-body ... -
Microscopic nuclear level densities by the shell model Monte Carlo method
Alhassid, Yoram; Bertsch, George F.; Gilbreth, Christopher N.; Nakada, Hitoshi; Özen, Cem (Cern, 2015)The configuration-interaction shell model approach provides an attractive framework for the calculation of nuclear level densities in the presence of correlations but the large dimensionality of the model space has hindered ... -
Microsopic nuclear level densities by the shell model Monte Carlo method
Alhassid, Yoram; Bertsch, George F.; Gilberth, Nichole C.; Nakada, Hitoshi; Özen, Cem (CERN, 2015)The configuration-interaction shell model approach provides an attractive framework for the calculation of nuclear level densities in the presence of correlations, but the large dimensionality of the model space has hindered ... -
Nuclear level density of 161Dy in the shell Model Monte Carlo Method
Özen, Cem; Alhassid, Yoram; Nakada, Hitoshi (EDP Sciences, 2012)We extend the shell-model Monte Carlo applications to the rare-earth region to include the odd-even nucleus Dy-161. The projection on an odd number of particles leads to a sign problem at low temperatures making it impractical ... -
Nükleer spin dağılım fonksiyonunun mikroskopik bir yöntemle hesaplanması
[Abstract Not Available] -
Oscillations and chaos in gene network models
Arıkan, Büşra (Kadir Has Üniversitesi, 2017)Oscillations and chaos have always been interesting topics in the theory of dynamical systems. In systems biology, oscillations emerging from gene networks are known to be widespread as in circadian oscillations, various ... -
Recent Advances in the Application of the Shell Model Monte Carlo Approach to Nuclei
Alhassid, Yoram; Bonett-Matiz M.; Mukherjee, A.; Nakada, Hitoshi; Özen, Cem (IOP Publishing Ltd, 2015)The shell model Monte Carlo (SMMC) method is a powerful technique for calculating the statistical and collective properties of nuclei in the presence of correlations in model spaces that are many orders of magnitude larger ... -
Recent developments in the shell model Monte Carlo approach to nuclei
Alhassid, Yoram; Mukherjee, A.; Nakada, Hitoshi; Özen, Cem (IOP Publishing Ltd, 2012)The shell model Monte Carlo (SMMC) approach provides a powerful method for the microscopic calculation of statistical and collective nuclear properties in model spaces that are many orders of magnitude larger than those ... -
Signatures of phase transitions in nuclei at finite excitation energies
Alhassid, Yoram; Özen, Cem; Nakada, Hitoshi (Amer Inst Physics, 2012)The mean-field approximation predicts pairing and shape phase transitions in nuclei as a function of temperature or excitation energy. However in the finite nucleus the singularities of these phase transitions are smoothed ... -
Türkiye'de sürdürülebilir enerji politikaları kapsamında nükleer enerjinin konumu
İşeri, Emre; Özen, Cem (İstanbul Üniversitesi, 2012)Küresel iktisadi ve sosyal kalkınmanın önünü açacak olan sürdürülebilir kalkınma politikaları üretmek yirmi birinci yüzyılın önceliklerinden biri haline gelmiştir. Bu tip politikaların izlenebilmesi için ekonomik, sosyal ...