A procedure is developed to calculate pulsed electron paramagnetic resonance (EPR) signals with relaxation rigorously including the static Hamiltonian and relaxation during pulses by solving Liouville von Neumann (LVN) equation numerically in Liouville space. It can be carried out within a reasonable time on a PC using Fortran or Matlab. It is illustrated here numerically, as coded in Matlab, to calculate the spin echo correlation spectroscopy (SECSY) and echoelectron-electron double resonance (echo-ELDOR) signals for a coupled electron-nuclear system with the electron spin (S= 1⁄2.) and nuclear spin (I= 1⁄2) for the experimental results of Lee, Patyal and Freed [1] in a malonic acid single crystal.
{"title":"A Rigorous Calculation of Pulsed EPR SECSY and Echo-ELDOR Signals: Inclusion of Static Hamiltonian and Relaxation during Pulses","authors":"S. Misra","doi":"10.24218/jatpr.2019.20","DOIUrl":"https://doi.org/10.24218/jatpr.2019.20","url":null,"abstract":"A procedure is developed to calculate pulsed electron paramagnetic resonance (EPR) signals with relaxation rigorously including the static Hamiltonian and relaxation during pulses by solving Liouville von Neumann (LVN) equation numerically in Liouville space. It can be carried out within a reasonable time on a PC using Fortran or Matlab. It is illustrated here numerically, as coded in Matlab, to calculate the spin echo correlation spectroscopy (SECSY) and echoelectron-electron double resonance (echo-ELDOR) signals for a coupled electron-nuclear system with the electron spin (S= 1⁄2.) and nuclear spin (I= 1⁄2) for the experimental results of Lee, Patyal and Freed [1] in a malonic acid single crystal.","PeriodicalId":325731,"journal":{"name":"Journal of Applied and Theoretical Physics Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123833722","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}
The relativistic symmetries of Dirac equation with a spinorbit coupled with Hulthen potential under Coulomb-like tensor interaction have studied. The energy eigenvalues and the corresponding eigenfunctions of this system for the spin and pseudospin symmetries have also been obtained using the parametric generalization of Nikiforov-Uvarov method. Also, in this work, the numerical bound state energy for pseudospin symmetry with fixed pseudo coupling constant has been computed.
{"title":"Relativistic Studies of Dirac Equation with a Spin-orbit Coupled Hulthen Potential including a Coulomb-like Tensor Interaction","authors":"A. Antia","doi":"10.24218/jatpr.2019.19","DOIUrl":"https://doi.org/10.24218/jatpr.2019.19","url":null,"abstract":"The relativistic symmetries of Dirac equation with a spinorbit coupled with Hulthen potential under Coulomb-like tensor interaction have studied. The energy eigenvalues and the corresponding eigenfunctions of this system for the spin and pseudospin symmetries have also been obtained using the parametric generalization of Nikiforov-Uvarov method. Also, in this work, the numerical bound state energy for pseudospin symmetry with fixed pseudo coupling constant has been computed.","PeriodicalId":325731,"journal":{"name":"Journal of Applied and Theoretical Physics Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134634974","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}
Xiaofen Huang, Tinggui Zhang, X. Li-Jost, Yuan-hong Tao, S. Fei
{"title":"A Note on the Strong Unitary Uncertainty Relations","authors":"Xiaofen Huang, Tinggui Zhang, X. Li-Jost, Yuan-hong Tao, S. Fei","doi":"10.24218/JATPR.2019.18","DOIUrl":"https://doi.org/10.24218/JATPR.2019.18","url":null,"abstract":"","PeriodicalId":325731,"journal":{"name":"Journal of Applied and Theoretical Physics Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115782876","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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