تصفح حسب المؤلف "Al-Hashimi, M. H."
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Asymptotic freedom, dimensional transmutation, and an infrared conformal fixed point for the ? -function potential in one-dimensional relativistic quantum mechanics
Al-Hashimi, M.H.; Shalaby, A.M.; Wiese, U.-J. ( American Physical Society , 2014 , Article)We consider the Schr?dinger equation for a relativistic point particle in an external one-dimensional ?-function potential. Using dimensional regularization, we investigate both bound and scattering states, and we obtain ... -
Fate of accidental symmetries of the relativistic hydrogen atom in a spherical cavity
Al-Hashimi, M.H.; Shalaby, A.M.; Wiese, U.-J. ( Elsevier Masson , 2015 , Article)The non-relativistic hydrogen atom enjoys an accidental SO(4) symmetry, that enlarges the rotational SO(3) symmetry, by extending the angular momentum algebra with the Runge–Lenz vector. In the relativistic hydrogen atom ... -
The general solution for the relativistic and nonrelativistic Schrödinger equation for the δ(n) -function potential in 1-dimension using cutoff regularization, and the fate of universality
Al-Hashimi, M. H.; Salman, M.; Shalaby, A. M. ( World Scientific Publishing , 2022 , Article)A general method has been developed to solve the Schrödinger equation for an arbitrary derivative of the δ-function potential in 1-d using cutoff regularization. The work treats both the relativistic and nonrelativistic ... -
Indacenodithiazole-Ladder-Type Bridged Di(thiophene)-Difluoro-Benzothiadiazole-Conjugated Copolymers as Ambipolar Organic Field-Effect Transistors
Barłóg M.; Zhang X.; Kulai I.; Yang D.S.; Sredojevic D.N.; Sil A.; Ji X.; Salih K.S.M.; Bazzi H.S.; Bronstein H.; Fang L.; Kim J.; Marks T.J.; Guo X.; Al-Hashimi M.... more authors ... less authors ( American Chemical Society , 2019 , Article)A series of four donor-acceptor conjugated copolymers P1-P4 with linear and branched side chains based on a ladder-type indacenodithiazole (IDTz) moiety containing an electron-deficient thiazole unit are copolymerized with ... -
Majorana fermions in a box
Al-Hashimi, M.?H.; Shalaby, A.?M.; Wiese, U.-J. ( American Physical Society , 2017 , Article)Motivated by potential applications to ultracold matter, we perform a theoretical study of Majorana fermions confined to a finite volume, whose boundary conditions are characterized by self-adjoint extension parameters. ...