09 بهمن 1401

جعفر صادقی

مرتبه علمی: استاد
نشانی: بابلسر، خ. امیر مازندرانی، ولیعصر 12، پ 78
تحصیلات: دکترای تخصصی / ذرات بنیادی
تلفن: 9111125092
دانشکده: دانشکده علوم پایه

مشخصات پژوهش

عنوان Effects of hyperscaling violation and dynamical exponents on drag force
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
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مجله Journal of Physics G: Nuclear and Particle Physics
شناسه DOI 10.1088/1361-6471/aaca0f
پژوهشگران مرجان کیومرثی پور (نفر اول) ، جعفر صادقی (نفر دوم)

چکیده

In this paper, we calculate the drag force of a charged particle in systems with hyperscaling violation using the AdS/CFT correspondence. We obtain energy loss, friction coefficient, diffusion and quasi normal modes of a heavy point particle. Here, we consider two cases. In the first, we assume the heavy point particle moves with constant velocity v. In the second case, we assume the heavy point particle rotates along a circle of radius L with angular velocity ω. Also, we add some electromagnetic field and obtain the energy loss. Finally, we draw some figures for the drag force with respect to the velocity and the temperature. As well, we show how the drag force and energy loss change with the hyperscaling violation parameter θ, dynamical parameter z, mass m and charge Q.