نتایج جستجو برای: function negf formalism

تعداد نتایج: 1242621  

Journal: :PRX quantum 2021

We introduce a theoretical framework for resource-efficient characterization and control of non-Markovian open quantum systems, which naturally allows the integration given, experimentally motivated, capabilities constraints. This is achieved by developing transfer filter-function formalism based on general notion frame appropriately tying choice to available control. While recovering standard ...

Journal: :Progress of Theoretical and Experimental Physics 2019

Journal: :Journal of Physics: Conference Series 2010

خباز, سمانه, شکری, علی‌اصغر,

In this paper, spin-dependent electrical transport properties are investigated in a single-crystal magnetic tunnel junction (MTJ) which consists of two ferromagnetic Fe electrodes separated by an MgO insulating barrier. These properties contain electric current, spin polarization and tunnel magnetoresistance (TMR). For this purpose, spin-dependent Hamiltonian is described for Δ1 and Δ5 bands in...

H. Milani Moghaddam

In this study, Polyaniline molecule (emeraldine base) is modeled as a molecular wire and the effects of the metal/molecule coupling strength and the molecule length on the current-voltage (I-V) characteristics are numerically investigated. Using a tight-binding Hamiltonian model, the methods based on Non-equilibrium Green’s function theory, Landauer formalism and Newns-Anderson model, our calcu...

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