نتایج جستجو برای: quantum transport

تعداد نتایج: 558118  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم پایه 1391

a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose...

2017

In conventional electronic devices such as field-effect transistors (FETs) or diodes, the size of the device is usually quite large, so that the wave nature of the electron or its discrete charge do not influence the behavior of the device. Furthermore, all individual components of these devices are of a size much larger than an individual atom. However, with the continuous shrinking of integra...

1998
William R. Frensley N. G. Einspruch

IV Far-From-Equilibrium Transport 15 1 Mixed States and Distribution Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2 Irreversible Processes and Master Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.1 The Boltzmann Equation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2.2 Numerical Evaluation Methods . . . . . . . . . . . . ....

Journal: :Annales Henri Poincaré 2021

We propose a new generalization to quantum states of the Wasserstein distance, which is fundamental distance between probability distributions given by minimization transport cost. Our proposal first where plans are in natural correspondence with channels, such that can be interpreted as physical operation on system. main result proof modified triangle inequality for our distance. also prove st...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده برق و کامپیوتر 1392

abstract nowadaysphotovoltaic solar cells (pvs) areacknowledged the fastest growing energy technology in the word, however, they only account for only fraction of current global renewable energy capacity. it isrecognized that this incomplete market penetration has been largely a result of the technology’sexcessive cost. so researchers are trying to find innovative, economic way with theaim of ...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2009
P Kleinert

Based on the nonequilibrium Green's function technique, a unified theory is developed that covers quantum transport and quantum diffusion in bulk semiconductors on the same footing. This approach, which is applicable to transport via extended and localized states, extends previous semiphenomenological studies and puts them on a firm microscopic basis. The approach is sufficiently general and ap...

2015
Gabor Vattay Istvan Csabai

One of the new discoveries in quantum biology is the role of Environment Assisted Quantum Transport (ENAQT) in excitonic transport processes. In disordered quantum systems transport is most efficient when the environment just destroys quantum interferences responsible for localization, but the coupling does not drive the system to fully classical thermal diffusion yet. This poised realm between...

Journal: :Physical review letters 2009
Gerardo A Paz-Silva Stojan Rebić Jason Twamley Tim Duty

A globally controlled scheme for quantum transport is proposed. The scheme works on a 1D chain of nearest neighbor coupled systems of qudits (finite dimension), or qunats (continuous variable), taking any arbitrary initial quantum state of the chain and producing a final quantum state, which is perfectly spatially mirrored about the midpoint of the chain. As a particular novel application, the ...

Graphene is determined by a wonderful carrier transport property and high sensitivityat the surface of a single molecule, making them great as resources used in Nano electronic use.TGN is modeled in form of three honeycomb lattices with pairs of in-equivalent sites as {A1, B1},{A2, B2}, and {A3, B3} which are located in the top, center and bottom layers, respectively. Trilayer...

Journal: :Nano letters 2009
Kathryn Todd Hung-Tao Chou Sami Amasha David Goldhaber-Gordon

Graphene nanoribbons display an imperfectly understood transport gap. We measure transport through nanoribbon devices of several lengths. In long (>/=250 nm) nanoribbons we observe transport through multiple quantum dots in series, while shorter (</=60 nm) constrictions display behavior characteristic of single and double quantum dots. New measurements indicate that dot size may scale with cons...

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