 ##  [Landauer-Büttiker Formalism](/index.php/landauer-buttiker-formalism) 

  ##  [Landauer-Büttiker Formalism](https://engineering.quantumdictionary.io/landauer-buttiker-formalism-0) 

  
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**Engineering &amp; Applied Technologies Dictionary**

 
Definition

A quantum transport framework that relates electrical conductance of phase-coherent mesoscopic conductors to the transmission probabilities of electronic scattering channels between reservoirs, yielding conductance as a sum over transmission eigenchannels (at zero temperature G = (2e^2/h) Σ_n T_n for spin-degenerate, two‑terminal coherent transport).

 
 ##  [Landauer-Büttiker Formalism](https://physics.quantumdictionary.io/landauer-buttiker-formalism-1) 

  
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- Natural &amp; Formal Sciences -

**Physics Dictionary**

 
Definition

A quantum transport framework that computes electrical (and thermal) currents from transmission and reflection probabilities of electronic modes through a finite conductor connected to macroscopic reservoirs; it treats reservoirs as thermalized particle baths with fixed chemical potentials and uses a scattering (S‑matrix) description so that, in linear low‑temperature limit, conductance is given b