[Kwant] Re: Current density for given lead currents

2024-05-06 Thread X.-X. Zhang
we need > to multiply by V (and the quantum of conductance) to get the current in the > linear response theory. > > This will give you, *qualitatively*, the current map in your system. > (I am interested to see the result) > > I hope this helps, > Adel > > On Wed, May 1, 2024

[Kwant] Current density for given lead currents

2024-05-01 Thread X.-X. Zhang
Hello Kwant community, I am considering a 6-terminal sample with 0,1,2,3 the voltage leads and 4,5 the current lead. Normally, with the conductance_matrix M found by kwant I can calculate transport properties (the voltages in vector V) as per the linear equation I = M V, given I =

[Kwant] Is Tkwant capable of simulating nonlinear optical responses

2023-07-16 Thread X.-X. Zhang
Hello Kwant community, The Kwant package deals with the (dc) linear response for tight-binding models while TKwant is time-dependent. But it is not obvious to me from the documentation whether TKwant is capable of simulating nonlinear responses (at finite frequencies). Instead of naively