JosephsonCurrent.m File Reference

Example to calculate DC Josephson current through a one-dimensional chain. More...

Go to the source code of this file.

Functions
function	currentVSDeltaPhi ()
	Calculates the current using the predefined square lattice framework (Ribbon class) More...
function	currentVSDeltaPhi_TwoTerminal ()
	Calculates the current using custom Hamiltonians (see the documentation of classes NTerminal and Custom_Hamiltonians) More...
function	Hamiltonians (varargin)
	Function to create the custom Hamiltonians for the 1D chain. More...
function	JosephsonCurrent (filenum)
	Example to calculate DC Josephson current through a one-dimensional chain. More...
function	PlotFunction ()
	Creates the plot. More...
function	setOutputDir ()
	Sets output directory. More...

Detailed Description

Example to calculate DC Josephson current through a one-dimensional chain.

Parameters

filenum

The identification number of the filenema for the exported data (default is 1).

Reference

E. Perfetto, G. Stefanucci, and M. Cini, Equilibrium and time-dependent Josephson current in one-dimensional superconducting junctions, Phys. Rev. B 80, 205408 (2009)

Available

EQuUs v4.5 or later

Expected result

Definition in file JosephsonCurrent.m.

Function Documentation

currentVSDeltaPhi()

function currentVSDeltaPhi

(

)

Calculates the current using the predefined square lattice framework (Ribbon class)

currentVSDeltaPhi_TwoTerminal()

function currentVSDeltaPhi_TwoTerminal

(

)

Calculates the current using custom Hamiltonians (see the documentation of classes NTerminal and Custom_Hamiltonians)

Hamiltonians()

function Hamiltonians

(

varargin

)

Function to create the custom Hamiltonians for the 1D chain.

Parameters

varargin

Cell array of optional parameters identical to Custom_Hamiltonians.LoadHamiltonians.

Returns

[1] Cell array of Hamiltonians of one slab in the leads

[2] Cell array of overlap integrals of one slab in the leads

[3] Cell array of couplings between the slabs of the leads

[4] Cell array of overlap integrals between the slabs of the leads

[5] Cell array of transverse coupling between the unit cells of the lead

[6] Cell array of #coordinates of the leads

[7] Hamiltonian of the scattering region

[8] Overlap integrals of the scattering region

[9] Transverse coupling for the scattering region

[10] Overlap integrals for the transverse coupling in the scattering region

[11] #coordinates of the scattering region

[12] Cell array of couplings between the scattering region and the leads

[13] Cell array of overlap integrals between the scattering region and the leads

JosephsonCurrent()

function JosephsonCurrent

(

filenum

)

Example to calculate DC Josephson current through a one-dimensional chain.

Parameters

filenum

The identification number of the filenema for the exported data (default is 1).

PlotFunction()

function PlotFunction

(

)

Creates the plot.

setOutputDir()

function setOutputDir

(

)

Sets output directory.