Tool: nextnano++
 Tool: nextnano³

 Download | SearchCopyright | Publications
 * password protected


nextnano³ software


  Quantum bound states





(1D only)

Finds out all eigenfunctions which are localized within a certain region where one expects bound states for example. The quantum states are specified by a certain threshold fraction of psi within the region [x-left; x-right]. This is necessary for large quantum regions which extend far beyond the region of interest and therefore have many irrelevant eigenstates.

$quantum-bound-states                                 optional !
 set-number                         integer           required !
 quantum-region                     integer           optional !
 num-schroedinger-equation          integer           optional !
 charge                             character         optional !
 x-left                             double            optional !
 x-right                            double            optional !
 threshold                          double            optional !
$end_quantum-bound-states                             optional !


set-number = 1

Number to distinguish different sets of localized states, has to be in ascending order.


quantum-region = 1

Number of quantum region in which to look for localized states.


num-schroedinger-equation =1 

Number of Schrödinger equation in which to look for localized states.


charge = el / hl

Flag whether electrons or holes are regarded.


x-left = 124d0

Left boundary of localization region.


x-right = 124d0

Right boundary of localization region.


threshold = 0.6d0

Minimum fraction of amplitude squared of certain eigenstate within [x-left;x-right] to be regarded as localized state.

If you need support, or input files that are not included in the installation folder, or if you have suggestions on how we can improve our website or tutorials, please submit a Support Ticket.