kwant.system.SiteArray

class kwant.system.SiteArray(family, tags)

Bases: collections.abc.Sequence

An array of sites, members of a SiteFamily.

Parameters

• family (an instance of SiteFamily) – The ‘type’ of the sites.

• tags (a sequence of python objects) – Sequence of unique identifiers of the sites within the site array family, typically vectors of integers.

Raises

ValueError – If tags are not proper tags for family.

See also

kwant.system.Site

Methods

count(value) → integer – return number of occurrences of value

index(value[, start[, stop]]) → integer – return first index of value.

Raises ValueError if the value is not present.

Supporting start and stop arguments is optional, but recommended.

positions()

Real space position of the site.

This relies on family having a pos method (see SiteFamily).