How to get the list of the authenticated users?

I would like to display the list of the authenticated users.

On the documentation: http://docs.djangoproject.com/en/dev/topics/auth/

class models.User
is_authenticated()¶
Always returns True. This is a way to tell if the user has been authenticated. ...

You can know on the template side is the current User is authenticated or not:

{% if user.is_authenticated %} {% endif %}

But I didn't found the way the get the list of the authenticated users.

Any idea?