Incorrect renormalisation of atom numbers in spinor cases

[wheelerMT]

Bug Report

Current Behavior
When using complex or purely imaginary time, the wavefunction is automatically renormalised by PyGPE. However, in spinor condensates this renormalisation is not implemented correctly.

Currently, each component is renormalised using the atom number of that component, rather than the total atom number of the system. This means that the atom numbers of the individual components always remains constant, and hence certain dynamics cannot occur, e.g., phase transitions,

Expected behavior/code
Correct normalisation of condensate components in spinor cases should occur.

Environment

• Python version(s): 3.12
• OS: MacOS Sequoia 15.1

Possible Solution
Apply the renormalisation using the overall atom number of the condensate.