Enabling definition of multiple noise channels and noise channels in XY

[a-corni]

• [x] Enables use of multiple noise channels in one simulation: Fixes #646. The constraint is simply deleted, and the collapse operators are now added - this is tested in a test.
• [x] Collapse operators in XY mode is enabled. Fixes #648
• [x] Minor changes in the documentation: it's weird and confusing that the page referencing collapse operators is called kraus_ops.html

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[HGSilveri]

This is starting to mix a fix and a feature :sweat_smile:

[a-corni]

This is starting to mix a fix and a feature 😅

I am stopping here ;) In a way it's a fix since everything was already there 😇 But yes I could make a separate PR with only the fix (SPAM in XY), and later merge this one with the rest that is more development, and merge it into develop

[a-corni]

@HGSilveri should I still handle kraus_ops.html (but redirecting it to the same notebook as effective_noise.html) ?

[HGSilveri]

@HGSilveri should I still handle kraus_ops.html (but redirecting it to the same notebook as effective_noise.html) ?

Isn't that done here already?

[a-corni]

@HGSilveri should I still handle kraus_ops.html (but redirecting it to the same notebook as effective_noise.html) ?

Isn't that done here already?

No I have only changed the name of the file 🙄 I will implement this then

[HGSilveri]

@HGSilveri should I still handle kraus_ops.html (but redirecting it to the same notebook as effective_noise.html) ?

Isn't that done here already?

No I have only changed the name of the file 🙄 I will implement this then

Then I think I don't get what you are referring to because I already see all the changes I thought were required

[a-corni]

@HGSilveri should I still handle kraus_ops.html (but redirecting it to the same notebook as effective_noise.html) ?

Isn't that done here already?

No I have only changed the name of the file 🙄 I will implement this then

Then I think I don't get what you are referring to because I already see all the changes I thought were required

Now I understand the confusion 😅 All done then