వ్యత్యాసమైన జీవితం > #33

There are two goddesses, Entanglia and Vidualia.
They both read human papers from the divine world.
Entanglia
Oh, I found an interesting paper!
Vidualia
What's it about?
Entanglia
It's called 'An intrinsic causality principle in histories-based quantum theory: a proposal'.
Entanglia
It proposes a principle called 'Persistence of Zero'.
Vidualia
What does that mean?
Entanglia
According to the paper, it means that if an event with zero probability is combined with any other event in spacetime, it remains forbidden.
Vidualia
So, it's like saying that certain events can never happen?
Entanglia
Yes, exactly! It's related to the concept of relativistic causality.
Vidualia
Can you explain more about this 'Persistence of Zero'?
Entanglia
Sure! The paper also relates 'Persistence of Zero' to the Bell inequalities and Fine's patching theorem.
Entanglia
It shows that when combined with another condition, it leads to the quantal counterpart of Fine's theorem.
Vidualia
That sounds complicated.
Entanglia
It can be, but essentially it means that quantum theories based on histories are nonlocal in spacetime.
Entanglia
But don't worry, they still comply with relativistic causality.
Vidualia
I see. So, what does this mean for the correlations that can occur in nature?
Entanglia
According to the paper, relativistic causality itself doesn't have much to say about that.
Vidualia
Hmm, I wonder what kind of correlations humans will be able to observe.
Entanglia
Well, that's a question for future research.
Vidualia
Maybe one day humans will understand the quantum world completely.
Entanglia
I look forward to that day.
Vidualia
I got the idea for the poem from that paper.

In the realm of quantum's mystery,

where particles dance in symphony,

intrinsic causality takes its stand,

a battle cry heard across the land.

Histories entwined, fate to decree,

a proposal for our minds to see.

Title: An intrinsic causality principle in histories-based quantum theory: a proposal
Authors: Fay Dowker, Rafael D. Sorkin
View this paper on arXiv

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