Ginestra Bianconi
speaker
345 appearances
1 recordings
1 series
first heard Jul 2026
last heard 13 Jul
Ginestra Bianconi’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 1 in all, peaking in Jul 2026 with 1.
Appearances
Yes.
So, I mean, this aspect is very crucial because, you know, gravity from entropy action stems from this idea that you can treat the metric as quantum operator and practically write quantum relative entropy among them.
But it's still not in second quantization.
So the program is there and I'm still working on, you know...
even more high energy limit, right?
Because it could be that this is a theory.
Being classical, maybe it could be that, you know, if you really address the full second quantization aspect, you get still more effect.
Yes.
Yes, yes.
This is a group based in China.
They have started the challenging task to integrate this equation and they looked at this model and they showed that it might lead to inflationary behavior also in absence of a scholar field.
Yeah, but I mean, it's also interesting.
I mean, one of the prediction of the model, and this comes from my original paper, is actually that, you know, this modified gravity equation
are consistent with a dark energy term, which is a dynamical cosmological constant, which is always positive and vanishing in the low energy limit, but is dynamical and is expressed in terms of a new quantity, which I introduce, which is called the G-field, which is an emergent field of the theory.
which encode this interplane between structure and dynamics and is responsible for this dark energy term.
It's a bit like, you know, it's emerging mathematically as a Lagrangian multiplier of the theory, but we know that Lagrangian multiplier in statistical mechanics can have a physical meaning.
Like, for instance, the temperature is a Lagrangian multiplier of the energy and has a physical meaning.
In the same time, in the same way, you know, this G field that is emerging as a Lagrangian multiplier, we want to give a physical meaning to that.
And when we do that, you know, this action that it looks like the relative entropy is
when you express in terms of this G-field, becomes much closer to the Einstein action.
Showing 121–140 of 345 · page 7 of 18
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