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.

Trend

recordings per month · last 12 months

Recordings per month over the last 12 months — 1 in all, peaking in Jul 2026 with 1.

Appearances

newest first · ▶ plays the moment

Theories of Everything with Curt Jaimungal · Ginestra Bianconi: The Physicist Who (Unexpectedly) Derived Gravity From Entropy · 13 Jul 2026 podcast

And this is the metric induced by this field.

So the idea is in gravity from entropy is that there is not only a scalar,

But there is a higher order description of the matter field.

So you have at each point, you have a scalar, a one form and a two form.

And here the whole setting of differential geometry comes about that is very fundamental for this theory.

And then you define the metric induced by the matter field and curvature similarly as, you know, extending somehow Gauss from this fundamental form of Gauss.

And this is an expression of this metric used by the matter field and curvature is inspired by the literature in von Neumann algebra.

And, you know, there is a beautiful paper by Witten in Review Model Physics that discuss a closely related definition of entropy, which is, again, a relative entropy, which is called the Iraqi entropy.

von Neumann algebra as a very important measure for entanglement that can overcome the problems of entanglement entropy for quantum field theory that is ultraviolet divergent.

So the connection is not established fully, but it's been very important for the formulation of this theory for me.

And there are things to explore, whether, again, what is the connection between the gravity from entropy action and entanglement and the Iraqi entropy situation.

But the idea is that, yes, this action treats matter field and geometry on the same footing by geometrizing the matter field and the curvature.

And from this aspect, it's much more symmetric than the Einstein-Hilbert action plus the matter field, right?

Because the matter field, the matter action has only minimal coupling and there is no symmetric way of treating the two.

while in gravity from entropy, it's fully symmetric and you treat them on the same footing and interpret them in the light of their mutual information content relation.

And the beauty is that this action

leads to modified gravity equation.

So my lead to testable prediction that goes behind Einstein equation, but it reduced Einstein equation in the low energy limit.

So everything we know in the low energy limit remains valid.

But of course, the gravity from entropy equation of motion can be used to probe the high energy limit.

Showing 101–120 of 345 · page 6 of 18