Research

Comment on “A Post-Quantum Theory of Classical Gravity”

Sometime ago Jonathan Oppenheim, one of the brightest minds in the frontiers  of quantum information and quantum foundations, posted a very interesting article on arXiv. As is the custom these days, he announced the paper in a series of tweets, starting with: A post-quantum theory of classical gravity? https://t.co/uNbsbZ2AYq A consistent theory of classical gravity… Continue reading Comment on “A Post-Quantum Theory of Classical Gravity”

Research

Euler’s Theorem and the Smarr Relation

The area of a charged rotating (Kerr) black hole is given by \begin{equation} \label{eqn:kerr-area-relation} A = 4\pi \left[ 2 M^2 + 2 (M^4 – L^2 – M^2 Q^2)^{1/2} – Q^2 \right] \end{equation} This relation can be inverted to express the mass $M$ as a function of charge $Q$, area $A$ and angular momentum $L$: \begin{equation}… Continue reading Euler’s Theorem and the Smarr Relation

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Elementary particles and quantum geometry

Black holes are formed due to the gravitational collapse of matter – ordinary matter, consisting of the particles and excitations of the Standard Model that we know and love. These include electrons, photons, neutrinos, quarks, mesons etc, and their respective anti-particles. General Relativity tells us that the properties of (macroscopic) black holes are universal, in… Continue reading Elementary particles and quantum geometry