Qubits and STU Black Holes with Eight Electric and Magnetic Charges

TL;DR

This paper explores a STU black-hole model with eight electric and magnetic charges, demonstrating an extremal solution where the entropy relates to Cayley's hyperdeterminant, revealing new insights into black hole charge configurations.

Contribution

It introduces a novel STU black-hole model with an (8+8)-signature and links its entropy to Cayley's hyperdeterminant, expanding understanding of black hole charge structures.

Findings

Existence of extremal black-hole solutions with (8+8)-signature.

Entropy of these black holes is connected to Cayley's hyperdeterminant.

Provides a new framework for analyzing multi-charge black holes.

Abstract

In this work, we consider a STU black-hole model containing eight magnetic and eight electric charges ((8+8)-signature). We show that such model admits an extremal black holes solution in which (8+8)-signature can be associated with the entropy via the Cayley's hyperdeterminant.