259 citations · 1.3k across the 48 of their papers we have counts for
49 papers
Non-invertible symmetries and selection rules for RG flows of coset models
Valentin Benedetti, Paul Fendley, Javier M. Magan
We analyze superselection sectors, non-invertible symmetries and selection rules for RG flows triggered via perturbations of a UV two-dimensional conformal field theory (CFT).…
Quantum microstate counting from Brownian motion: from many-body systems to black holes
Enzo Bavaro, Javier M. Magan, Leandro Martinek
We introduce a new way to produce infinite families of bases of a quantum system's Hilbert space, as well as methods to find its dimension. These families are constructed via Brown…
A generalization of the DHR theorem for higher form symmetries
Horacio Casini, Javier M. Magan
The Doplicher-Haag-Roberts (DHR) reconstruction theorem shows that standard (-form) internal symmetries are associated to groups in relativistic quantum field theory in spacetim…
ER for typical EPR
Javier M. Magan, Martin Sasieta, Brian Swingle
What do the typical entangled states of two black holes look like? Do they contain semiclassical interiors? We approach these questions constructively, providing ensembles of state…
Spread complexity and the saturation of wormhole size
Vijay Balasubramanian, Javier M. Magan, Poulami Nandi +1
Recent proposals equate the size of Einstein-Rosen bridges in JT gravity to spread complexity of a dual, double-scaled SYK theory (DSSYK). We show that the auxiliary ``chord basis'…
Selection rules for RG flows of minimal models
Valentin Benedetti, Horacio Casini, Javier M. Magan
Minimal d=2 CFTs are usually classified through modular invariant partition functions. There is a finer classification of ``non complete'' models when S-duality is not imposed. We…
Random Circuits in the Black Hole Interior
Javier M. Magan, Martin Sasieta, Brian Swingle
In this paper, we present a quantitative holographic relation between a microscopic measure of randomness and the geometric length of the wormhole in the black hole interior. To th…
Two types of quantum chaos: testing the limits of the Bohigas-Giannoni-Schmit conjecture
Javier M. Magan, Qingyue Wu
There are two types of quantum chaos: eigenbasis chaos and spectral chaos. The first type controls the early-time physics, e.g. the thermal relaxation and the sensitivity of the sy…
Universal Construction of Black Hole Microstates
Ana Climent, Roberto Emparan, Javier M. Magan +2
We refine and extend a recent construction of sets of black hole microstates with semiclassical interiors that span a Hilbert space of dimension , where is the black hole…
Quantum chaos, integrability, and late times in the Krylov basis
Vijay Balasubramanian, Javier M. Magan, Qingyue Wu
Quantum chaotic systems are conjectured to display a spectrum whose fine-grained features (gaps and correlations) are well described by Random Matrix Theory (RMT). We propose and d…
Tearing down spacetime with quantum disentanglement
Roberto Emparan, Javier M. Magan
A longstanding enigma within AdS/CFT concerns the entanglement entropy of holographic quantum fields in Rindler space. The vacuum of a quantum field in Minkowski spacetime can be v…
ABJ anomaly as a U(1) symmetry and Noether's theorem
Valentin Benedetti, Horacio Casini, Javier M. Magan
The Adler-Bell-Jackiw anomaly determines the violation of chiral symmetry when massless fermions are coupled to an abelian gauge field. In its seminal paper, Adler noticed that a m…
Krylov complexity of modular Hamiltonian evolution
Pawel Caputa, Javier M. Magan, Dimitrios Patramanis +1
We investigate the complexity of states and operators evolved with the modular Hamiltonian by using the Krylov basis. In the first part, we formulate the problem for states and ana…
Generalized Symmetries For Generalized Gravitons
Valentin Benedetti, Pablo Bueno, Javier M. Magan
We construct generalized symmetries for linearized Einstein gravity in arbitrary dimensions. First-principle considerations in QFT force generalized symmetries to appear in dual pa…
Charges in the UV completion of neutral electrodynamics
Valentin Benedetti, Horacio Casini, Javier M. Magan
A theory with a non-compact form-symmetry is described by two closed form fields of degrees k and d-k. Effective theory examples are non-linear electrodynamics, a photon field coup…
Microscopic origin of the entropy of astrophysical black holes
Vijay Balasubramanian, Albion Lawrence, Javier M. Magan +1
We construct an infinite family of microstates for black holes in Minkowski spacetime which have effective semiclassical descriptions in terms of collapsing dust shells in the blac…
Microscopic origin of the entropy of black holes in general relativity
Vijay Balasubramanian, Albion Lawrence, Javier M. Magan +1
We construct an infinite family of microstates with geometric interiors for eternal black holes in general relativity with negative cosmological constant in any dimension. Wormhole…
A Tale of Two Hungarians: Tridiagonalizing Random Matrices
Vijay Balasubramanian, Javier M. Magan, Qingyue Wu
The Hungarian physicist Eugene Wigner introduced random matrix models in physics to describe the energy spectra of atomic nuclei. As such, the main goal of Random Matrix Theory (RM…
Generalized symmetries and Noether's theorem in QFT
Valentin Benedetti, Horacio Casini, Javier M. Magan
We show that generalized symmetries cannot be charged under a continuous global symmetry having a Noether current. Further, only non-compact generalized symmetries can be charged u…
Quantum chaos and the complexity of spread of states
Vijay Balasubramanian, Pawel Caputa, Javier Magan +1
We propose a measure of quantum state complexity defined by minimizing the spread of the wave-function over all choices of basis. Our measure is controlled by the "survival amplitu…
Generalized Symmetries of the Graviton
Valentin Benedetti, Horacio Casini, Javier M. Magan
We find the set of generalized symmetries associated with the free graviton theory in four dimensions. These are generated by gauge invariant topological operators that violate Haa…
Proof of the universal density of charged states in QFT
Javier M. Magan
We prove a recent conjecture by Harlow and Ooguri concerning a universal formula for the charged density of states in QFT at high energies for global symmetries associated with fin…
On completeness and generalized symmetries in quantum field theory
Horacio Casini, Javier M. Magan
We review a notion of completeness in QFT arising from the analysis of basic properties of the set of operator algebras attached to regions. In words, this completeness asserts tha…
Geometry of Krylov Complexity
Pawel Caputa, Javier M. Magan, Dimitrios Patramanis
We develop a geometric approach to operator growth and Krylov complexity in many-body quantum systems governed by symmetries. We start by showing a direct link between a unitary ev…