output
19992026
most citedFormation of a Nematic Fluid at High Fields in Sr3Ru2O7

436 citations

219 papers

gr-qc2026

Cosmological properties of black-hole hair in the linearly coupled scalar-Gauss-Bonnet theory

Dražen Glavan, Darío Jaramillo-Garrido

We investigate the superhorizon behavior of scalar hair sourced by black holes in de Sitter spacetime in the linearly coupled shift-symmetric scalar-Gauss-Bonnet theory. Working in…

quant-ph2026

Is the matrix completion of reduced density matrices unique?

Gustavo E. Massaccesi, Ofelia B. Oña, Luis Lain +4

Reduced density matrices are central to describing observables in many-body quantum systems. In electronic structure theory, the two-particle reduced density matrix (2-RDM) suffice…

quant-ph2026★ 1 cited

Determining the ensemble N-representability of Reduced Density Matrices

Ofelia B. Oña, Gustavo E. Massaccesi, Pablo Capuzzi +5

The N-representability problem for reduced density matrices remains a fundamental challenge in electronic structure theory. Following our previous work that employs a unitary-evolu…

hep-ph2025

High-energy photons from Gamma-Ray Bursts, but no neutrinos

A. De Rújula

The Cannon-Ball model of Gamma-Ray Bursts and their afterglows--described in the text and in innumerable previous occasions--is extremely successful and predictive. In a few intrin…

quant-ph2025★ 5 cited

Determining the N-representability of a reduced density matrix via unitary evolution and stochastic sampling

Gustavo. E. Massaccesi, Ofelia. B. Oña, Pablo Capuzzi +6

The N-representability problem consists in determining whether, for a given p-body matrix, there exists at least one N-body density matrix from which the p-body matrix can be obtai…

quant-ph2025★ 2 cited

Statistics of the Random Matrix Spectral Form Factor

Alex Altland, Francisco Divi, Tobias Micklitz +2

The spectral form factor of random matrix theory plays a key role in the description of disordered and chaotic quantum systems. While its moments are known to be approximately Gaus…

quant-ph2025

Oddities in the Entanglement Scaling of the Quantum Six-Vertex Model

Sunny Pradhan, Jesús Cobos, Enrique Rico +1

We investigate the entanglement properties of the Quantum Six-Vertex Model on a cylinder, focusing on the Shannon-Renyi entropy in the limit of Renyi order . This entro…

hep-ph2024★ 5 cited

Probing a diffuse flux of axion-like particles from galactic supernovae with neutrino water Cherenkov detectors

David Alonso-González, David Cerdeño, Marina Cermeño +1

In this article, we claim that axion-like particles (ALPs) with MeV masses can be produced with semi-relativistic velocities in core-collapse supernovae (SNe), generating a diffuse…

hep-th2024★ 36 cited

Krylov complexity as an order parameter for quantum chaotic-integrable transitions

Matteo Baggioli, Kyoung-Bum Huh, Hyun-Sik Jeong +2

Krylov complexity has recently emerged as a new paradigm to characterize quantum chaos in many-body systems. However, which features of Krylov complexity are prerogative of quantum…

quant-ph2024★ 7 cited

On the Raleigh-Ritz variational method. Non-orthogonal basis set

Francisco M. Fernández

We overview the main equations of the Rayleigh-Ritz variational method and discuss their connection with the problem of simultaneous diagonalization of two Hermitian matrices.

cond-mat.mes-hall2024★ 17 cited

Fluorescent Graphene Quantum Dots-Enhanced Machine Learning for Accurate Detection and Quantification of Hg2+ and Fe3+ in Real Water Samples

Mauricio Llaver, Santiago Daniel Barrionuevo, Jorge Martín Nuñez +4

Selective, accurate, fast, and with minimal usage of instrumentation has become paramount nowadays in areas of environmental monitoring. Here, we chemically modified fluorescent gr…

quant-ph2024★ 4 cited

Maximal Clauser-Horne-Shimony-Holt violation for qubit-qudit states

Alexander Bernal, J. Alberto Casas, Jesus M. Moreno

We evaluate the maximal Clauser-Horne-Shimony-Holt (CHSH) violation for a generic (typically mixed) qubit-qudit state, obtaining easily computable expressions in arbitrary qudit di…

cond-mat.mes-hall2024★ 10 cited

Stacking-Configuration-Preserved Graphene Quantum Dots Electrochemically Obtained from CVD Graphene

Santiago D. Barrionuevo, Federico Fioravanti, Jorge M. Nuñez +5

The layer stacking morphology in nanocarbons is paramount for achieving new properties and outperforming applications. Here, we demonstrate that graphene quantum dots (GQDs) retain…

quant-ph2024

On the eigenvalues of the harmonic oscillator with a Gaussian perturbation

Paolo Amore, Francisco M. Fernández, Javier Garcia

We test the analytical expressions for the first two eigenvalues of the harmonic oscillator with a Gaussian perturbation proposed recently. Our numerical eigenvalues show that thos…

astro-ph.CO2024

Predicting large scale cosmological structure evolution with generative adversarial network-based autoencoders

Marion Ullmo, Nabila Aghanim, Aurélien Decelle +1

Predicting the nonlinear evolution of cosmic structure from initial conditions is typically approached using Lagrangian, particle-based methods. These techniques excel in terms of…

hep-th2024★ 10 cited

Categorical-Symmetry Resolved Entanglement in CFT

P. Saura-Bastida, A. Das, G. Sierra +1

We propose a symmetry resolution of entanglement for categorical non-invertible symmetries (CaT-SREE) in (1 + 1)-dimensional CFTs. The definition parallels that of group-like inver…

quant-ph2023★ 3 cited

Photonic implementation of the quantum Morra game

Andres Ulibarrena, Alejandro Sopena, Russell Brooks +4

In this paper, we study a faithful translation of a two-player quantum Morra game, which builds on previous work by including the classical game as a special case. We propose a nat…

cond-mat.mes-hall2023★ 13 cited

Efficient generation of highly crystalline carbon quantum dots via electrooxidation of ethanol for rapid photodegradation of organic dyes

Santiago D. Barrionuevo, Federico Fioravanti, Jorge M. Nuñez +5

Achieving versatile routes to generate crystalline carbon-based nanostructures has become a fervent pursuit in photocatalysis-related fields. We demonstrate that the direct electro…

hep-ph2023★ 15 cited

Quantum tomography of helicity states for general scattering processes

Alexander Bernal

Quantum tomography has become an indispensable tool in order to compute the density matrix of quantum systems in Physics. Recently, it has further gained importance as a basic…

physics.chem-ph2023★ 1 cited

Advantages of multi-dimensional biasing in accelerated dynamics: application to the calculation of the acid for acetic acid

Jiasen Guo, Alberto Albesa, Carlos Wexler

The use of accelerated sampling methods such as metadynamics has shown significant advantage in calculations that involve infrequent events, which would otherwise require sampling…

quant-ph2022

On the effective secular equation

Francisco M. Fernández

We show that the effective secular equation proposed several years ago is suitable for estimating the location of the exceptional points of eigenvalue equations. As an illustrative…

quant-ph2022

Comment on: "On the characteristic polynomial of an effective Hamiltonian"

Francisco M. Fernández

We show that a method proposed recently, based on the characteristic polynomial of an effective Hamiltonian, had been developed several years earlier by other authors in a clearer…

quant-ph2022★ 2 cited

Algebraic analysis of non-Hermitian quadratic Hamiltonians

Francisco M. Fernández

We study a general one-mode non-Hermitian quadratic Hamiltonian that does not exhibit -symmetry. By means of an algebraic method we determine the conditions for the e…

cond-mat.mtrl-sci2022

About the effects of rotation on the Landau levels in an elastic medium with a spiral dislocation

Paolo Amore, Francisco M. Fernández

In this Paper we analyze a model proposed recently with the purpose of studying the effects of rotation on the interaction of a point charge with a uniform magnetic field in an ela…