7 papers
Quantum solver for single-impurity Anderson models with particle-hole symmetry
Mariia Karabin, Tanvir Sohail, Dmytro Bykov +8
Quantum embedding methods, such as dynamical mean-field theory (DMFT), provide a powerful framework for investigating strongly correlated materials. A central computational bottlen…
Between equilibrium and fluctuation: Einstein's heuristic argument and Boltzmann's principle
Enric Pérez, Antonio Gil
We critically revisit Einstein's 1905 heuristic argument for lightquanta, considering its internal coherence and the scope of its applicability. We argue that Einstein's reasoning,…
Compressed BC-LISTA via Low-Rank Convolutional Decomposition
Han Wang, Yhonatan Kvich, Eduardo Pérez +2
We study Sparse Signal Recovery (SSR) methods for multichannel imaging with compressed {forward and backward} operators that preserve reconstruction accuracy. We propose a Compress…
Exploring the impacts of demand scenarios, weather variability and mitigation of emissions on Morocco's hydrogen market and renewable transition pathways
EstefanÃa Duque Pérez, Lukas Jansen, Benedikt Haeckner
The global demand for green hydrogen and its derivatives is growing rapidly as a cornerstone for decarbonizing hard-to-abate sectors. Morocco, endowed with abundant solar and wind…
Blurred orbits and blurred particles: Heisenberg's 1926 helium atom
G. Gimeno, M. Xipell, Enric Pérez
This work analyses the extent to which the "blurred orbits" of the current model for the atom, drafted by Heisenberg in 1926, fits the image of a bunch of wandering electrons aroun…
Beyond diagnostic-diagrams: A critical exploration on the classification of ionization processes
S. F. Sánchez, C. Muñoz-Tuñón, J. Sánchez Almeida +2
Optical emission-line diagnostic diagrams, such as the classical BPT, are widely used to identify ionisation mechanisms in galaxies but often suffer from degeneracies, especially w…