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We are a research group at the National Distance University of Spain (UNED), based in Madrid.
Our research is focused on quantum complex systems, both from a fundamental and an applied viewpoint. Our interests range from entanglement theory to hydrogen fuel design.
Funding: We are funded by the Spanish Ministerio de Ciencia e Innovación, through its Agencia Estatal de Investigación, project COSY-QUEST (PID2019-105182GB-I00).
Researchers: José E. Alvarellos, Julio J. Fernández, Eva M. Fernández (PI), Elka Korutcheva and Javier Rodríguez-Laguna (PI).
Ph.D. students: Begoña Mula and José Vinaixa.
our research lines:
our research lines:
Nanoclusters
Nanoclusters
We characterize the physics of nanoaclusters, with special emphasis on their catalytical properties. The applications include hydrogen storage and CO catalysis.
Entanglement
Entanglement
One of the most intriguing features of the quantum world. We characterize the entanglement structure of condensed matter systems, with special interest in quantum phase transitions and the relation between entanglement and the geometry of space-time.
Thermoradiative cells
Thermoradiative cells
Can we use the heat discarded by industrial machinery, or the Earth itself? Surprisingly, the answer is yes. Thermoradiative cells can obtain work from waste heat in surprising ways.
Quantum engineering
Quantum engineering
We design synthetic quantum systems which possess certain desired properties, for future use in quantum technologies, such as quantum computation or quantum metrology. For example, atomic chains that change their shape under a magnetic field.
our articles:
our articles:
29. Universal fluctuations of global geometrical measurements in planar clusters, S.N. Santalla, I. Álvarez Domenech, D. Villarrubia, R. Cuerno, J. Rodríguez-Laguna, Phys. Rev. E 109, 034127 (2024).
28. Shape effects in the fluctuations of random isochrones on a square lattice, I. Álvarez Domenech, J. Rodríguez-Laguna, R. Cuerno, P. Córdoba-Torres, S.N. Santalla, Phys. Rev. E 109, 034014 (2024).
27. Adsorption of multiple NO molecules on Au10− and Au9Zn− planar clusters. A comparative DFT study, Eva M. Fernández, Luis C. Balbás, Phys. Chem. Chem. Phys. 25, 17176 (2023).
26. Long term behavior of the stirred vacuum on a Dirac chain: geometry blur and the random Slater ensemble, J. Vinaixa, B. Mula, A. Deaño, S.N. Santalla, J. Rodríguez-Laguna, JSTAT 013105 (2024).
25. Detailed analysis of the impact of internal heat leaks on the working properties of cold-carrier energy-emissive harvesters , J.J. Fernández, Physica Scripta, 98, 12 (2023).
24. Unified trade-off optimization of one-qubit Novikov heat engines, J.J. Fernández, European Physical Journal Plus, 138, 9 (2023).
23. Entanglement links and the quasiparticle picture, S.N. Santalla, G. Ramírez, S. Singha Roy, G. Sierra, J. Rodríguez-Laguna, Phys. Rev. B 107, L121114 (2023).
22. Energy production in one-qubit quantum Agrawal machines, J. J. Fernández, J. of Non-Equil. Thermodyn. 48, 303 (2023).
21. Ergotropy and entanglement in critical spin chains, Begoña Mula, Eva M. Fernández, José E. Alvarellos, Julio J. Fernández, David García-Aldea, Silvia N. Santalla, Javier Rodríguez-Laguna, Phys. Rev. B 107, 075116 (2023).
20. Optimization of energy production in two-qubit heat engines using the ecological function, Julio J. Fernández. Quantum Sci. Technol. 7 035002 (2022).
19. The role of electrochemical potentials of solid-state energy emissive harvesters, Julio J. Fernández, Heliyon. 8-10, e10853 (2022).
18. Depletion in fermionic chains with inhomogeneous hoppings, Begoña Mula, Nadir Samos Sáenz de Buruaga, Germán Sierra, Silvia N. Santalla, Javier Rodríguez-Laguna, Phys. Rev. B 106, 224204 (2022).
17. A Schelling extended model in networks: characterization of ghettos in Washington D.C., Diego Ortega, Elka Korutcheva, Axioms 11, 457 (2022).
16. Segregation in spatially structured cities, Diego Ortega, Javier Rodríguez-Laguna, Elka Korutcheva, Physica A 608, 128267 (2022).
15. Exotic correlation spread in free-fermionic states with initial patterns, Sudipto Singha Roy, Giovanni Ramírez, Silvia N. Santalla, Germán Sierra, Javier Rodríguez-Laguna, Phys. Rev. B 105, 214306 (2022).
14. Interactions of nitric oxide molecules with pure and oxidized silver clusters Agn±/AgnO± (n=11–13): A computational study, Eva M. Fernández, Luis Carlos Balbás, J. Chem. Phys. 157, 074310 (2022).
13. Statistical study of thermoradiative and photovoltaic cells based on a two-level model, Julio J. Fernández, Journal of Computational Electronics 21, 106 (2022).
12. Entanglement in non-critical inhomogeneous quantum chains, Nadir Samos Sáenz de Buruaga, Silvia N. Santalla, Javier Rodríguez-Laguna, Germán Sierra, Phys. Rev. B 104, 195147 (2021).
11. Effects of confinement and vaccination on an epidemic outburst: A statistical mechanics approach, Óscar Toledano, Begoña Mula, Silvia N. Santalla, Javier Rodríguez-Laguna, Óscar Gálvez, Physical Review E 104, 034310 (2021).
10. Random walkers on a deformable medium, Carlos Lajusticia-Costan, Silvia N, Santalla, Javier Rodríguez-Laguna, Elka Korutcheva, Journal of Statistical Mechanics: Theory and Experiment 073207 (2021).
9. Link representation of the entanglement entropies for all bipartitions, Sudipto Singha Roy, Silvia N. Santalla, Javier Rodríguez-Laguna, Germán Sierra, J. Phys. A: Math. Theor. 54, 305301 (2021).
8. Analysis of Irreversible Thermodynamic Losses in Emissive-Energy Harvesters Based on Photon Beams, Julio J. Fernández, IEEE Journal of Photovoltaics 11 (2) 437 (2021).
7. A Schelling model with a variable threshold in a closed city segregation model, Diego Ortega, Javier Rodríguez-Laguna, Elka Korutcheva, Physica A 574, 126010 (2021).
6. Avalanches in an extended Schelling model: An explanation of urban gentrification, Diego Ortega, Javier Rodríguez-Laguna, Elka Korutcheva, Physica A 573, 125943 (2021).
5. Bulk-edge correspondence in the Haldane phase of the bilinear-biquadratic spin-1 Hamiltonian, Sudipto Singha Roy, Silvia N. Santalla, Javier Rodríguez-Laguna, Germán Sierra, Journal of Statistical Mechanics: Theory and Experiment 053102 (2021).
4. Melting in two-dimensional systems: Characterizing continuous and first-order transitions, Óscar Toledano, Manuel Pancorbo, José Enrique Alvarellos, Óscar Gálvez, Physical Review B 103, 094107 (2021).
3. Casimir forces on deformed fermionic chains, Begoña Mula, Silvia N. Santalla, Javier Rodríguez-Laguna, Phys. Rev. Research 3, 013062 (2021).
2. Optimizing the spatial spread of a quantum walk, G. Martı́n-Vázquez, J. Rodríguez-Laguna, Phys. Rev. A 102, 022223 (2020).
1. Nanowire reconstruction under external magnetic fields, Eva M. Fernández, Silvia N. Santalla, José E. Alvarellos, Javier Rodríguez Laguna, J. Chem. Phys. 153, 244106 (2020).
Newsroom:
News at UNED web about our research on Casimir forces on curved space-time. (in Spanish, Feb. 25 2021).
PEOPLE:
PEOPLE:
José E. Alvarellos
Eva M. Fernández
Julio Fernández
Elka Korutcheva
Begoña Mula
Javier Rodríguez-Laguna
José Vinaixa
PHD THESES:
PHD THESES:
Begoña Mula Martín, Casimir forces, entanglement and conformal invariance in inhomogeneous quantum chains, Adv: J. Rodríguez-Laguna, S.N. Santalla. UNED, July 2023.
Diego Ortega Hernández, Análisis sociofísico de fenómenos urbanos de segregación, Adv: E. Korutcheva, J. Rodríguez-Laguna. UNED, May 2023.
Nadir Samos Sáenz de Buruaga, Entanglement in inhomogeneous quantum chains, Adv: J. Rodríguez-Laguna, G. Sierra. UAM, Apr 2022.
Ana Fernández del Río, Statistical modelling of in-game player behaviour, Adv: E. Korutcheva, Á. Periáñez. UNED, July 2021.
popular science:
popular science:
Talk about Quantum computing (Ateneo de Madrid, November 2020, in Spanish).
Talk about General relativity (Ateneo de Madrid, April 2021, in Spanish).
Article "¿Cuánto pesa mi sombra?", Celia González, Javier Rodríguez-Laguna, The Conversation, January 2022 (in Spanish).
Contact us:
Contact us:
Through email, either to emfernandez @ fisfun.uned.es or jrlaguna @ fisfun.uned.es.
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