Author Archive

A photon-atom interface at telecom wavelengths for quantum networks

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 A photon-atom interface at telecom wavelengths for quantum networks
Seminar

A photon-atom interface at telecom wavelengths for quantum networks

Date
Place
Pere Pascual V5.07 Room and via Zoom

Abstract: Enabling communication between quantum devices, such as clocks, computers, and simulators has the potential to significantly enhance the capabilities of their applications, such as quantum sensing and computing. The key to achieving this lies in establishing efficient communication channels among these quantum devices even over a long distance, which involves the exchange of qubits encoded in light at telecom wavelengths through optical fibers. In this context, I will present an overview of the new experiment that we are building in Florence, which focuses on interfacing single photons at telecom wavelengths with individual neutral ytterbium atoms trapped in optical tweezers. By leveraging the unique properties of the ytterbium clock state and its telecom transitions, our objective is to interface a long-lived ”matter” qubit and resonant light, including atom-resonant heralded single photons or photons forming entangled pairs. I will discuss the first developments, the motivation for exploring this research line and its impact as a crucial foundation for distributing entanglement between light and matter.

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Rethinking HEP workflows: Leveraging Differentiable Simulations and Open Datasets

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Rethinking HEP workflows: Leveraging Differentiable Simulations and Open Datasets
Seminar

Rethinking HEP workflows: Leveraging Differentiable Simulations and Open Datasets

Date
Place
Pere Pascual V5.07 Room

Abstract: HEP data analysis depends on high-fidelity detector simulators used to translate sensor-level information into physics variables of interest. In this seminar, I will discuss how differentiable simulations allow us to rethink traditional HEP workflows by making simulation parameters directly tuneable through gradient-based optimisation. I will introduce LUCiD, an end-to-end differentiable simulation framework for optical particle detectors. LUCiD matches the performance of established non-differentiable software for Super-Kamiokande while substantially simplifying traditional workflows and enabling new analysis strategies. Moreover, the principles behind LUCiD can be readily adapted to both Cherenkov and scintillation detectors across a wide range of scales, allowing the same framework to model experiments ranging from WCTE, IWCD, Super-Kamiokande, and Hyper-Kamiokande to JUNO and neutrino telescopes such as KM3NeT and IceCube.
The continued development of simulation and inference techniques also depends critically on well-documented public datasets that enable method development, reproducibility, and meaningful comparisons through common benchmarks. As an open-source framework, LUCiD can generate realistic simulated events across different detector technologies and experimental configurations. In the seminar, I will also discuss ongoing efforts to produce large-scale public datasets spanning unprecedented detector diversity and label richness, with the goal of fostering community-wide advances in detector calibration and event reconstruction.

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Citizens as political actors, not individual consumers: new study calls for tighter advertising regulations

Commercial marketing oriented toward sustainability is not compatible with degrowth, even when it promotes consuming less. That is the conclusion of a study by ICTA-UAB and the London School of Economics and Political Science.

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Quantum information as a guiding principle for fundamental interactions

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Quantum information as a guiding principle for fundamental interactions
Seminar

Quantum information as a guiding principle for fundamental interactions

Date
Place
Pere Pascual V5.07 Room

Abstract: What if the symmetries of nature are not inputs but outputs, emergent consequences of quantum information theory? In 2017, we showed that demanding maximal entanglement in high-energy scattering processes reproduces the structure of QED and places non-trivial constraints on the weak mixing angle, hinting at a deep connection between quantum information and the laws of particle physics. Since then, this program has grown into a vibrant field: entanglement extremization is now linked to the emergence of symmetries across QCD, the Higgs sector, and flavor physics, while novel quantum resources such as magic-state complexity are revealing new organizing patterns behind the Standard Model. Strikingly, these are no longer purely theoretical constructs: ATLAS and CMS have observed quantum entanglement in top-quark pairs at the LHC, Bell inequality violations have been detected in charmonium and B meson decays, and quantum magic in top quarks has been measured for the first time, turning particle colliders into quantum information laboratories. In this talk, I will survey this landscape and outline a research vision that combines quantum information theory, high-energy phenomenology, and quantum computing to ask: can the fundamental interactions emerge from information-theoretic first principles?

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Gravitational Wave Signatures of Primordial Black Holes

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Gravitational Wave Signatures of Primordial Black Holes
Seminar

Gravitational Wave Signatures of Primordial Black Holes

Date
Place
Pere Pascual V5.07 Room

Abstract: The existence of primordial black holes can be probed through the gravitational waves generated during their formation and subsequent evolution. In this talk, we will explore different frequency ranges and the corresponding experiments designed to test their existence. 

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New strategy boosts the performance of dye-sensitised solar cells

Researchers from the group of Prof. Emilio Palomares at ICIQ have developed a new strategy to improve the efficiency and stability of dye-sensitised solar cells (DSCs). The study, published in ACS Applied Materials & Interfaces, combines molecular engineering and electrolyte innovation to address some of the key limitations that have hindered the development of this solar technology. 

Unlike conventional silicon photovoltaic panels, dye-sensitised solar cells separate the functions of light absorption and charge transport. In these devices, light is absorbed by the dye molecules attached to the surface of a semiconductor material, typically titanium dioxide (TiO). When the dye absorbs light, it injects electrons into the semiconductor, generating an electrical current. The dye is then regenerated by a redox couple in the electrolyte, which completes the electrical cycle through the counter electrode. Because the dyes are responsible for harvesting light, and the electrolyte governs charge transport and regeneration, both components play a central role in determining the efficiency and stability of the device. 

To improve the performance of the solar cells, the researchers introduced modifications in two key areas of the device. First, they developed a new dye molecule, H15, designed to complement the light absorption properties of the existing sensitiser H4. H15 absorbs blue light around 410 nm and features a prolonged excited-state lifetime, helping the device capture a broader portion of the visible spectrum when combined with H4 while reducing charge recombination at the interface with the titania film. 

The second improvement was focused on the electrolyte composition. The team incorporated a hypervalent iodine(III) compound, 1-acetoxy-1,2-benziodoxol-3(1H)-one (IBA), into the cobalt-based electrolyte. The additive facilitates the charge transfer processes by accelerating the oxidation of the dye molecules and the generation of free radicals. In addition, its redox byproduct, 2-iodobenzoic acid (IA), suppresses charge recombination by coordinating with lithium ions and interacting with other electrolyte additives through halogen bonding. 

According to Prof. Emilio Palomares, “the work demonstrates how combining targeted molecular design of the dye with electrolyte engineering can  overcome some of the main bottlenecks affecting dye-sensitised solar cells, paving the way for more efficient and durable solar energy devices.” 

Dye-sensitised solar cells have attracted academic and commercial interest for decades as a low-cost photovoltaic technology. In recent years, cobalt-based electrolytes have renewed the interest in the field because they offer higher open-circuit voltages, lower corrosivity towards metals, and greater transparency in the visible-light region compared with traditional iodide/triiodide systems. However, achieving both high efficiency and long-term operational stability has remained a significant challenge. The new study provides further evidence that the combination of tailored dye design with interfacial and electrolyte engineering  addresses these limitations.

 

Reference publication

Synergistic Cosensitization and Redox-Triggered Interfacial Engineering for Efficient and Durable Solar Cells
Wu, H.; Marín Moncusí, L.; Perez Hernandez, J.; Martinez-Ferrero, E.; Palomares, E.
ACS Appl. Mater. Interfaces 2026, 18 (18), 26252–26262
DOI: 10.1021/acsami.6c01394

La entrada New strategy boosts the performance of dye-sensitised solar cells se publicó primero en ICIQ.

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Qilimanjaro contributes to new quantum computing milestone at BSC

Qilimanjaro Quantum Tech, the spin-off of IFAE, BSC and UB has contributed to the deployment at BSC of a system constituted by a new 35-qubit quantum computer, along with another 20-qubit quantum computer for uninterrupted operation, with Manel Martínez acting as Project Leader within the Qilimanjaro-GMV consortium.

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IFAE Communication Unit recognised as a UCC+I by FECYT

IFAE’s Communication Unit has received provisional recognition from FECYT as an official Unit of Scientific Culture and Innovation (UCC+I), acknowledging its work in science communication, outreach and education, and the collaborative efforts of IFAE research groups in bringing science closer to society.

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¿Por qué la neuromodulación afecta de forma diferente a cada persona?

¿Por qué la neuromodulación afecta de forma diferente a cada persona?
En un estudio realizado en el CIMCYC se exploró cómo la neuromodulación con estimulación magnética transcraneal aplicada en una región parietal del cerebro podía modular la capacidad atencional y por qué su efecto variaba en cada persona.
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Why Does Neuromodulation Affect Each Person Differently?

¿Por qué la neuromodulación afecta de forma diferente a cada persona?
A study conducted at CIMCYC explored how neuromodulation using transcranial magnetic stimulation applied to a parietal region of the brain could modulate our attention span.
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Protected: Crossing Dimensional Frontiers: a breakthrough in the shape of stable solutions to semilinear elliptic equations

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The post Protected: Crossing Dimensional Frontiers: a breakthrough in the shape of stable solutions to semilinear elliptic equations first appeared on Centre de Recerca Matemàtica.

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Guadalupe Sabio, premio Admirables de Diario Médico

Guadalupe Sabio (segunda por la derecha) recibe el premio Admirables 2026 de Diario Médico. /Cortesía Diario Médico

La investigadora Guadalupe Sabio, jefa del Grupo de Interacciones Metabólicas del Centro Nacional de Investigaciones Oncológicas (CNIO), es una de los galardonados en la VI edición de los Premios Admirables 2026, organizados por Diario Médico Correo Farmacéutico para reconocer la trayectoria y la labor diaria de profesionales e investigadores sanitarios. Sabio ha recibido el premio en la categoría de lnvestigación.

El galardón destaca el liderazgo internacional de Sabio en el estudio de los vínculos moleculares entre obesidad, metabolismo, enfermedad cardiovascular y cáncer. «Su investigación ha sido pionera en establecer el papel del tejido adiposo y del músculo como órganos endocrinos, identificando nuevas dianas terapéuticas con potencial clínico», señala Diario Médico.

El tejido adiposo —la grasa corporal— es un órgano endocrino: sus células secretan moléculas que viajan por la sangre y regulan el metabolismo de otros órganos. Cuando la grasa funciona bien, esas señales son beneficiosas; cuando se vuelve disfuncional, pueden desencadenar enfermedades.

Sabio coordina un gran proyecto internacional para investigar esta relación entre tejido graso y salud, financiado por el Consejo Europeo de Investigación (ERC, por sus siglas en inglés) con 10 millones de euros. El grupo del CNIO descifrará cómo la grasa se comunica con el resto del organismo.

Tres ‘Admirables’ en el CNIO

Los premios reconocen a 12 profesionales de la sanidad española en las categorías de Medicina, Farmacia, Enfermería e Investigación. Junto a Sabio han sido premiadas, en la misma categoría, María Belén Pérez González, subdirectora del Centro de Diagnóstico de Enfermedades Moleculares, experta en la investigación de patologías metabólicas hereditarias y enfermedades raras; y Susana Puig Sardá, directora del IDIBAPS y de Investigación del Hospital Clínic de Barcelona, líder en el estudio de melanoma y cáncer cutáneo.

En las dos ediciónes anteriores de los Premios Admirables han sido reconocidos, también en la categoría de Investigación, Manuel Valiente, jefe del Grupo de Metástasis Cerebral del CNIO, y Luis Álvarez-Vallina, jefe de la Unidad Clínica en Inmunoterapia del Cáncer Hospital del Mar-CNIO.

La entrada Guadalupe Sabio, premio Admirables de Diario Médico se publicó primero en CNIO.

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