The City and Science Biennial 2025 brings together some of the most influential figures in contemporary scientific thought, protagonists of a program that places Barcelona at the center of the debate on the quantum revolution and the role of science in today's society. Among the invited people we find internationally renowned physicists, architects, philosophers and popularizers who share the same vision: science as a space for dialogue between knowledge, culture and citizenship. Its conferences, workshops and conversations will allow the public to delve into the limits of physics, philosophy and art, and understand how frontier research redefines our vision of the world.

Carlo Rovelli 
Italian theoretical physicist and writer, Carlo Rovelli is one of the great voices of contemporary physics and an international reference for his theory of quantum gravity of loops. Author of books such as Seven Short Lessons in Physics or The Order of Time, Rovelli combines scientific rigor with profound philosophical reflection on the nature of time, reality and human perception.
Internationally awarded, he is an exceptional communicator who manages to convey the most complex concepts with clarity and poetry. At the Biennial, he will star in the session Art and Quantum Physics: A Possible Intertwining?, where he will discuss the connections between quantum physics and artistic creation with Blanca Pujals and Mercedes Martín Benito.

Blanca Pujals
Architect, filmmaker and PhD in Philosophy, Visual and Material Cultures, Blanca Pujals is one of the most original voices in contemporary thought on technoscientific infrastructures and the geopolitics of materials.
Member of the international group DMAMCM, together with thinkers such as Karen Barad and Denise Ferreira da Silva, she investigates how quantum physics can inspire new ways of understanding sociality and politics. At the Biennial, Pujals will share the stage with Carlo Rovelli in a conversation between Barcelona and Madrid that will unite science, philosophy and art to reflect on the “quantum loops” that connect matter and thought, and will also bring us the artistic installation: Quantum Sensing Infrastructures. Deep Underground Architectures for Spectral Matter.

Juan Ignacio Cirac
Juan Ignacio Cirac is one of the most renowned Spanish scientists in the world. Director of the Theoretical Division of the Max Planck Institute in Garching and collaborator of the Institute of Photonic Sciences (ICFO), he is a pioneer of quantum computing and its applications in communication and simulation of complex physical systems.
Cirac is the protagonist, together with the physicist and writer Sonia Fernández-Vidal, of the conversation The future is quantum: from Schrödinger's cat to quantum computers, and in Madrid What is the optics of quantum?, a meeting that combines dissemination, philosophy and imagination to bring quantum concepts closer to the public and discuss how this knowledge will transform our future.

Alyssa Ney
A philosopher of physics whose research focuses on the interpretation of quantum theories and the unity of science. She is a professor at the Chair of Metaphysics at the LMU (Ludwig-Maximilians-Universität) in Munich, and the author of “The World in the Wave Function” (Oxford, 2021), winner of the 2025 Suppes Prize of the American Philosophical Society, as well as “Metaphysics: an introduction” (Routledge, 2nd edition 2023) and “The Fundamentality of Physics” (Oxford, forthcoming). She holds degrees in both physics and philosophy and has been president of the Society for the Metaphysics of Science.
Ney will give a lecture entitled The Metaphysics of Quantum Mechanics: From Ghostly Action at a Distance to Higher Dimensions and Multiple Worlds and will participate in the roundtable Quantum Physics and Philosophy: Interferences, Superpositions, Entanglements.

Sonia Fernández-Vidal 
PhD in Physics from the Universitat Autònoma de Barcelona (UAB), researcher at leading centers such as CERN or ICFO, and author of the trilogy The Three Locks Door, Sonia Fernández-Vidal is one of the great popularizers of quantum science in our country.
In her conference The Future is Quantum: From Schrödinger's Cat to Quantum Computers, Fernández-Vidal will offer an exciting journey from the great enigmas of physics to the real applications that will define our century, with a direct and accessible style that fascinates both young and adults.

Jara Juana Bermejo Vega 
PhD in Quantum Computing and Ramón y Cajal researcher at the University of Granada, Jara Bermejo Vega represents a new generation of scientists who combine research, art and activism.
Founder of the inclusive conference Q-turn, she is a prominent voice for equality and diversity in science. At the Biennial she presents Quantum in a pole, an interdisciplinary performance that unites dance, pole dance and quantum physics to explore the links between body, knowledge and community. A proposal that challenges the border between stage and laboratory, science and emotion.

Jose Ignacio Latorre 
Director of the Center for Quantum Technologies in Singapore and founding partner of Qilimanjaro Quantum Tech, José Ignacio Latorre is one of the key figures in the development of quantum computing and artificial intelligence. Author of several books and documentaries, Latorre combines cutting-edge research with disclosure and ethical reflection on the role of technology. He will participate in the round table Building quantum research: witnesses of a revolution and in the session What is quantum physics?, where he will share his vision on the challenges and opportunities of this new scientific era.

Amy Ireland
Australian writer and theorist whose research explores gender and technology, as well as questions of human and machine agency in modernity. She is a member of the technomaterialist transfeminist collective Laboria Cuboniks, author of the manifesto Xenofeminism: A Politics for Alienation (2018), translated into 18 languages. In 2022, Holobionte published Philosophy-Fiction: Artificial Intelligence, hidden technology and the end of humanity, an anthology of her writings in Spanish. With Maya B. Kronic, she is co-author of Cute Accelerationism (Urbanomic, 2024) and more recently has co-edited the volume Machine Decision Is Not Final: China and the History and Future of Artificial Intelligence (Urbanomic, 2025), which combines theory and speculative fiction. 
She is one of the participants in the roundtable The Limits of Science: A Conversation on Artificial Intelligence and Quantum Computing.

Julio Rojas Guitérrez
Chilean writer and screenwriter, recognized as one of the most awarded authors in his country. He has worked on feature films, series and audio series for platforms such as Amazon, Apple, Spotify and Max (HBO). He is the author of the script for La vida de los peces, winner of the Goya Award, and for series such as El Refugio (Starz) and Familia de Medianoche (Apple TV+). His thriller BEACON (Max, 2024) and the audio series Caso 63 (awarded with the Ondas Award 2022 and the Rose d’Or 2024) have had great international success. In 2025 it has exceeded 50 million plays on Spotify. Other notable works include Simulacro (Ondas Award 2025) and Punto Rojo, Punto Azul (Audible, 2025).
At the Biennial he will offer a masterclass on Science Fiction Sound Fictions and will star in the conversation Quantum Narratives with Jorge Carrión Gálvez.

A Biennial with voices of international reference 
With these and other invited figures, the City and Science Biennial 2025 consolidates itself as the most relevant scientific dissemination event in Barcelona, and as a space where knowledge is shared from a plurality perspective. Physicists, architects, artists and thinkers provide complementary perspectives that place science at the center of culture, and make Barcelona a true city of science, open, reflective and diverse.