- Qtcg-info - Onsager

Recordatorio de seminario: Geometric foundations of thermodynamics in the quantum regime
by - -- 02 Dec '25

02 Dec '25

Desde el Grupo de Termodinámica y Computación Cuántica (QTCG) de la Universidad de Granada les invitamos al siguiente seminaro. ————————————————————— Date and time: Wednesday, December 3rd. 12:00. Place: Aula de Física Computacional. Área de Física de la Materia (Planta baja del edificio de Física). Facultad de Ciencias. Title: Geometric foundations of thermodynamics in the quantum regime Speaker: Álvaro Tejero, QTCG-UGR. Abstract: In this work, we present a comprehensive geometrical formulation of quantum thermodynamics based on contact geometry and principal fiber bundles. The quantum thermodynamic state space is modeled as a contact manifold, with equilibrium Gibbs states forming a Legendrian submanifold that encodes the fundamental thermodynamic relations. A principal fiber bundle over the manifold of density operators distinguishes the quantum state structure from thermodynamic labels: its fibers represent non-equilibrium configurations, and their unique intersections with the equilibrium submanifold enforce thermodynamic consistency. Quasistatic processes correspond to minimizing geodesics under the Bures-Wasserstein metric, leading to minimal dissipation, while the divergence of geodesic length toward rank-deficient states geometrically derives the third law. Non-equilibrium extensions, formulated through pseudo-Riemannian metrics and connections on the principal bundle, introduce curvature-induced holonomy that quantifies irreversibility in cyclic processes. In this framework, the thermodynamic laws in the quantum regime emerge naturally as geometric consequences. Reference: Á. Tejero, M. de la Rosa, Geometric foundations of thermodynamics in the quantum regime, arXiv:2511.10125 [math-ph] (2025) ————————————————————— Les recordamos que para estar informados de las actividades de nuestro grupo pueden suscribirse a nuestra lista de correo: https://onsager.ugr.es/mailman3/mailman3/lists/qtcg-info.onsager.ugr.es/ Atentamente, ————————————————————— Quantum Thermodynamics and Computation Group University of Granada https://ic1.ugr.es/members/qtc/

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Seminario: State Spaces, Quantum Search, and Chess: The Case of Explicit Spaces.
by - -- 01 Dec '25

01 Dec '25

Desde el Grupo de Termodinámica y Computación Cuántica (QTCG) de la Universidad de Granada les invitamos al siguiente seminaro. ————————————————————— Date and time: Thursday, December 4th. 12:00. Place: Aula de Física Computacional. Área de Física de la Materia (Planta baja del edificio de Física). Facultad de Ciencias. Title: State Spaces, Quantum Search, and Chess: The Case of Explicit Spaces. Speaker: Prof. Manuel Pegalajar. Departamento de Ciencias de la Computación e Inteligencia Artificial. UGR Abstract: Quantum Artificial Intelligence (QAI) has emerged strongly in recent years as a research area that blends the benefits of the quantum computing paradigm with Artificial Intelligence. In this seminar, we will address a classic AI problem: state space search, using a classical formulation that incorporates quantum computing tools for its resolution. Specifically, we will focus on problems that can be modeled as explicit graphs, such as certain chess puzzles. We will frame the resolution of these puzzles as search problems and use algorithms based on Grover's operator to solve them. ————————————————————— Les recordamos que para estar informados de las actividades de nuestro grupo pueden suscribirse a nuestra lista de correo: https://onsager.ugr.es/mailman3/mailman3/lists/qtcg-info.onsager.ugr.es/ Atentamente, ————————————————————— Quantum Thermodynamics and Computation Group University of Granada https://ic1.ugr.es/members/qtc/

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Seminar: Geometric foundations of thermodynamics in the quantum regime
by - -- 01 Dec '25

01 Dec '25

Desde el Grupo de Termodinámica y Computación Cuántica (QTCG) de la Universidad de Granada les invitamos al siguiente seminaro. ————————————————————— Date and time: Wednesday, December 3rd. 12:00. Place: Aula de Física Computacional. Área de Física de la Materia (Planta baja del edificio de Física). Facultad de Ciencias. Title: Geometric foundations of thermodynamics in the quantum regime Speaker: Álvaro Tejero, QTCG-UGR. Abstract: In this work, we present a comprehensive geometrical formulation of quantum thermodynamics based on contact geometry and principal fiber bundles. The quantum thermodynamic state space is modeled as a contact manifold, with equilibrium Gibbs states forming a Legendrian submanifold that encodes the fundamental thermodynamic relations. A principal fiber bundle over the manifold of density operators distinguishes the quantum state structure from thermodynamic labels: its fibers represent non-equilibrium configurations, and their unique intersections with the equilibrium submanifold enforce thermodynamic consistency. Quasistatic processes correspond to minimizing geodesics under the Bures-Wasserstein metric, leading to minimal dissipation, while the divergence of geodesic length toward rank-deficient states geometrically derives the third law. Non-equilibrium extensions, formulated through pseudo-Riemannian metrics and connections on the principal bundle, introduce curvature-induced holonomy that quantifies irreversibility in cyclic processes. In this framework, the thermodynamic laws in the quantum regime emerge naturally as geometric consequences. Reference: Á. Tejero, M. de la Rosa, Geometric foundations of thermodynamics in the quantum regime, arXiv:2511.10125 [math-ph] (2025) ————————————————————— Les recordamos que para estar informados de las actividades de nuestro grupo pueden suscribirse a nuestra lista de correo: https://onsager.ugr.es/mailman3/mailman3/lists/qtcg-info.onsager.ugr.es/ Atentamente, ————————————————————— Quantum Thermodynamics and Computation Group University of Granada https://ic1.ugr.es/members/qtc/

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#QUandALUS I Congreso de Tecnologías Cuánticas de Andalucía
by Daniel Manzano 28 Nov '25

28 Nov '25

FYI, https://quandalus.fidesol.org/#programa DM. Sent from my iPad

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Re: [Qtcg] [Quantum_spain_TalentQ] New TalentQ Seminar | December 2nd @4pm
by Daniel Manzano 26 Nov '25

26 Nov '25

I think the error is in the poster and you should trust the subject of the email: December 2nd. --------------------------------------------------------------------------------- Daniel Manzano Quantum Thermodynamics and Computation Group University of Granada Facultad de Ciencias, Av. Fuentenueva s/n Granada 18071, Spain Phone: +34 958241000 Ext: 20569 https://ic1.ugr.es/members/dmanzano/ > On 26.11.2025, at 14:11, Filipa Cavaco Peres <fcrperes(a)onsager.ugr.es> wrote: > > I am confused with the date. Is it 18? ou 28? > > Filipa > >> On 26 Nov 2025, at 10:26, Daniel Manzano <manzano(a)onsager.ugr.es> wrote: >> >> >> --------------------------------------------------------------------------------- >> Daniel Manzano >> Quantum Thermodynamics and Computation Group >> University of Granada >> Facultad de Ciencias, Av. Fuentenueva s/n >> Granada 18071, Spain >> Phone: +34 958241000 Ext: 20569 >> https://ic1.ugr.es/members/dmanzano/ >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >>> Begin forwarded message: >>> >>> From: INSUA PIÑEIRO ALBERTO <alberto.insua.pineiro(a)usc.es> >>> Subject: [Quantum_spain_TalentQ] New TalentQ Seminar | December 2nd @4pm >>> Date: 26. November 2025 at 10:16:18 CET >>> To: "quantum_spain_talentq(a)bsc.es" <quantum_spain_talentq(a)bsc.es> >>> >>> Speaker: Josu Etxezarreta >>> >>> Title: Advances in low-overhead quantum error correction >>> >>> Abstract: The extremely fragile nature of quantum information implies that quantum error correction (QEC) techniques are going to be necessary to obtain the full benefits that quantum computing offers theoretically. While QEC has been experimentally proven to be effective, it requires significant overheads that should be alleviated. In this talk, I will discuss our recent advances towards low-overhead quantum error correction. First, I will discuss how to leverage biased noise in technologies that do not allow for a bias-preserving >>> CNOT gate (arXiv:2505.17718). Our numerical results imply that up to a 75% qubit reduction can be achieved using the XZZX surface code. Second, quantum low-density parity-check (qLDPC) codes have been recently proposed as viable ways to reduce qubit footprints significantly, but they lack an efficient decoding algorithm. I will introduce our proposal, named Belief Propagation Ordered Tanner Forest (BP+OTF) decoding (arXiv:2409.01440). Numerical simulations show that the BP+OTF decoder achieves similar logical error suppression compared to state-of-the-art inversion-based and matching decoders for bivariate bicycle and surface codes, respectively, while maintaining almost-linear runtime complexity across all stages. >>> >>> Registration: >>> https://events.teams.microsoft.com/event/f7650729-b33d-4aca-9cd3-22f560ff38… >>> >>> >>> Alberto Insua Piñeiro >>> Content Creator - TalentQ >>> Galician Institute of High Energy Physics (IGFAE) >>> Tel. +34 698 15 44 56 >>> _______________________________________________ >>> Quantum_Spain_TalentQ mailing list -- quantum_spain_talentq(a)bsc.es <mailto:quantum_spain_talentq@bsc.es> >>> To unsubscribe send an email to quantum_spain_talentq-leave(a)bsc.es <mailto:quantum_spain_talentq-leave@bsc.es> >> <advances_in_low-overhead_quantum_error_correction_josu_etxezarreta.png> >> _______________________________________________ >> Qtcg mailing list -- qtcg(a)onsager.ugr.es >> To unsubscribe send an email to qtcg-leave(a)onsager.ugr.es >

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Fwd: [Quantum_spain_TalentQ] New TalentQ Seminar | December 2nd @4pm
by Daniel Manzano 26 Nov '25

26 Nov '25

--------------------------------------------------------------------------------- Daniel Manzano Quantum Thermodynamics and Computation Group University of Granada Facultad de Ciencias, Av. Fuentenueva s/n Granada 18071, Spain Phone: +34 958241000 Ext: 20569 https://ic1.ugr.es/members/dmanzano/ > Begin forwarded message: > > From: INSUA PIÑEIRO ALBERTO <alberto.insua.pineiro(a)usc.es> > Subject: [Quantum_spain_TalentQ] New TalentQ Seminar | December 2nd @4pm > Date: 26. November 2025 at 10:16:18 CET > To: "quantum_spain_talentq(a)bsc.es" <quantum_spain_talentq(a)bsc.es> > > Speaker: Josu Etxezarreta > > Title: Advances in low-overhead quantum error correction > > Abstract: The extremely fragile nature of quantum information implies that quantum error correction (QEC) techniques are going to be necessary to obtain the full benefits that quantum computing offers theoretically. While QEC has been experimentally proven to be effective, it requires significant overheads that should be alleviated. In this talk, I will discuss our recent advances towards low-overhead quantum error correction. First, I will discuss how to leverage biased noise in technologies that do not allow for a bias-preserving > CNOT gate (arXiv:2505.17718). Our numerical results imply that up to a 75% qubit reduction can be achieved using the XZZX surface code. Second, quantum low-density parity-check (qLDPC) codes have been recently proposed as viable ways to reduce qubit footprints significantly, but they lack an efficient decoding algorithm. I will introduce our proposal, named Belief Propagation Ordered Tanner Forest (BP+OTF) decoding (arXiv:2409.01440). Numerical simulations show that the BP+OTF decoder achieves similar logical error suppression compared to state-of-the-art inversion-based and matching decoders for bivariate bicycle and surface codes, respectively, while maintaining almost-linear runtime complexity across all stages. > > Registration: > https://events.teams.microsoft.com/event/f7650729-b33d-4aca-9cd3-22f560ff38… > > > Alberto Insua Piñeiro > Content Creator - TalentQ > Galician Institute of High Energy Physics (IGFAE) > Tel. +34 698 15 44 56 > _______________________________________________ > Quantum_Spain_TalentQ mailing list -- quantum_spain_talentq(a)bsc.es <mailto:quantum_spain_talentq@bsc.es> > To unsubscribe send an email to quantum_spain_talentq-leave(a)bsc.es <mailto:quantum_spain_talentq-leave@bsc.es>

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Fwd: WEBINAR ONLINE GRATUITO "Seguridad en la era cuántica" - Proyecto QUORUM (16 DE DICEMBRE 2025)
by Daniel Manzano 25 Nov '25

25 Nov '25

--------------------------------------------------------------------------------- Daniel Manzano Quantum Thermodynamics and Computation Group University of Granada Facultad de Ciencias, Av. Fuentenueva s/n Granada 18071, Spain Phone: +34 958241000 Ext: 20569 https://ic1.ugr.es/members/dmanzano/ > Begin forwarded message: > > From: Cristina Sierra López <cristina.sierra(a)itecam.com> > Subject: WEBINAR ONLINE GRATUITO "Seguridad en la era cuántica" - Proyecto QUORUM (16 DE DICEMBRE 2025) > Date: 25. November 2025 at 11:42:12 CET > > > > > Estimado amig@, > ¿Quieres adentrarte en la criptografía post-cuántica? Durante este webinar te mostraremos el panorama actual de la seguridad ante el desarrollo de la computación cuántica. El objetivo es conocer los puntos clave de la criptografía en la era cuántica, así como las diferentes formas de integrar algoritmos cuánticos en los sistemas de seguridad actuales. > En la sesión se abordarán los siguientes temas: > Estado actual de la seguridad en la era cuántica. > Qué es la criptografía post-cuántica y cuáles son sus funcionalidades. > Integración de algoritmos cuánticos en los sistemas de seguridad. > FECHA: 16 de diciembre de 2025. > HORA: de 09:00h a 11:00 horas. > ¡CONSULTA LA AGENDA E INSCRÍBETE! > Inscripción gratuita en el Webinar “Seguridad en la era cuántica” <https://www.formacionyempleoitecam.es/jornadas-y-webinars/quorum-seguridad-…> > > Puedes compartir esta invitación con todas aquellas personas que creas puedan estar interesadas. > > Próximos #webinars y jornadas: https://formaciononline.itecam.com/webinars/ > > ¡ÚNETE Y PARTICIPA! > > > > > > P ü Por favor, piense en el medio ambiente antes de imprimir este correo. > > Información sobre el tratamiento de sus datos personales de acuerdo con lo establecido en el Reglamento (UE) 2016/679 del Parlamento Europeo y del Consejo, de 27 de abril de 2016 > > Responsable: ITECAM- ASOCIACIÓN PARA LA INVESTIGACIÓN Y DESARROLLO TECNOLÓGICO DE LA INDUSTRIA DE CASTILLA-LA MANCHA / CIF: G13364666 - Ctra. Pedro Muñoz, km. 1, nave 58 – Tomelloso (Ciudad Real) > Finalidad: - Desarrollo de servicios y proyectos de I+D+i relacionados con nuestra actividad. > - Mantenerle informado por diversos medios de los servicios y actividad desarrollada por Itecam (mail, web, boletín, envío de información postal, etc) > Legitimación: Consentimiento de la persona interesada > Destinatarios: No se cederán datos a terceros, salvo obligación legal. > Derechos: Acceder, rectificar y suprimir los datos, así como otros derechos, como se explica en la información adicional. > Información adicional: Puede consultar la información adicional y detallada sobre Protección de Datos en nuestra web: http://www.itecam.com/es/legal/aviso-legal <https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fwww.itecam.com%2fes%2fle…> > > > >

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Bienal Ciudad y Ciencia en Madrid 18-23 Nov '25
by Daniel Manzano 14 Nov '25

14 Nov '25

https://www.circulobellasartes.com/humanidades/bienal-ciudad-y-ciencia-madr… Bienal Ciudad y Ciencia circulobellasartes.com --------------------------------------------------------------------------------- Daniel Manzano Quantum Thermodynamics and Computation Group University of Granada Facultad de Ciencias, Av. Fuentenueva s/n Granada 18071, Spain Phone: +34 958241000 Ext: 20569 https://ic1.ugr.es/members/dmanzano/

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Fwd: [qipc.spain] Quantum Hack at Madrid December 13th-14th
by Daniel Manzano 13 Nov '25

13 Nov '25

--------------------------------------------------------------------------------- Daniel Manzano Quantum Thermodynamics and Computation Group University of Granada Facultad de Ciencias, Av. Fuentenueva s/n Granada 18071, Spain Phone: +34 958241000 Ext: 20569 https://ic1.ugr.es/members/dmanzano/ > Begin forwarded message: > > From: Manuel García <manuelgpda(a)gmail.com> > Subject: [qipc.spain] Quantum Hack at Madrid December 13th-14th > Date: 13. November 2025 at 15:14:15 CET > To: qipc.spain(a)listas.csic.es > Reply-To: Manuel García <manuelgpda(a)gmail.com> > > Dear colleagues, > > At IQM together with Comunidad Autónoma de Madrid we launch a quantum hackathon initiative, kicking off in Madrid on December 13th-14th, 2025. The exact location will be Escuela Técnica Superior de Ingenieros Industriales. > > Participation is free of charge, and food is served. Participants have the chance to take home attractive prizes and quantum resources such as free credits. > This two-day, in-person event is a unique opportunity for students, early-career researchers, and developers to get hands-on experience with actual quantum computers via the IQM Resonance cloud platform. You’ll team up to solve the proposed challenges and compete with the rest of the teams. > The registration is open, and teams and individuals can sign up with this link: https://www.lyyti.fi/reg/QuantumHack25 <https://urldefense.com/v3/__https://www.lyyti.fi/reg/QuantumHack25__;!!D9dN…> > Learn more about Quantum Hack here: https://meetiqm.com/quantum-hack/ <https://urldefense.com/v3/__https://meetiqm.com/quantum-hack/__;!!D9dNQwwGX…> > Best regards, > Manu Algaba >

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Fwd: [quantum-foundations] Quantum Informatics CDT: Fully Funded PhD Positions Available (UK Based)
by Daniel Manzano 13 Nov '25

13 Nov '25

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