September 2024 - Quthco

Fwd: [qipc.spain] Calling all early-stage researchers in Quantum Tech in Spain!
by Daniel Manzano 24 Sep '24

24 Sep '24

--------------------------------------------------------------------------------- Daniel Manzano Quantum Thermodynamics and Quantum 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: "PYSQT organization" (via qipc.spain Mailing List) <qipc.spain(a)listas.csic.es> > Subject: [qipc.spain] Calling all early-stage researchers in Quantum Tech in Spain! > Date: 24. September 2024 at 10:36:01 CEST > To: qipc.spain(a)listas.csic.es > Reply-To: PYSQT organization <pysqt.organization(a)gmail.com> > > Hello everyone! > > As you may know, PYSQT is the Ph.D. and Young Scientists in Quantum Technologies Network in Spain. It is an initiative to promote online and in-person activities where early-stage scientists, such as Ph.D. students and young postdocs (first/second year), can meet and discuss their work. The purpose of this email is to remind you of all the ways you can contribute to the development of this network. > > Through this form <https://urldefense.com/v3/__https://t.co/9xwJEK7a4y__;!!D9dNQwwGXtA!QapVNxS…>, you may > > (i) propose seminars about your work or other colleague's research. > > (ii) request the organization of a colloquium on a specific topic. > > (iii) propose new networking events. > > Let's connect and collaborate! > > Best regards, > PYSQT Network

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Lunch on Thursday
by Daniel Manzano 23 Sep '24

23 Sep '24

Dear all, just a reminder that on Thursday we’re planning to go for lunch. Alvaro is looking for a place that fits all dietary requirement for the people of the group. Tell him if you have any allergies or preferences. Best, --------------------------------------------------------------------------------- Daniel Manzano Quantum Thermodynamics and Quantum 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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SEMINAR: Paula García-Molina (Instituto de Física Fundamental - CSIC)
by Michalis Skotiniotis 23 Sep '24

23 Sep '24

El grupo de Termodinámica y Computación Cuántica les invita al siguiente seminario Fecha: Viernes 27/9/2024 Hora: 11:00 am Lugar: Laboratorio de Fïsica Computacional, Dept de Electromagnetismo y Física de al Materia, Planta Baja, Facultad de Ciencias (junto al péndulo gigante) Ponente: Paula García-Molina (Instituto de Física Fundamental - CSIC) Titulo: Pseudospectral method for solving PDEs using Matrix Product States (arXiv:2409.02916) Resumen: This research focuses on solving time-dependent partial differential equations (PDEs), in particular the time-dependent Schrödinger equation, using matrix product states (MPS). We propose an extension of Hermite Distributed Approximating Functionals (HDAF) to MPS, a highly accurate pseudospectral method for approximating functions of derivatives. Integrating HDAF into an MPS finite precision algebra, we test four types of quantum-inspired algorithms for time evolution: explicit Runge-Kutta methods, Crank-Nicolson method, explicitly restarted Arnoli iteration and split-step. The benchmark problem is the expansion of a particle in a quantum quench, characterized by a rapid increase in space requirements, where HDAF surpasses traditional finite difference methods in accuracy with a comparable cost. Moreover, the efficient HDAF approximation to the free propagator avoids the need for Fourier transforms in split-step methods, significantly enhancing their performance with an improved balance in cost and accuracy. Both approaches exhibit similar error scaling and run times compared to FFT vector methods; however, MPS offer an exponential advantage in memory, overcoming vector limitations to enable larger discretizations and expansions. Finally, the MPS HDAF split-step method successfully reproduces the physical behavior of a particle expansion in a double-well potential, demonstrating viability for actual research scenarios. El seminario es accesible para los estudiantes de grado, a los que recomendamos encarecidamente que asistan. Para aquellos que no puedan asistir, también hemos configurado una reunión de Google donde el seminario se transmitirá en vivo. https://meet.google.com/csb-snng-bmu También os recordamos a todos la página web del Seminario de Grupos, https://ic1.ugr.es/eventos/wp/qjc/ donde se publicarán anuncios pasados, presentes y futuros. Nos vemos a todos allí DJM ________________________________________________________________________________ Dear all The Quantum Thermodynamics and Computation group cordially invites you to the following seminar Date: Friday 27/9/2024 Time: 11:00 am Location: Computational Physics Laboratory, Department of Electromagnetism and Condensed Mater, Ground Floor, Faculty of Science (next to the giant pendulum) Speaker: Paula García-Molina (Instituto de Física Fundamental - CSIC) Title: Pseudospectral method for solving PDEs using Matrix Product States (arXiv:2409.02916) Abstract: This research focuses on solving time-dependent partial differential equations (PDEs), in particular the time-dependent Schrödinger equation, using matrix product states (MPS). We propose an extension of Hermite Distributed Approximating Functionals (HDAF) to MPS, a highly accurate pseudospectral method for approximating functions of derivatives. Integrating HDAF into an MPS finite precision algebra, we test four types of quantum-inspired algorithms for time evolution: explicit Runge-Kutta methods, Crank-Nicolson method, explicitly restarted Arnoli iteration and split-step. The benchmark problem is the expansion of a particle in a quantum quench, characterized by a rapid increase in space requirements, where HDAF surpasses traditional finite difference methods in accuracy with a comparable cost. Moreover, the efficient HDAF approximation to the free propagator avoids the need for Fourier transforms in split-step methods, significantly enhancing their performance with an improved balance in cost and accuracy. Both approaches exhibit similar error scaling and run times compared to FFT vector methods; however, MPS offer an exponential advantage in memory, overcoming vector limitations to enable larger discretizations and expansions. Finally, the MPS HDAF split-step method successfully reproduces the physical behavior of a particle expansion in a double-well potential, demonstrating viability for actual research scenarios. The seminar is accessible to undergraduate students, whom we strongly encourage to attend. For those of you unable to attend the seminar, we have set-up the following google meet link for the upcoming seminar. https://meet.google.com/csb-snng-bmu We would also like to bring to your attention the groups seminar page https://ic1.ugr.es/eventos/wp/qjc/ where you can find relevant material and information about past, present, and future seminars. See you all there DJM. --------------------------------------------------------- Dr. Michalis Skotiniotis Grupo de Termodinámica y Información Cuántica. Departamento de Electromagnetismo y Física de la Materia. Instituto Carlos I de Física Teórica y Computacional. Facultad de Ciencias, Av. Fuentenueva s/n Universidad de Granada Granada, 18071 Spain Email: mskotiniotis(a)onsager.ugr.es ---------------------------------------------------------

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Toni
by Daniel Manzano 23 Sep '24

23 Sep '24

Dear all. Small reminder that Toni is arriving tomorrow. I’ll have meetings from 10 to lunchtime so, please, make him feel welcome. Dani. --------------------------------------------------------------------------------- Daniel Manzano Quantum Thermodynamics and Quantum 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: [Quantum_spain_TalentQ] Seminario Quantum Spain
by Daniel Manzano 23 Sep '24

23 Sep '24

--------------------------------------------------------------------------------- Daniel Manzano Quantum Thermodynamics and Quantum 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: TalentQ <javier.bouzas.arufe(a)usc.es> > Subject: [Quantum_spain_TalentQ] Seminario Quantum Spain > Date: 23. September 2024 at 09:49:50 CEST > To: <quantum_spain_talentq(a)bsc.es> > Reply-To: TalentQ <javier.bouzas.arufe(a)usc.es> > > > An initiative by: > <https://quantumspain-project.us21.list-manage.com/track/click?u=4de6018b41d…> > QUANTUM SPAIN SEMINAR > September 24th | 4pm (CEST) | Online > > Quantum Convolutional Neural Networks are (Effectively) Classically Simulable > Pablo Bermejo, PhD student at DIPC (Spain) and LANL (USA) > > Quantum Convolutional Neural Networks (QCNNs) are widely regarded as a promising model for Quantum Machine Learning (QML). In this work we tie their heuristic success to two facts. First, that when randomly initialized, they can only operate on the information encoded in low-bodyness measurements of their input states. And second, that they are commonly benchmarked on «locally-easy» datasets whose states are precisely classifiable by the information encoded in these low-bodyness observables subspace. We further show that the QCNN’s action on this subspace can be efficiently classically simulated by a classical algorithm equipped with Pauli shadows on the dataset. Indeed, we present a shadow-based simulation of QCNNs on up-to 1024 qubits for phases of matter classification. Our results can then be understood as highlighting a deeper symptom of QML: Models could only be showing heuristic success because they are benchmarked on simple problems, for which their action can be classically simulated. This insight points to the fact that non-trivial datasets are a truly necessary ingredient for moving forward with QML. To finish, we discuss how our results can be extrapolated to classically simulate other architectures. > > Join Meeting: https://events.teams.microsoft.com/event/06fd2ebc-0541-4ec9-966e-8cf22ae1a6… <https://quantumspain-project.us21.list-manage.com/track/click?u=4de6018b41d…> > <https://quantumspain-project.us21.list-manage.com/track/click?u=4de6018b41d…> > REGISTRARSE > <https://quantumspain-project.us21.list-manage.com/track/click?u=4de6018b41d…> > <https://quantumspain-project.us21.list-manage.com/track/click?u=4de6018b41d…> > <https://quantumspain-project.us21.list-manage.com/track/click?u=4de6018b41d…> > Copyright (C) 2024 USC. Todos los derechos reservados. > Has recibido este correo electrónico porque lo has aceptado en nuestro sitio web. > > Nuestra dirección de correo es: > USC Rua Nova 6 Santiago De Compostela, Galicia 15705 Spain > > ¿Quieres cambiar la forma en que recibes estos correos electrónicos? > Puedes actualizar tus preferencias <https://quantumspain-project.us21.list-manage.com/profile?u=4de6018b41dfd67…> o cancelar la suscripción <https://quantumspain-project.us21.list-manage.com/unsubscribe?u=4de6018b41d…> > <https://quantumspain-project.us21.list-manage.com/track/click?u=4de6018b41d…>_______________________________________________ > 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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Next week
by Juani Bermejo Vega 18 Sep '24

18 Sep '24

Dear all, Next week at 13:00 we will have a small gathering to catch-up, organize a bit and join for a drink at the cafeteria. Everyone is welcome to join. Since we have new members and visitors, we could try to organize a lunch or dinner. Wednesday evening, or Thursday/Friday at lunchtime could work for me. Let me know of your preferences and I will organize it. Best, Juani

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Visit Ana
by Daniel Manzano 18 Sep '24

18 Sep '24

Dear all. I’m happy to tell you that Ana will visit us next week, from Wednesday to Friday. She will deliver a seminar about her work on Support Vector Machines and entanglement classification. We will announce the specific time and date later this week. Best, Sani. --------------------------------------------------------------------------------- Daniel Manzano Quantum Thermodynamics and Quantum 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:
by atejero＠onsager.ugr.es 18 Sep '24

18 Sep '24

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Fwd: [qipc.spain] TalentQ Seminar | Pablo Bermejo | 24/09 @4pm (CEST)
by atejero＠onsager.ugr.es 17 Sep '24

17 Sep '24

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Corcho / magnetic whiteboards
by Juani Bermejo Vega 17 Sep '24

17 Sep '24

Dear all, Some of you proposed it would be nice to have some "corcho" panels for hanging quick notes. I have been looking into it and have seen this type of magnetic white boards, which may be a bit more durable and one can also write on them: Bi-Office Pizarra blanca magnética, 60 x 40 cm, color plateado con marcador y 2 imanes https://urldefense.com/v3/__https://amzn.eu/d/3ABIxrt__;!!D9dNQwwGXtA!Shlo_… OFITURIA® Pizarra Blanca Magnética Lacada Con Marco De Aluminio Resistente Fácil De Borrar En Seco, Medida 45x30 cm https://urldefense.com/v3/__https://amzn.eu/d/5MbOGb7__;!!D9dNQwwGXtA!Shlo_… What do you think? Should we try to order a few of these or similar? How many? Best, JJ

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