April 2025 - Qtcg

Fwd: [Quantum_Spain] Re: [Importante] Abierta la convocatoria acceso ordenadores cuánticos de la RES
by Daniel Manzano 11 Apr '25

11 Apr '25

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Fwd: [qipc.spain] Postdoctoral positions CQT
by Daniel Manzano 10 Apr '25

10 Apr '25

--------------------------------------------------------------------------------- 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: Alba Cervera Lierta <alba.cervera(a)bsc.es> > Subject: [qipc.spain] Postdoctoral positions CQT > Date: 10. April 2025 at 09:37:55 CEST > To: "qipc.spain(a)listas.csic.es" <qipc.spain(a)listas.csic.es>, "qipc.spain(a)listas.csic.es" <qipc.spain(a)listas.csic.es> > Reply-To: Alba Cervera Lierta <alba.cervera(a)bsc.es> > > Dear all, > > CQT offers postdoctoral positions to develop the National Quantum Computing Hub, with special focus on developing quantum algorithms for problems in Computational Biology and Finance. > > Interested candidates can send a cv to the attention of J.I.Latorre, cqtdir(a)nus.edu.sg > > Best, > > Alba Cervera-Lierta, PhD > Senior Researcher > Quantum Spain coordinator > Barcelona Supercomputing Center > > [Sent from my phone. Please excuse typos and brevety]

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New paper on Quantum Thermodynamics
by Daniel Manzano 08 Apr '25

08 Apr '25

Please congratulate Álvaro on his recently published paper. https://journals.aps.org/prresearch/pdf/10.1103/PhysRevResearch.7.023020 PhysRevResearch.7 PDF Document · 2,4 MB 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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SEMINARIO: Open Quantum Systems 2: The Lindblad Equation
by Michalis Skotiniotis 08 Apr '25

08 Apr '25

El grupo de Termodinámica y Computación Cuántica les invita al siguiente seminario Fecha: Viernes 11 de Abril 2025 Hora: 12:00 am Lugar: Laboratorio de Fïsica Computacional, Dept de Electromagnetismo y Física de al Materia, Planta Baja, Facultad de Ciencias (junto al péndulo gigante) Ponente: Daniel Manzano (QTCG, Universidad de Granada) Titulo: Open Quantum Systems 2: The Lindblad Equation Resumen: In this lecture, we will introduce the problem of Open Quantum Systems within the Markovian framework, a crucial approach for understanding dissipation and decoherence in quantum mechanics. We will begin by considering the full quantum dynamics of a composite system consisting of a subsystem of interest coupled to an environment. By systematically applying a series of approximations—such as weak coupling, Born, and Markov approximations—we will derive an effective equation of motion that governs the reduced dynamics of the subsystem. This will allow us to describe irreversible processes and the loss of quantum coherence in a controlled manner. Throughout the lecture, we will emphasize the physical meaning of these approximations and their range of validity. El seminario es accesible para los estudiantes de grado, a los que recomendamos encarecidamente que asistan. Para quienes no puedan asistir, el seminario estará disponible en el canal de YouTube del grupo en unos días. https://www.youtube.com/@qtcg_ugr También os recordamos a todos la página web del Grupo, https://ic1.ugr.es/members/qtc/ 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 11 of April 2025 Time: 12:00 am Location: Computational Physics Laboratory, Department of Electromagnetism and Condensed Mater, Ground Floor, Faculty of Science (next to the giant pendulum) Speaker: Daniel Manzano (QTCG, University of Granada) Title: Open Quantum Systems 2: The Lindblad Equation Abstract: In this lecture, we will introduce the problem of Open Quantum Systems within the Markovian framework, a crucial approach for understanding dissipation and decoherence in quantum mechanics. We will begin by considering the full quantum dynamics of a composite system consisting of a subsystem of interest coupled to an environment. By systematically applying a series of approximations—such as weak coupling, Born, and Markov approximations—we will derive an effective equation of motion that governs the reduced dynamics of the subsystem. This will allow us to describe irreversible processes and the loss of quantum coherence in a controlled manner. Throughout the lecture, we will emphasize the physical meaning of these approximations and their range of validity. The seminar is accessible to undergraduate students, whom we strongly encourage to attend. For those unable to attend, the seminar will be available on the groups Youtube channel in a few days https://www.youtube.com/@qtcg_ugr We would also like to bring to your attention the groups web page https://ic1.ugr.es/members/qtc/ 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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Fwd: [noticias] seminario Aljaz Godec
by Daniel Manzano 07 Apr '25

07 Apr '25

--------------------------------------------------------------------------------- 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: Raúl Rica <rul(a)ugr.es> > Subject: [noticias] seminario Aljaz Godec > Date: 7. April 2025 at 13:37:55 CEST > To: noticias(a)listas.ugr.es > > Seminario impartido por Aljaz Godec (Max Planck Institute for Multidisciplinary Sciences, Gottingen, Alemania) > > Fecha y hora: Miércoles 9 de abril, 12:10 > Lugar: Aula A03 (ubicada en Aulario A de la Facultad de Ciencias) > > Título: Thermal relaxation asymmetry: from single molecules to hydrodynamic fluctuation > > Resumen: According to conventional wisdom, a macroscopic system placed in an environment with a different temperature relaxes (i.e., warms up or cools down) to the temperature of the surroundings. This relaxation is mediated by the flow of heat that is set only by the temperature difference. However, when rapid changes in temperature push a system far from equilibrium, thermal relaxation becomes asymmetric, which was predicted theoretically and recently confirmed experimentally. That is, under quite general conditions, heating is in fact faster than cooling. > > I will first introduce the relaxation asymmetry in reversible and detailed-balance violating finite-dimensional systems. Next I will present a rigorous formulation of thermal relaxation in the framework of hydrodynamic fluctuation theory for short- and long-range interacting systems, respectively. I will show that the asymmetry persists in the hydrodynamic limit and that in contrast to finite-dimensions a "true" close-to-equilibrium thermal quench with symmetric heating and cooling at all times does not exist. > > Gracias, un saludo > > Raúl > > > > > -- > Raúl A. Rica Alarcón > Nanoparticles Trapping Laboratory > Department of Applied Physics > School of Sciences > Universidad de Granada > Avda. Fuentenueva s/n > 18071, Granada, Spain > +34 958240015 (Office) > +34 958241000 Ext. 20631 (Lab) > nanotlab(a)ugr.es <mailto:nanotlab@ugr.es> > > https://sites.google.com/view/nanotlab > > -- > Cláusula de Confidencialidad: "Este mensaje se > dirige exclusivamente a su destinatario y puede > contener información privilegiada o confidencial. > Si no es Ud. el destinatario indicado, queda > notificado de que la utilización, divulgación o > copia sin autorización está prohibida en virtud de > la legislación vigente. Si ha recibido este mensaje > por error, se ruega lo comunique inmediatamente por > esta misma vía y proceda a su destrucción. > > This message is intended exclusively for its addressee > and may contain information that is CONFIDENTIAL and > protected by professional privilege. If you are not the > intended recipient you are hereby notified that any > dissemination, copy or disclosure of this communication > is strictly prohibited by law. If this message has been > received in error, please immediately notify us via > e-mail and delete it" > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> Virus-free.www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> <x-msg://7/#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

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Fwd: [dasci-seminarios] DaSCI Seminar - This Week - Sandra González-Bailón - Social and algorithmic choices in the transmission of (mis)information
by Daniel Manzano 07 Apr '25

07 Apr '25

Interesting seminar. --------------------------------------------------------------------------------- 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: Pablo Mesejo Santiago <pmesejo(a)go.ugr.es> > Subject: [dasci-seminarios] DaSCI Seminar - This Week - Sandra González-Bailón - Social and algorithmic choices in the transmission of (mis)information > Date: 7. April 2025 at 09:35:58 CEST > To: dasci(a)listas.ugr.es, dasci-seminarios(a)listas.ugr.es > Cc: "Gonzalez-Bailon, Sandra" <sandra.gonzalez.bailon(a)asc.upenn.edu> > > Dear DaSCI members, > > Below you can find the information related to the DaSCI seminar which will take place this Wednesday (April 9th 2025). > > Speaker: Sandra González-Bailón > Title: Social and algorithmic choices in the transmission of (mis)information > Online Room: https://oficinavirtual.ugr.es/redes/SOR/SALVEUGR/accesosala.jsp?IDSALA=2299… > Password: 867285 > Date: 09/04/2025 > Time: 16:00 (Spanish time) > > The following link can allow you to directly schedule this event, and save all this information, in your Google Calendar: https://calendar.app.google/cQwuc4ccJjZ2dJHX7 <https://urldefense.com/v3/__https://calendar.app.google/cQwuc4ccJjZ2dJHX7__…> > > We encourage PhD students to participate in these events. In this regard, we will share a registration form during the talk, so students can register and certify their attendance to the corresponding PhD program. > > As usual, the seminar will last around 1h (45 min. talk + 15 min. of questions). > > Abstract: > The circulation of information requires prior exposure: we cannot disseminate what we do not see. In online platforms, information exposure results from a complex interaction between social and algorithmic forms of curation that shapes what people see and what they engage with. In this talk, I will discuss recent research investigating the social and technological factors that shape what information we encounter online and how it diffuses from user to user. I will also discuss why it is important we adopt a systematic approach to mapping the information environment as a whole – this approach is needed to capture aggregate characteristics that go unnoticed if we only focus on individuals. Networks, I will argue, offer measurement instruments that can help us map that landscape and identify pockets of problematic content as well as the types of audiences more likely to engage with it. > > Short Bio: > Sandra González-Bailón is the Carolyn Marvin Professor of Communication at the Annenberg School for Communication, and Director of the Center for Information Networks and Democracy (cind.asc.upenn.edu <https://urldefense.com/v3/__http://cind.asc.upenn.edu/__;!!D9dNQwwGXtA!RMVa…>). She also has a secondary appointment in the Department of Sociology at Penn. Prior to joining Penn, she was a Research Fellow at the Oxford Internet Institute (2008-2013). She completed her doctoral degree in Nuffield College (University of Oxford) and her undergraduate studies at the University of Barcelona. Her research agenda lies at the intersection of computational social science and political communication. Her applied research looks at how online networks shape exposure to information, with implications for how we think about political engagement, mobilization dynamics, information diffusion, and the consumption of news. Her articles have appeared in journals like PNAS, Science, Nature, Political Communication, the Journal of Communication, and Social Networks, among others. She is the author of the book Decoding the Social World (MIT Press, 2017) and co-editor of the Oxford Handbook of Networked Communication (OUP, 2020). > > We hope this talk will be of interest to you, and we look forward to seeing you the day after tomorrow. > > Best, > Pablo

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Fwd: [InfoiC1UGR] Recordatorio: Jornadas de investigación 2025 del iC1-UGR
by Daniel Manzano 02 Apr '25

02 Apr '25

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Fwd: [quantum-foundations] PhD position in QIT in Bratislava
by Daniel Manzano 01 Apr '25

01 Apr '25

--------------------------------------------------------------------------------- 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: Anna Jenčová (via quantum-foundations Mailing List) <quantum-foundations(a)maillist.ox.ac.uk> > Subject: [quantum-foundations] PhD position in QIT in Bratislava > Date: 1. April 2025 at 10:26:42 CEST > To: quantum-foundations(a)maillist.ox.ac.uk > Reply-To: jencaster(a)gmail.com > > Dear Colleagues, > > I would be grateful if you could inform anyone who might be interested in the following announcement. > > Thank you. > > Best regards, > > Anna Jencova > > > PhD position in Quantum information theory at the Mathematical Institute of the Slovak Academy of Sciences > > Offer description: The Mathematical Institute of SAS offers a PhD position for research in quantum information theory, under supervision of Anna Jenčová http://www.mat.savba.sk/~jencova/index.html <https://urldefense.com/v3/__http://www.mat.savba.sk/*jencova/index.html__;f…>. The study is organized in cooperation with the Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava. Possible topics are the following: > > Relative entropies in quantum information theory. > > Relative entropy is one of the fundamental concepts in information theory. These quantities describe operational characteristics of optimal procedures in various types of information-theoretic tasks, but also serve as an important mathematical tool. The class of quantum relative entropies is much richer than the classical counterpart and many of the possible quantities, their interpretations and mutual relations are not fully investigated. We focus on various versions of quantum Rényi relative entropies and their extensions, such as to infinite dimensions or for quantum channels, as well as their possible operational interpretations. > > Quantum channels and higher order maps > > Quantum channels describe most general physically allowed transformations between quantum systems. The framework of higher order maps (HOMs) allows a more detailed study of general quantum protocols, such as channel measurements, channel transformations, channels with memory, etc. Nowadays there is an increasing interest in understanding the structure and properties of HOMs. Possible goals of the proposed thesis include the study of the mathematical structure of HOMs from different points of view, like operator theory, category theory, linear algebra or convex geometry. We will focus on nonclassical properties of HOMs, e.g. incompatibility or indefinite causal order, their classification, consequences and possible advantages in information processing. > > The position requires a MSc. degree or equivalent in mathematics or physics. > > For more information, see https://musavsrv.mat.savba.sk/phdstudy.htm <https://urldefense.com/v3/__https://musavsrv.mat.savba.sk/phdstudy.html__;!…> and https://fmph.uniba.sk/en/admissions/admissions-process/doctoral-degree-admi… <https://urldefense.com/v3/__https://fmph.uniba.sk/en/admissions/admissions-…> > > Application requirements: Interested applicants should send the following materials to anna.jencova(a)mat.savba.sk <mailto:anna.jencova@mat.savba.sk>: > > a CV including a list of publications (if any), with emphasis on the scientific results of the applicant > motivation letter > two academic recommendation letters > > Further documents will be requested from selected candidates. The deadline for application submission is CET 23:59, April 20, 2025. > >

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Interesting article about Variational Algorithms and Barren Plateaus
by Daniel Manzano 01 Apr '25

01 Apr '25

https://www.nature.com/articles/s42254-025-00813-9 Barren plateaus in variational quantum computing - Nature Reviews Physics nature.com --------------------------------------------------------------------------------- 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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