Modern Topics in Quantum Information

Workshop | Monday, July 30, 2018 - Friday, August 17, 2018
Antonio Acin
Rafael Chaves
Luiz Davidovich
Aram Harrow
Fernando Brandao
D. Gross



Quantum information theory has grown so diverse that it is now impossible to include all its strands in a single event. For this reason, this event will consist of 2 more specialized workshops (at the first and third weeks) with a broad conference in between (second week). We encourage the participants from the workshops to also take part in the conference.

The workshops will have a key-note talk of 1 hour per day. Every other participant is also a speaker and can also give a talk about their work. In order to maximize interactions and collaborations we expect that most of the other talks will be self-organized by the participants during the event (including potential parallel sessions and discussions). But send your title and abstract during the registration so we can pre-organize a tentative program. The number of place in the workshops will be very limited.

For the conference we have planned a few key-note and invited talks covering some of the most relevant developments in QI over the recent years. There will also be plenty of time for contributed talks and if needed a poster session.



The field of quantum information evolved out of asking fundamental questions about the effect of quantum physics upon information processing. Within this context, the aim of this Workshop will be the discussion of a few topics that have emerged in recent years. An underlying feature of all recent development has been the search to understand, from more intuitive principles, why quantum mechanics describes nature so well. On one hand, this gave rise to the device-independent approach to quantum information, where solely by interacting through classical, experimental data we can manipulate quantum mechanical devices for certain tasks without needing to rely on any particular assumptions about implementations. On the other, it has shown that in order to understand quantum theory, unavoidably we have to revisit our most basic notions of cause and effect, what naturally led to a very promising direction of research, connecting causality, artificial intelligence and machine learning with problem in quantum information.


The workshop will cover on the following topics (but will not be limited to): Quantum correlations, Quantum cryptography, Quantum thermodynamics, Quantum Causality, Quantum machine learning, Quantum many-body systems, Quantum information-inspired experiments.


Preliminary list of key-note speakers:


Antonio Acin, ICFO Barcelona, Spain

Caslav Brukner, IQOQI Vienna, Austria

Francesco Buscemi, Nagoya University, Japan

Marcos Huber, IQOQI Vienna, Austria

Philip Walther, University of Vienna, Austria


Preliminary list of participants (TBC):


Adan Cabello, University of Sevilla, Spain

Ariel Bendersky, University of Buenos Aires, Argentina

Ashutosh Rai, IIP, Brazil

Askery Canabarro, IIP, Brazil

Barbara Amaral, UFSJ & IIP, Brazil

Cristhiano Duarte, IIP, Brazi

Cyril Branciard, Institut Neel, France

Daniel Cavalcanti, Institute of Photonic Sciences, Spain

David Gross, University of Cologne, Germany

Eric Cavalcanti, Griffith University, Australia

Ernesto Galvão, UFF, Brazil

Felipe Montealegre-Mora, University of Cologne, Germany

Fernando Parisio,UFPE, Brazil

Flavio Baccari, ICFO, Spain

Gabriel Senno, ICFO, Spain

Gabriela Lemos, IIP, Brazil

Giulia Rubino, University of Vienna, Austria

Glaucia Murta, QuTech Delft, Netherland

Ivan Supic, ICFO

Jacques Pienaar, IIP, Brazil

Jean-Daniel Bancal, Basel University, Switzerland

Jessica Bavaresco, IQOQI, Austria

Jonatan Bohr Brask, Universtiy of Geneva, Switzerland

Jordi Tura, Max Planck Garching, Germany

Joe Bowles, ICFO, Spain

Julio de Vicente, Madrid University, Spain

Leandro Aolita, Federal University of Rio de Janeiro, Brazil

Lucas Celeri, UFG, Brazil

Marcelo Terra Cunha, Unicamp, Brazil

Marco Tulio Quintino, University of Tokyo, Japan

Marco Piani, University of Strathclyde, UK

Markus Muller, IQOQI, Austria

Mateus Araujo, University of Cologne, Germany

Matthew Hoban, University of Oxford, UK

Mirjam Weilenman, University of York, UK

Nicolas Brunner, University of Geneva, Switzerland

Paul Skrzypczyk, Bristol University, England

Rafael Chaves, IIP, Brazil

Rafael Rabelo, Unicamp, Brazil

Raphael Drummond, UFMG, Brazil

Renato Angelo, UFPR, Brazil

Samurai Brito, IIP, Brazil

Thiago Guerreiro, PUC-Rio, Brazil



The discovery that the microscopic laws of physics allow for a fundamental speedup over any classical approach to computation has arguably been the single most important boost to quantum information theory. After the initial excitement, there was a period of increased scepticism about whether the daunting engineering challenges of actually constructing a quantum computer could be overcome. However, significant progress e.g. in solid-state based qubit implementations over the past few years have increased the interest in quantum computation the point where now several leading technology corporations are now funding projects with the goal of demonstrating computational quantum supremacy. In parallel to that quantum information has also interconnected with several other areas, being nowadays an essential tool in other areas within physics (e.g. condensed matter physics, gravity, thermodynamics) as well as outside (e.g. machine learning, statistical and causal inference). The conference will cover topics that are of particular recent interest and that represent the broadness of quantum information.

The conference will cover on the following topics (but will not be limited to):Quantum computation, Quantum machine learning, Quantum cryptography, Quantum information and condensed matter physics, Quantum information and gravity, Quantum thermodynamics, Quantum information-inspired experiments.


Preliminary list of key-note speakers:

Aram Harrow, MIT, USA

Fabio Sciarrino, Sapienza University, Italy

Fernando Brandão, Caltech, USA

Jens Eisert, Free University of Berlin, Germany

Laura Mancinska, Copenhagen, Denmark

Luiz Davidovich, UFRJ, Brazil


Preliminary list of invited speakers:

Leandro Aolita, UFRJ & ICTP-SAIFR, Brazil

Marcelo França, UFRJ, Brazil

Marco Piani, University of Strathclyde, UK

Peter Wittek, Creative Destruction Lab, Canada

Richard Kueng, Caltech, USA

Roberto Serra, UFABC, Brazil

Stephen Walborn, UFRJ, Brazil




There has been an extremely fruitful interchange of ideas between quantum information and the field of convex geometry.

Convex optimization theory, for instance, is overtly concerned with the applied problem of solving certain optimization problems that are important e.g. in engineering. More interestingly, though, it is also provides increasingly important theoretical tools with applications to computational complexity theory. One major reason is that the convex optimization technique of semi-definite programming (SDP) is one of the most powerful methods for systematically deriving relaxations that give approximate solutions to otherwise computationally hard problems. For many tasks e.g. in graph theory or signal analysis, SDPs give rise to the best-known approximate algorithms.

In turn, since the set of states and operations in quantum theory are defined by semi-definite constraints, it is plausible that SDPs are relevant in this context. This is indeed true, and SDPs provide powerful techniques e.g. for identifying and quantifying entanglement. However, the past few years have seen a reversal in the flow of ideas in that several researchers from quantum information used physics-inspired concepts to contribute to convex optimization theory. Examples include the high-profile solution of a long-standing open problem showing that there is no efficient SDP formulation of the Traveling Salesperson Problem; the development of converging hierarchies of SDP-relaxations to problems specified by polynomials in non-commuting variables; the use of methods from quantum information to develop the first general theory of low-rank matrix recovery using SDPs; and the very recent discovery that quantum computers offer exponential speedups for solving certain SDPs.

Lastly, there is increased interest in exploring probabilistic theories that generalize quantum theory. They are naturally described in terms of "states" and "effects", which form pairs of dual convex cones. A significant amount of research has gone into characterizing the physical properties of such theories in terms of the convex geometry of these sets.



Preliminary list of key-note speakers:


Boaz Barak, Computer Science, Harvard University, USA

Cecilia Lancien, Mathematics and Physics, Universidad Complutense de Madrid, Spain

Jean B. Lasserre,LAAS-CNRS, Toulouse France, TMBI (Univ. Toulouse)

Omar Fawzi, Computer Science, École Normale Supérieure de Lyon, France

Miguel Navascues, Physics, IQOQI Vienna, Austria


Preliminary list of invited speakers:


Cristhiano Duarte, IIP, Brazilian

David Gross, University of Cologne, Germany

Fernando Brandão, Caltech, USA

Frank Vallentin, University of Cologne, Germany

Jamie Sikora, Perimeter Institute, Canada

Mario Berta, Caltech, USA

Marco Tulio Quintino, University of Tokyo, Japan

Mateus Araujo, University of Cologne, Germany

Peter Wittek, ICFO, Spain

Richard Kueng, Caltech, USA

Tobias Fritz, Max Planck, Germany




In order to assist the organizing staff to timely issue invitation and visa letters, book accommodation and communicate important information, the prospective participants are kindly asked to register by clicking on the "Register" button at the top of this page.


Please notice that the registration is done in 2 steps. First one has to create an account at the IIP website, input some information and choose a password. After that you have to register in the event "Modern Topics in Quantum Information" and fill the required information (abstract, dates, etc). In the field "Please inform here any other relevant information" please indicate to which part of the event you are submmiting your talk/poster (1st or 2nd Workshop or for the Conference).


Registration deadline for talk submission and support request: May 19, 2018

Registration deadline for participation in the events: June 30, 2018




The policy of the International Institute of Physics with respect to organization of events demands collecting a registration fee from the participants. Members of the local community (institutions in Natal) are considered as free listeners and are exempt from paying the fee. Participants will have daily fee transport to the conference venue (bus shuttle), coffee-breaks and lunch. The conference fee as well include the conference dinner.


For those participanting one week only


Students = R$300 Brazilian reais

Postdocs/Professionals = R$ 500 Brazilian reais


For those participanting longer than one week


Students = R$450 Brazilian reais

Postdocs/Professionals = R$ 800 Brazilian reais


*Registration fee is accepted in cash only.

** Information about lodging will be posted soon.



Available for those who qualify for financial help. You may apply for financial support when filling out your registration form (Registration page).


For more information, please contact our events department at: