Andreas Winter

Universitat Autònoma de Barcelona

Experimental Sciences & Mathematics

Andreas Winter was born in Altötting, a small rural town near Munich, known also as the Heart of Bavaria. After developing an infatuation with science early on, and in particular with mathematics, he decided to study this subject in Konstanz and Berlin. He graduated in 1997 from the Freie Universität Berlin, and went on to obtain a doctorate in mathematics from the Universität Bielefeld in 1999, with the late Rudolf Ahlswede. In 2001 he joined the quantum information group in Bristol as a postdoc, became Lecturer in Applied Mathematics there in 2003, and Professor of the Physics of Information in 2006. In 2012 he left Bristol after 11 years, to move to the Universitat Autònoma de Barcelona as ICREA Research Professor, where he is now part of the quantum information group.

Research interests

I work on quantum information, especially quantum Shannon theory, which aims at incorporating information-theoretic ideas into physics. The Shannon theoretic approach has succeeded in quantifying entanglement as a resource in information processing task, and likewise for other properties of quantum systems such as channel and storage capacities of quantum systems. One of my favourite topics is the interplay between classical and quantum information, evident in the intricate structure of local operations in composite systems, such as data hiding or "information locking". I also work on additivity and non-additivity of quantum channel capacities, quantum data compression, and zero-error quantum communication. Further interests include statistical mechanics, thermodynamics, resource theories, entropy characterization and entanglement measures. But at heart I am a mathematician and will still get fascinated by classic problems: existence of Hadamard matrices, incompleteness, ...

Selected publications

- Li K & Winter A 2018, 'Squashed entanglement, k-extendibility, quantum Markov chains, and recovery maps', Found. Physics, vol. 48, no. 8, pp. 910-924.

- Junge M, Renner R, Sutter D, Wilde MM & Winter A 2018, 'Universal Recovery Maps and Approximate Sufficiency of Quantum Relative Entropy', Ann. Henri Poincaré, vol. 19, no. 10, pp. 2955-2978.

- Lami L, Regula B, Wang X, Nichols R, Winter A & Adesso G 2018, 'Gaussian quantum resource theories', Phys. Rev. A, vol. 98, 022335.

- Lami L, Palazuelos C & Winter A 2018, 'Ultimate Data Hiding in Quantum Mechanics and Beyond', Commun. Math. Phys., vol. 361, no. 2, pp. 661-708.

- Popescu S, Sainz AB, Short AJ & Winter A 2018, 'Quantum reference frames and their applications to thermodynamics', Phil. Trans. Royal Society A, vol. 376, no. 2123, 20180111.

- García Díaz M, Fang K, Wang X, Rosati M, Skotiniotis M, Calsamiglia C & Winter A 2018, 'Using and reusing coherence to realize quantum processes', Quantum, vol. 2, 100.

- Boche H, Deppe C, Nötzel, J & Winter A 2018, 'Fully Quantum Arbitrarily Varying Channels: Random Coding Capacity and Capacity Dichotomy', in: Proc. 2018 IEEE Int. Symp. Inf. Theory (ISIT), pp. 2012-2016.

- Boche H, Deppe C & Winter A 2018, 'Secure and Robust Identification via Classical-Quantum Channels', in: Proc. 2018 IEEE Int. Symp. Inf. Theory (ISIT), pp. 2674-2678.

- García-Patrón R, Matthews W & Winter A 2018, 'Quantum Enhancement of Randomness Distribution', IEEE Trans. Inf. Theory, vol. 64, no. 6, pp. 4664-4673.

- Lami L, Sabapathy KK & Winter A 2018, 'All phase-space linear bosonic channels are approximately Gaussian dilatable', New J. Phys., vol. 20, 113012.

Selected research activities

Once more, I helped co-organise a Beyond IID in Information Theory (6th edition) workshop, at the Isaac Newton Institute Cambridge, 23-27 July, with Nilanjana Datta & Jossy Sayir. It brought together ca. 70 participants, a growing community of information scientists at the cutting edge of Shannon theory: