Andreas Winter

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

- Lupini M, Mančinska L, Paulsen VI, Roberson DE, Scarpa G, Severini S, Todorov IG & Winter A 2020, 'Perfect Strategies for Non-Local Games', Math. Phys. Anal. Geom., vol. 23, 7.

- Escolà Ll, Calsamiglia J & Winter A 2020, 'All tight correlation Bell inequalities have quantum violations', Phys. Rev. Res., vol. 2, 012044(R).

- Aubrun G, Lami L, Palazuelos C, Szarek SJ & Winter A 2020, 'Universal Gaps for XOR Games from Estimates on Tensor Norm Ratios', Commun. Math. Phys., vol. 375, no. 1, 679-724.

- Khanian ZB & Winter A 2020, 'Distributed Compression of Correlated Classical-Quantum Sources or: The Price of Ignorance', IEEE Trans. Inf. Theory, vol. 66, no. 9, 5620-5633.

- Popescu S, Sainz AB, Short AJ & Winter A 2020, 'Reference Frames Which Separately Store Noncommuting Conserved Quantities', Phys. Rev. Lett., vol. 125, 090601.

- Khanian ZB & Winter A 2020, 'General Mixed State Quantum Data Compression with and without Entanglement Assistance', in: Proc. ISIT 2020, pp. 1858-1863.

- Khanian ZB & Winter A 2020, 'Quantum State Redistribution for Ensemble Sources', in: Proc. ISIT 2020, pp. 1864-1869

- Salek F & Winter A 2020, 'Multi-User Distillation of Common Randomness and Entanglement from Quantum States', in: Proc. ISIT 2020, pp. 1967-1972.

- Hirche Ch & Winter A 2020, 'An Alphabet-Size Bound for the Information Bottleneck Function', in: Proc. ISIT 2020, pp. 2401-2406.

- Mancini S & Winter A 2020, A Quantum Leap in Information Theory, World Scientific Publishing Co., Singapore.

Selected research activities

Together with Emina Soljanin (U Rutgers), I guest-edited a special issue on Quantum Information Science of IEEE J Selected Areas Inf. Theory, vol. 1, no. 2, 2020.