Michael Walter

Prof. Dr. Michael Walter
Chair of Quantum Information Theory, LMU Munich &
Senior Researcher, Ruhr University Bochum		 E-Mail: michael.walter@lmu.de
WWW: michaelwalter.info
Tel: +49 (0)234 32-28555
Office: MC 1.89

Awards

Appointments and Education

since 2025 LMU Munich, Faculty of Physics and Faculty of Mathematics, Computer Science and Statistics
Full Professor (W3, Chair) of Quantum Information Theory
since 2025 University of Amsterdam, Korteweg-de Vries Institute for Mathematics and QuSoft Research Center
Full Professor (part-time) of Quantum Information Science
2022-2025 Ruhr University Bochum, Faculty of Computer Science and CASA Cluster of Excellence
Full Professor (W3, Chair) of Quantum Information
2017-2021 University of Amsterdam (KdVI, ITFA, ILLC) and QuSoft Research Center
Assistant Professor (Tenure-Track) in Mathematics and Theoretical Physics
2014-2017 Stanford University
Postdoctoral Scholar
2010-2014 ETH Zurich, Dr. sc. (Doctor of Sciences)
Thesis: Multipartite Quantum States and their Marginals. Advisor: Matthias Christandl.
2005-2010 University of Karlsruhe (KIT) & Georg–August-University Göttingen, Dipl. Math.,
after undergraduate studies in mathematics and computer science
Thesis: Equivariant geometric K-homology with coefficients. Advisor: Thomas Schick.

Publications

Selected Talks

  • “Robust Tests of Gaussianity”, TUM 2025 [pdf]
  • “Trading Space for Time in Nonlocal Games”, OIST 2024, Banff 2025 [pdf] [video] [survey]
  • “Symmetries in Quantum Information”, ICMP 2024 [pdf]
  • “Random stabilizer tensors – duality and applications”, IHP 2024 [pdf]
  • “Approximate QCAs and a converse to the Lieb-Robinson bounds”, Banff 2021, SwissMAP 2024 [pdf]
  • “Combinatorics meets computation - and quantum information”, 24 Hours of Combinatorial Synergies 2023 [pdf]
  • “Tensor Networks, Fundamental Theorems, and Computional Complexity”, Weizmann/ICMAT/Princeton 2023 [pdf]
  • “Symmetries of Computational Problems and Optimization”, Abel Prize Laureates Lectures 2022 [pdf] [video]
  • “Quantum Information and Spacetime”, Strings 2022 [pdf] [video]
  • “Noncommutative Group Symmetries and Optimization”, Oberwolfach 2021 [pdf]
  • “Hidden Symmetries II: Noncommutative Duality, Geodesic Convexity, Polytopes”, Berkeley 2021 [pdf] [video]
  • “Quantum Brascamp-Lieb inequalities”, IPAM 2021 [video], ICMP 2021 [pdf] [video]
  • “Maximum likelihood estimation for tensor normal models”, Firenze 2021
  • “Fun with Replicas & Holographic Tensor Networks”, Perimeter 2020 [video]
  • “Tensors, invariants, and optimization”, Leipzig 2019, Berkeley 2019, Berlin 2020, Chennai 2020, Perimeter 2020 [pdf] [pdf] [pdf] [pdf] [pdf]
  • “Quantum circuits for the Dirac field in 1+1 dimensions”, AEI 2019, Stanford 2019, YITP 2019 [pdf] [video] [pdf] [pdf]
  • “Quantum marginals, invariants, and non-commutative optimization”, Leiden 2019, SIAM-AG 2019 [pdf] [pdf]
  • “Quantum Marginals, Entanglement, and Symmetries”, DPG 2019 [pdf]
  • “An invitation to tensor networks”, IAS 2018 [video]
  • “Schur-Weyl Duality for the Clifford Group: Property testing, de Finetti representations, and a robust Hudson theorem”, QIP 2018 [pdf] [video]
  • “Quantum Information and Holography”, DESY 2018 [pdf] [video]
  • “Quantum entanglement and space-time”, Groningen 2018 [video]
  • “Convexity, marginals, and moment polytopes”, IAS 2018 [pdf] [video]
  • “Introduction to Quantum Programming”, QuSoft 2018
  • “Quantum marginal problem, tensor scaling, and invariant theory”, NMC 2018 [pdf]
  • “Rigorous entanglement renormalization from wavelets”, KITP 2017, Caltech 2017, AEI 2018, Amsterdam 2018, GGI 2018 [pdf] [video] [pdf] [pdf] [pdf] <!–
  • “When is a quantum state a stabilizer state?”, QuSoft 2017, QuTech 2018 [pdf] –>
  • “Bulk reconstruction, error correction, and recovery maps”, KITP 2017 [video]
  • “Tensor network models of holography”, DESY 2017
  • “When is a state a stabilizer state? Testing stabilizer states with six copies”, CWI 2017
  • “Tensors and Quantum Physics”, Auburn 2017 [video]
  • “Multiparty entanglement, random codes, and quantum gravity”, Coogee 2017 [pdf], “Multipartite entanglement in toy models of holography”, Simons Center for Geometry & Physics 2016 [pdf] [video]
  • “Entanglement in random tensor networks”, Georgia Tech 2016 [pdf]
  • “Holographic duality from random tensor networks”, MIT 2015, KITP 2016, Cologne 2016, IQC 2016 [pdf] [pdf] [video] [other]
  • “Moment polytopes & computational complexity”, Berkeley 2015 [pdf]
  • “The Holographic Entropy Cone”, ETHZ, Caltech, CRM 2015; QIP 2016 [pdf short] [video] [pdf long]
  • “Kronecker coefficients and complexity theory”, Dartmouth 2015, Rome 2016 [pdf]
  • “Topologically ordered models in higher dimensions”, QGQIT 2015 [pdf]
  • “Random Quantum Marginals”, IAS 2014 [video]
  • “A Heisenberg Limit for Quantum Region Estimation”, ISIT 2014 [pdf]
  • “The Quantum Marginal Problem”, DPG Spring Meeting 2014 [pdf]
  • “Entanglement Polytopes”, QIP 2013; QSIT Lunch Seminar [pdf] [video] [science] [pdf] [explorer]
  • “Quantum Entropies and Representation Theory”, IHES 2013 [pdf]
  • “Computing Multiplicities of Lie Group Representations”, FOCS 2012 [pdf] [video]
  • “Quantum State Tomography of 1000 Bosons”, SPS Meeting 2012 [pdf]
  • “Quantum Marginals and Classical Moments”, IMS 2013 [pdf]
  • “Eigenvalue Distributions of Reduced Density Matrices”, ICMP 2012 [pdf]

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