Oliver Buerschaper

Oliver Buerschaper's picture
Phd: Technische Universität München 2011

Areas of Research:
Email: obuerschaper@perimeterinstitute.ca
Phone: x6450

Research Interests

I am interested in topological phases of strongly correlated condensed matter systems and their applications to quantum information and computation. In order to study and classify the truly quantum order found in topological phases I employ tools such as tensor networks, Hopf algebras and quantum groups, and many-body entanglement theory.

Recent Publications

  • R. Orus, T.-C. Wei, O. Buerschaper, M. van den Nest. Geometric Entanglement in Topologically Ordered States. New J. Phys. 16, 013015 (2014)
  • O. Buerschaper. Twisted Injectivity in PEPS and The Classification of Quantum Phases. Ann. Phys. (accepted), arXiv: 1307.7763
  • O. Buerschaper, M. Christandl, L. Kong, M. Aguado. Electric-Magnetic Duality of Lattice Systems With Topological Order. Nucl. Phys. B 876, 619-636 (2013)
  • O. Buerschaper, M. Mombelli, M. Christandl, M. Aguado. A Hierarchy of Topological Tensor Network States. J. Math. Phys. 54, 012201 (2013)
  • R. Pfeifer, O. Buerschaper, S. Trebst, A. Ludwig, M. Troyer, G. Vidal. Translation Invariance, Topology, and Protection of Criticality in Chains of Interacting Anyons. Phys. Rev. B 86, 155111 (2012)
  • R. Pfeifer, P. Corboz, O. Buerschaper, M. Aguado, M. Troyer, G. Vidal. Simulation of Anyons With Tensor Network Algorithms. Phys. Rev. B 82, 115126 (2010)
  • O. Buerschaper, M. Aguado. Mapping Kitaev's Quantum Double Lattice Models to Levin and Wen's String-Net Models. Phys. Rev. B 80, 155136 (2009)
  • O. Buerschaper, M. Aguado, G. Vidal. Explicit Tensor Network Representation for the Ground States of String-Net Models. Phys. Rev. B 79, 085119 (2009)
  • O. Buerschaper, S. Morampudi, F. Pollmann. Double Semion Phase in an Exactly Solvable Quantum Dimer Model on the Kagome Lattice. arXiv: 1407.8521
  • R. Orus, T.-C. Wei, O. Buerschaper, A. Garcia Saez. Topological Transitions from Multipartite Entanglement With Tensor Networks: Sharper and Faster. arXiv: 1406.0585
  • X. Ni, O. Buerschaper, M. van den Nest. A Non-Commuting Stabilizer Formalism. arXiv: 1404.5327

Seminars

  • New Quantum Dimer Models With a Twisted Z2 Spin Liquid Phase, International Seminar on "Topology and Entanglement in Correlated Quantum Systems", MPI for the Physics of Complex Systems, Dresden (Germany)
  • A Non-Commuting Stabilizer Formalism, Microsoft Research Station Q, Santa Barbara (USA)
  • A Non-Commuting Stabilizer Formalism, California Institute of Technology, Pasadena (USA)
  • Twisted Injectivity in PEPS and the Classification of Quantum Phases, MPI for the Physics of Complex Systems, Dresden (Germany)
  • Twisted Injectivity in PEPS and the Classification of Quantum Phases, FU Berlin (Germany)
  • Twisted Injectivity in PEPS and the Classification of Quantum Phases, MPI for Quantum Optics, Garching (Germany)
  • Topological Order From Tensor Networks, SUNY at Stony Brook (USA)
  • Towards Unconventional Symmetries in Tensor Network States, SUNY at Stony Brook (USA)
  • Towards Unconventional Symmetries in Tensor Network States, Universidad Complutense de Madrid (Spain)
  • Towards Unconventional Symmetries in Tensor Network States, Workshop on "Networking Tensor Networks", Benasque (Spain)
  • On the Structure of Intrinsic Topological Order in 2D, University of Toronto (Canada)
  • PIRSA:13050048, Twisted Symmetry in Tensor Network States and Topological Order, Emergence & Entanglement II
  • PIRSA:10120024, Classifying Topological Order: Dualities and Hierarchies, Quantum Information