## Members

Name | William Witczak-Krempa |

Affiliation | |

Phone (1) | 514-343-6669 |

Areas of research (1) | Condensed Matter Physics, Quantum Field Theory, Conformal Field Theory |

Area of research (2) | Entanglement, Quantum Critical Phase Transitions, Topological Phases in Quantum Materials, Quantum Spin Liquids |

Students with dates (current and since last year) and affiliation (1) | Éric Dupuis, Fall 2017-present, Université de Montréal |

Students with dates (current and since last year) and affiliation (2) | Christian Boudreault, Fall 2017-present, Université de Montréal |

Students with dates (current and since last year) and affiliation (3) | Lena Engström, Fall 2018-present, McGill University |

Students with dates (current and since last year) and affiliation (4) | Alex Vigeant, January 2019-present, Université de Montréal |

Students with dates (current and since last year) and affiliation (5) | Daniel Gendron, January 2019-present, Université de Montréal |

Students with dates (current and since last year) and affiliation (6) | Gabriel Longpré, September 2019-present, Université de Montréal |

Students with dates (current and since last year) and affiliation (7) | Louis Godbout, September 2019-present, Université de Montréal |

Student with dates (current and since last year), and affiliation (8) | Lucie Maude Fournier, September 2019-present, Université de Montréal |

Student with dates (current and since last year), and affiliation (9) | Stéphane Vinet, September 2019-present, Université de Montréal |

Student with dates (current and since last year), and affiliation (10) | Simon Martin, September 2019-present, Université de Montréal |

Visiting Researchers with exact dates (current and since last year) and affiliation (1) | Andy Lucas, Stanford University, Dec. 10-14 2017 |

Visiting Researchers with exact dates (current and since last year) and affiliation (2) | Clément Berthiere, Peking University, April 1-12 2019 |

Selected Recent Publications (past 2 years only) (1) | Wei Zhu, Xiao Chen, Yin-Chen He, W. Witczak-Krempa, “Entanglement signatures of emergent Dirac fermions: kagome spin liquid & quantum criticality”, Science Advances 4, eaat5535 (2018). |

Selected Recent Publications (past 2 years only) (2) | Xiao Chen, Eduardo Fradkin, W. Witczak-Krempa, “Quantum spin chains with multiple dynamics”, Phys. Rev. B 96, 180402(R) (2017). |

Selected Recent Publications (past 2 years only) (3) | Xiao Chen, Eduardo Fradkin, W. Witczak-Krempa, “Gapless quantum spin chains: multiple dynamics and conformal wavefunctions”, Journal of Physics A: Mathematical and Theoretical, Volume 50, Number 46 (2017). |

Selected Recent Publications (past 2 years only) (4) | A. Lucas, T. Sierens, W. Witczak-Krempa, “Quantum critical response: from conformal perturbation theory to holography”, JHEP (2017) 2017: 149 (2017). |

Selected Recent Publications (past 2 years only) (5) | X. Chen, W. Witczak-Krempa, T. Faulkner, E. Fradkin, “Two-cylinder entanglement entropy under a twist”, Journal of Statistical Mechanics: Theory and Experiment, Volume 2017, April 2017. |

Selected Recent Publications (past 2 years only) (6) | S. Whitsitt, W. Witczak-Krempa, S. Sachdev, “Entanglement entropy of the large N Wilson-Fisher conformal field theory”, Physical Review B 95, 045148 (2017). |

Selected Recent Publications (past 2 years only) (7) | A. Lucas, S. Gazit, D. Podolsky, W. Witczak-Krempa, "Dynamical response near quantum critical points", Physical Review Letters 118, 056601 (2017). |

Selected Recent Publications (past 2 years only) (8) | W. Witczak-Krempa, L. E. Hayward Sierens, R. G. Melko, "Cornering gapless quantum states via their torus entanglement", 118, 077202 (2017). |

Selected Recent Publications (past 2 years only) (9) | R. C. Myers, T. Sierens, W. Witczak-Krempa, "A holographic model for quantum critical responses", JHEP 05 073 (2016). |

Selected Recent Publications (past 2 years only) (10) | W. Witczak-Krempa, "Entanglement susceptibilities and universal geometric entanglement entropy", arXiv:1810.07209, 2018 |

Selected Recent Publications (past 2 years only) (11) | S. Tchoumakov, W. Witczak-Krempa, “Dielectric and electronic properties of three- dimensional Luttinger semimetals with a quadratic band touching”, Physical Review B 100, 075104, 13pp (2019). |

Selected Recent Publications (past 2 years only) (12) | P. Bueno, H. Casini, W. Witczak-Krempa, “Generalizing the entanglement entropy of singular regions in conformal field theories”, J. High Energ. Phys. (2019) 2019: 69, 45pp. |

Selected Recent Publications (past 2 years only) (13) | É. Dupuis, M.B. Paranjape, W. Witczak-Krempa, “Transition from a Dirac spin liquid to an antiferromagnet: Monopoles in a QED3-Gross-Neveu theory”, Physical Review B 100, 094443, 26pp (2019). |

Selected Recent Publications (past 2 years only) (14) | C. Berthiere, W. Witczak-Krempa, “Relating bulk to boundary entanglement”, Physical Review B 100, 235112, 17pp (2019). |

Recent Invited Talks and Lectures (past year only) (1) | “Intrication dans les matériaux quantiques”, Invited lecture, RQÉMP Summer School, Université Bishops, Sherbrooke, Québec, Canada, 2019. |

Recent Invited Talks and Lectures (past year only) (2) | “Entanglement signatures of emergent Dirac fermions: kagome spin liquid & quantum criticality”, Invited seminar, Technical University of Munich, Munich, Germany, 2019. |

Recent Invited Talks and Lectures (past year only) (3) | “Entanglement signatures of emergent Dirac fermions: kagome spin liquid & quantum criticality”, Invited seminar, Ohio State University, Columbus, Ohio, US, 2019. |

Recent Awards, Distinctions, Prizes (past 2 years) (1) | Subvention établissement de nouveaux chercheurs universitaires, FRQNT, May 2018 |

Recent Awards, Distinctions, Prizes (past 2 years)(2) | "Le petit Nobel", best undergraduate teacher in the physics department, 2019. |

Recent conferences organized or co-organized (past 2 years only) (1) | Quantum Theory and Symmetry XI, CRM, July 1-5, 2019. |