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Theoretical and Computational Physics (LTC)

  • Organisational structure
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    • Computational Physics Group
    • Condensed Matter Theory Group
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Computational Physics Group

torus spectroscopy

Our group is interested in the theoretical and computational exploration of correlated quantum matter in condensed matter and AMO systems. We strive to understand novel phases of matter, quantum critical phenomena and quantum systems out of equilibrium. Our research builds on a blend of concepts and ideas from condensed matter theory, statistical mechanics, quantum field theory and quantum information. We also develop and implement innovative computational algorithms in order to perform large-scale computer simulations on high-performance computers.

Our group was previously hosted at the University of Innsbruck (2011-2021) and the corresponding webpage can be found here. The group will now be located both at the Paul Scherrer Institute and at the LLTCP Lab at EPFL.

Group Members

Person Position Phone Nr. Email
Prof. Dr. Andreas Martin Läuchli Herzig
+41 56 310 42 60
andreas.laeuchli@psi.ch
Dr. Bruce George Alexander Normand
+41 56 310 22 97
bruce.normand@psi.ch
Dr. Samuel Gozel
+41 56 310 57 05
samuel.gozel@psi.ch
Artem Rakcheev
+41 56 310 28 46
artem.rakcheev@psi.ch

Publication List

  • Chen C, Bornet G, Bintz M, Emperauger G, Leclerc L, Liu VS, et al.
    Continuous symmetry breaking in a two-dimensional Rydberg array
    Nature. 2023; 616: 691 (21 pp.). https://doi.org/10.1038/s41586-023-05859-2
    DORA PSI
  • Jamadagni A, Kazemi J, Weimer H
    Learning of error statistics for the detection of quantum phases
    Physical Review B. 2023; 107(7): 075146 (9 pp.). https://doi.org/10.1103/PhysRevB.107.075146
    DORA PSI
  • Li J, Müller M, Kim AJ, Läuchli AM, Werner P
    Twisted chiral superconductivity in photodoped frustrated Mott insulators
    Physical Review B. 2023; 107(20): 205115 (15 pp.). https://doi.org/10.1103/PhysRevB.107.205115
    DORA PSI
  • Murakami Y, Takayoshi S, Kaneko T, Läuchli AM, Werner P
    Spin, charge, and η-spin separation in one-dimensional photodoped Mott insulators
    Physical Review Letters. 2023; 130(10): 106501 (7 pp.). https://doi.org/10.1103/PhysRevLett.130.106501
    DORA PSI
  • Schuler M, Henry LP, Lu YM, Läuchli AM
    Emergent XY* transition driven by symmetry fractionalization and anyon condensation
    SciPost Physics. 2023; 14(1): (36 pp.). https://doi.org/10.21468/SciPostPhys.14.1.001
    DORA PSI
  • Wilhelm PH, Lang TC, Scheurer MS, Läuchli AM
    Non-coplanar magnetism, topological density wave order and emergent symmetry at half-integer filling of moiré Chern bands
    SciPost Physics. 2023; 14(3): (32 pp.). https://doi.org/10.21468/SciPostPhys.14.3.040
    DORA PSI
  • Yarmohammadi M, Krebs M, Uhrig GS, Normand B
    Strong-coupling magnetophononics: self-blocking, phonon-bitriplons, and spin-band engineering
    Physical Review B. 2023; 107(17): 174415 (23 pp.). https://doi.org/10.1103/PhysRevB.107.174415
    DORA PSI
  • De Marco J, Tolle L, Halati C-M, Sheikhan A, Läuchli AM, Kollath C
    Level statistics of the one-dimensional ionic Hubbard model
    Physical Review Research. 2022; 4(3): 033119 (11 pp.). https://doi.org/10.1103/PhysRevResearch.4.033119
    DORA PSI
  • Fogh E, Mustonen O, Babkevich P, Katukuri VM, Walker HC, Mangin-Thro L, et al.
    Randomness and frustration in a S = 1/2 square-lattice Heisenberg antiferromagnet
    Physical Review B. 2022; 105(18): 184410 (7 pp.). https://doi.org/10.1103/PhysRevB.105.184410
    DORA PSI
  • Hasik J, Mbeng GB, Capponi S, Becca F, Läuchli AM
    Symmetric projected entangled-pair states analysis of a phase transition in coupled spin-1/2 ladders
    Physical Review B. 2022; 106(12): 125154 (10 pp.). https://doi.org/10.1103/PhysRevB.106.125154
    DORA PSI
  • Nikitin SE, Fåk B, Krämer KW, Fennell T, Normand B, Läuchli AM, et al.
    Thermal evolution of Dirac magnons in the honeycomb ferromagnet CrBr3
    Physical Review Letters. 2022; 129(12): 127201 (6 pp.). https://doi.org/10.1103/PhysRevLett.129.127201
    DORA PSI
  • Rakcheev A, Läuchli AM
    Dynamics of a pair of magnetic dipoles with nonreciprocal interactions due to a moving conductor
    Physical Review B. 2022; 106(17): 174435 (16 pp.). https://doi.org/10.1103/PhysRevB.106.174435
    DORA PSI
  • Rakcheev A, Läuchli AM
    Estimating heating times in periodically driven quantum many-body systems via avoided crossing spectroscopy
    Physical Review Research. 2022; 4(4): 043174 (18 pp.). https://doi.org/10.1103/PhysRevResearch.4.043174
    DORA PSI
  • Testa L, Babkevich P, Kato Y, Kimura K, Favre V, Rodriguez-Rivera JA, et al.
    Spin dynamics in the square-lattice cupola system Ba(TiO)Cu4(PO4)4
    Physical Review B. 2022; 105(21): 214406 (13 pp.). https://doi.org/10.1103/PhysRevB.105.214406
    DORA PSI
  • Weber L, Honecker A, Normand B, Corboz P, Mila F, Wessel S
    Quantum Monte Carlo simulations in the trimer basis: first-order transitions and thermal critical points in frustrated trilayer magnets
    SciPost Physics. 2022; 12(2): 054 (29 pp.). https://doi.org/10.21468/SCIPOSTPHYS.12.2.054
    DORA PSI
  • Pocs CA, Siegfried PE, Xing J, Sefat AS, Hermele M, Normand B, et al.
    Systematic extraction of crystal electric-field effects and quantum magnetic model parameters in triangular rare-earth magnets
    Physical Review Research. 2021; 3(4): 043202 (16 pp.). https://doi.org/10.1103/PhysRevResearch.3.043202
    DORA PSI

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Contact

Computational Physics Group
Laboratory for Theoretical and Computational Physics
Paul Scherrer Institute
5232 Villigen PSI
Switzerland

Group leader
Prof. Dr. Andreas Läuchli (EPFL)
Telephone: +41 56 310 42 60
E-mail: andreas.laeuchli@psi.ch

Assistant
Nadja Ebner
Phone: +41 56 310 4288
nadja.ebner@psi.ch

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