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
Head of the Laboratory for Theoretical and Computational Physics (LTC)
Group leader of the Computational Physics Group >>
Full Professor of Physics at EPFL
Building/Room: WHGA/131
Tenure Track Scientist
Computational Physics Group >>
Building/Room: WHGA/133
Postdoc
Computational Physics Group >>
Building/Room: WHGA/135
Senior Scientist
Computational Physics Group >>
Building/Room: WHGA/133
PhD student
Computational Physics Group >>
Building/Room: WHGA/129
PhD student
Computational Physics Group >>
Building/Room: WHGA/129
Publication List
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Andersen TI, Astrakhantsev N, Karamlou AH, Berndtsson J, Motruk J, Szasz A, et al.
Thermalization and criticality on an analogue–digital quantum simulator
Nature. 2025; 638(8049): 79-85. https://doi.org/10.1038/s41586-024-08460-3
DORA PSI -
Dey A, Mross DF
Entanglement spectroscopy of anomalous surface states
Physical Review Research. 2024; 6(2): 023047 (10 pp.). https://doi.org/10.1103/PhysRevResearch.6.023047
DORA PSI -
Fan Y, Xi N, Liu C, Normand B, Yu R
Field-controlled multicritical behavior and emergent universality in fully frustrated quantum magnets
npj Quantum Materials. 2024; 9(1): 25 (9 pp.). https://doi.org/10.1038/s41535-024-00636-4
DORA PSI -
Fan Z, Zhang JF, Zhan B, Lv D, Jiang XY, Normand B, et al.
Superconductivity in nickelate and cuprate superconductors with strong bilayer coupling
Physical Review B. 2024; 110(2): 024514 (10 pp.). https://doi.org/10.1103/PhysRevB.110.024514
DORA PSI -
Fogh E, Nayak M, Prokhnenko O, Bartkowiak M, Munakata K, Soh JR, et al.
Field-induced bound-state condensation and spin-nematic phase in SrCu2(BO3)2 revealed by neutron scattering up to 25.9 T
Nature Communications. 2024; 15(1): 442 (10 pp.). https://doi.org/10.1038/s41467-023-44115-z
DORA PSI -
Fogh E, Giriat G, Zayed ME, Piovano A, Boehm M, Steffens P, et al.
Spin waves and three dimensionality in the high-pressure antiferromagnetic phase of SrCu2 (BO3)2
Physical Review Letters. 2024; 133(24): 246702 (7 pp.). https://doi.org/10.1103/PhysRevLett.133.246702
DORA PSI -
Gangapuram AJ, Läuchli A, Hempel C
Benchmarking quantum computer simulation software packages: state vector simulators
SciPost Physics Core. 2024; 7(4): 075 (28 pp.). https://doi.org/10.21468/SciPostPhysCore.7.4.075
DORA PSI -
Huang RZ, Zhang L, Läuchli AM, Haegeman J, Verstraete F, Vanderstraeten L
Emergent conformal boundaries from finite-entanglement scaling in matrix product states
Physical Review Letters. 2024; 132(8): 086503 (6 pp.). https://doi.org/10.1103/PhysRevLett.132.086503
DORA PSI -
Jamadagni A, Kazemi J, Bhattacharyya A
Kibble-Zurek mechanism and errors of gapped quantum phases
Physical Review B. 2024; 110(4): 045140 (17 pp.). https://doi.org/10.1103/PhysRevB.110.045140
DORA PSI -
Li C, Hu Z, Hou X, Xu S, Wu Z, Du K, et al.
Molecular intercalation in the van der Waals antiferromagnets FePS3 and NiPS3
Physical Review B. 2024; 109(18): 184407 (11 pp.). https://doi.org/10.1103/PhysRevB.109.184407
DORA PSI -
Philippe J, Elson F, Casati NPM, Sanz S, Metzelaars M, Shliakhtun O, et al.
(C5H9NH3)2CuBr4: A metal-organic two-ladder quantum magnet
Physical Review B. 2024; 110(9): 094101 (13 pp.). https://doi.org/10.1103/PhysRevB.110.094101
DORA PSI -
Wang J, Normand B, Liu ZX
Multinode quantum spin liquids in extended Kitaev honeycomb models
npj Quantum Materials. 2024; 9: 94 (11 pp.). https://doi.org/10.1038/s41535-024-00704-9
DORA PSI -
Wietek A, Capponi S, Läuchli AM
Quantum electrodynamics in 2+1 dimensions as the organizing principle of a triangular lattice antiferromagnet
Physical Review X. 2024; 14(2): 021010 (16 pp.). https://doi.org/10.1103/PhysRevX.14.021010
DORA PSI -
Wilhelm PH, Läuchli AM, Scheurer MS
Ideal Chern bands with strong short-range repulsion: applications to correlated metals, superconductivity, and topological order
Physical Review Research. 2024; 6(4): 043240 (20 pp.). https://doi.org/10.1103/PhysRevResearch.6.043240
DORA PSI -
Wilhelm PH, Kwan YH, Läuchli AM, Parameswaran SA
Supersymmetry on the honeycomb lattice: Resonating charge stripes, superfrustration, and domain walls
Physical Review B. 2024; 110(16): 165124 (14 pp.). https://doi.org/10.1103/PhysRevB.110.165124
DORA PSI -
Wu D, Rossi R, Vicentini F, Astrakhantsev N, Becca F, Cao X, et al.
Variational benchmarks for quantum many-body problems
Science. 2024; 386(6719): 296-301. https://doi.org/10.1126/science.adg9774
DORA PSI -
Xie T, Gozel S, Xing J, Zhao N, Avdoshenko SM, Wu L, et al.
Quantum spin dynamics due to strong Kitaev interactions in the triangular-lattice antiferromagnet CsCeSe2
Physical Review Letters. 2024; 133(9): 096703 (8 pp.). https://doi.org/10.1103/PhysRevLett.133.096703
DORA PSI -
Xie T, Zhao N, Gozel S, Xing J, Avdoshenko SM, Taddei KM, et al.
Stripe magnetic order and field-induced quantum criticality in the perfect triangular-lattice antiferromagnet CsCeSe2
Physical Review B. 2024; 110(5): 054445 (14 pp.). https://doi.org/10.1103/PhysRevB.110.054445
DORA PSI -
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 -
D'Emidio J, Eberharter AA, Läuchli AM
Diagnosing weakly first-order phase transitions by coupling to order parameters
SciPost Physics. 2023; 15(2): 061 (24 pp.). https://doi.org/10.21468/SciPostPhys.15.2.061
DORA PSI -
Eberharter AA, Vanderstraeten L, Verstraete F, Läuchli AM
Extracting the speed of light from matrix product states
Physical Review Letters. 2023; 131(22): 226502 (7 pp.). https://doi.org/10.1103/PhysRevLett.131.226502
DORA PSI -
Giorgianni F, Wehinger B, Allenspach S, Colonna N, Vicario C, Puphal P, et al.
Ultrafast frustration breaking and magnetophononic driving of singlet excitations in a quantum magnet
Physical Review B. 2023; 107(18): 184440 (19 pp.). https://doi.org/10.1103/PhysRevB.107.184440
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 -
Rakcheev A, Läuchli AM
Diabatic quantum and classical annealing of the Sherrington-Kirkpatrick model
Physical Review A. 2023; 107(6): 062602 (19 pp.). https://doi.org/10.1103/PhysRevA.107.062602
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): 001 (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): 040 (32 pp.). https://doi.org/10.21468/SciPostPhys.14.3.040
DORA PSI -
Xie T, Eberharter AA, Xing J, Nishimoto S, Brando M, Khanenko P, et al.
Complete field-induced spectral response of the spin-1/2 triangular-lattice antiferromagnet CsYbSe2
npj Quantum Materials. 2023; 8: 48 (9 pp.). https://doi.org/10.1038/s41535-023-00580-9
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