Prof. Dr. Kai Phillip Schmidt

Chair of Theoretical Physics

Professors

Address

Staudtstraße 7 91058 Erlangen

Contact

Email: kai.phillip.schmidt@fau.de

Posts

Publications

Vieweg M., Kott V., Lenke L., Schellenberger A., Schmidt KP.:
Absence of topological order in the U(1) checkerboard toric code
In: SciPost Physics 20 (2026), Article No.: 56
ISSN: 2542-4653
DOI: 10.21468/SciPostPhys.20.2.056

Adelhardt P., Duft A., Schmidt KP.:
Quantum-critical and dynamical properties of the XXZ bilayer with long-range interactions
In: Physical Review B 111 (2025), Article No.: 024409
ISSN: 0163-1829
DOI: 10.1103/PhysRevB.111.024409
Ghosh P., Koziol J., Nyckees S., Schmidt KP., Mila F.:
Symmetry breaking and competing valence bond states in the star lattice Heisenberg antiferromagnet
In: Physical Review B 112 (2025), p. 1444231-14442311
ISSN: 0163-1829
DOI: 10.1103/nbjt-hlvx
Krämer C., Hörmann M., Schmidt KP.:
Quantum Monte Carlo study of the bond- and site-diluted transverse-field Ising model
In: Physical Review B 112 (2025), Article No.: 014206
ISSN: 0163-1829
DOI: 10.1103/wsv6-t3rl
Vieweg M., Schmidt KP.:
Fracton and topological order in the XY checkerboard toric code
In: Physical Review Research 7 (2025), Article No.: L032048
ISSN: 2643-1564
DOI: 10.1103/msdd-ckq7
Yadav L., Rufino A., Bag R., Ennis M., Koziol J., Cruz CD., Kolesnikov AI., Garlea VO., Taddei KM., Graf D., Schmidt KP., Mila F., Haravifard S.:
Observation of Unprecedented Fractional Magnetization Plateaus in a New Shastry-Sutherland Ising Compound
In: Physical Review X 15 (2025), Article No.: 041045
ISSN: 2160-3308
DOI: 10.1103/9ynf-xx1t

Adelhardt P., Koziol J., Langheld A., Schmidt KP.:
Monte Carlo Based Techniques for Quantum Magnets with Long-Range Interactions
In: Entropy 26 (2024), p. 401
ISSN: 1099-4300
DOI: 10.3390/e26050401
Baßler N., Aiello A., Schmidt KP., Genes C., Reitz M.:
Metasurface-Based Hybrid Optical Cavities for Chiral Sensing
In: Physical Review Letters 132 (2024), Article No.: 043602
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.132.043602
Baßler N., Varma I., Proske M., Windpassinger P., Schmidt KP., Genes C.:
Cooperative effects in dense cold atomic gases including magnetic dipole interactions
In: Physical Review Research 6 (2024), Article No.: 023147
ISSN: 2643-1564
DOI: 10.1103/PhysRevResearch.6.023147
Caci N., Hering DB., Walther M., Schmidt KP., Wessel S., Uhrig GS.:
Quantitative description of long-range order in the spin- 12 XXZ antiferromagnet on the square lattice
In: Physical Review B 110 (2024), Article No.: 054411
ISSN: 0163-1829
DOI: 10.1103/PhysRevB.110.054411
Duft A., Koziol J., Adelhardt P., Mühlhauser M., Schmidt KP.:
Order-by-disorder in the antiferromagnetic J1-J2-J3 transverse-field Ising model on the ruby lattice
In: Physical Review Research 6 (2024), Article No.: 033339
ISSN: 2643-1564
DOI: 10.1103/PhysRevResearch.6.033339
Fadler P., Schmidt KP., Li J., Eckstein M.:
Engineering photon-mediated long-range spin interactions in Mott insulators
In: Physical Review B 109 (2024), Article No.: 085149
ISSN: 0163-1829
DOI: 10.1103/PhysRevB.109.085149
Hering DB., Walther M., Schmidt KP., Uhrig GS.:
Quantum melting of long-range ordered quantum antiferromagnets investigated by momentum-space continuous similarity transformations
In: Physical Review B 110 (2024), Article No.: 085115
ISSN: 0163-1829
DOI: 10.1103/PhysRevB.110.085115
Jahromi SS., Hörmann M., Adelhardt P., Fey S., Karamnejad H., Orús R., Schmidt KP.:
Kitaev honeycomb antiferromagnet in a field: quantum phase diagram for general spin
In: Communications Physics 7 (2024), Article No.: 319
ISSN: 2399-3650
DOI: 10.1038/s42005-024-01809-0
Kott V., Mühlhauser M., Koziol J., Schmidt KP.:
Quantum robustness of the toric code in a parallel field on the honeycomb and triangular lattice
In: SciPost Physics 17 (2024), Article No.: 053
ISSN: 2542-4653
DOI: 10.21468/SciPostPhys.17.2.053
Koziol J., Morigi G., Schmidt KP.:
Quantum phases of hardcore bosons with repulsive dipolar density-density interactions on two-dimensional lattices
In: SciPost Physics 17 (2024), Article No.: 111
ISSN: 2542-4653
DOI: 10.21468/SciPostPhys.17.4.111
Koziol J., Mühlhauser M., Schmidt KP.:
Order-by-disorder and long-range interactions in the antiferromagnetic transverse-field Ising model on the triangular lattice—A perturbative point of view
In: Results in Physics 61 (2024), Article No.: 107794
ISSN: 2211-3797
DOI: 10.1016/j.rinp.2024.107794
Krämer C., Koziol J., Langheld A., Hörmann M., Schmidt KP.:
Quantum-critical properties of the one- and two-dimensional random transverse-field Ising model from large-scale quantum Monte Carlo simulations
In: SciPost Physics 17 (2024), Article No.: 061
ISSN: 2542-4653
DOI: 10.21468/SciPostPhys.17.2.061
Mühlhauser M., Kott V., Schmidt KP.:
Incorporating non-local anyonic statistics into a graph decomposition
In: SciPost Physics Core 7 (2024), Article No.: 031
ISSN: 2666-9366
DOI: 10.21468/SciPostPhysCore.7.2.031
Schamriß L., Walther M., Schmidt KP.:
Extracting quantum-critical properties from directly evaluated enhanced perturbative continuous unitary transformations
In: SciPost Physics 17 (2024), Article No.: 094
ISSN: 2542-4653
DOI: 10.21468/SciPostPhys.17.3.094
Schellenberger A., Schmidt KP.:
(Almost) everything is a Dicke model - Mapping non-superradiant correlated light-matter systems to the exactly solvable Dicke model
In: SciPost Physics Core 7 (2024), Article No.: 038
ISSN: 2666-9366
DOI: 10.21468/SciPostPhysCore.7.3.038
Sumeet S., Hörmann M., Schmidt KP.:
Hybrid quantum-classical algorithm for the transverse-field Ising model in the thermodynamic limit
In: Physical Review B 110 (2024), Article No.: 155128
ISSN: 0163-1829
DOI: 10.1103/PhysRevB.110.155128
Wiedmann R., Lenke L., Mühlhauser M., Schmidt KP.:
Absence of fractal quantum criticality in the quantum Newman-Moore model
In: Physical Review Research 6 (2024), Article No.: 013191
ISSN: 2643-1564
DOI: 10.1103/PhysRevResearch.6.013191

Adelhardt P., Schmidt KP.:
Continuously varying critical exponents in long-range quantum spin ladders
In: SciPost Physics 15 (2023), Article No.: 087
ISSN: 2542-4653
DOI: 10.21468/SciPostPhys.15.3.087
Baßler N., Reitz M., Schmidt KP., Genes C.:
Linear optical elements based on cooperative subwavelength emitter arrays
In: Optics Express 31 (2023), p. 6003-6026
ISSN: 1094-4087
DOI: 10.1364/OE.476830
Hörmann M., Schmidt KP.:
Projective cluster-additive transformation for quantum lattice models
In: SciPost Physics 15 (2023), Article No.: 097
ISSN: 2542-4653
DOI: 10.21468/SciPostPhys.15.3.097
Koziol J., Duft A., Morigi G., Schmidt KP.:
Systematic analysis of crystalline phases in bosonic lattice models with algebraically decaying density-density interactions
In: SciPost Physics 14 (2023), Article No.: 136
ISSN: 2542-4653
DOI: 10.21468/SciPostPhys.14.5.136
Lenke L., Schellenberger A., Schmidt KP.:
Series expansions in closed and open quantum many-body systems with multiple quasiparticle types
In: Physical Review A 108 (2023), Article No.: 013323
ISSN: 1050-2947
DOI: 10.1103/PhysRevA.108.013323
Rohn J., Schmidt KP., Genes C.:
Classical phase synchronization in dissipative non-Hermitian coupled systems
In: Physical Review A 108 (2023), Article No.: 023721
ISSN: 1050-2947
DOI: 10.1103/PhysRevA.108.023721
Tseng Y., Paris E., Schmidt KP., Zhang W., Asmara TC., Bag R., Strocov VN., Singh S., Schlappa J., Rønnow HM., Schmitt T.:
Momentum-resolved spin-conserving two-triplon bound state and continuum in a cuprate ladder
In: Communications Physics 6 (2023), Article No.: 138
ISSN: 2399-3650
DOI: 10.1038/s42005-023-01250-9
Walther M., Hering DB., Uhrig GS., Schmidt KP.:
Continuous similarity transformation for critical phenomena: Easy-axis antiferromagnetic XXZ model
In: Physical Review Research 5 (2023)
ISSN: 2643-1564
DOI: 10.1103/PhysRevResearch.5.013132

Hong T., Ying T., Huang Q., Dissanayake SE., Qiu Y., Turnbull MM., Podlesnyak AA., Wu Y., Cao H., Liu Y., Umehara I., Gouchi J., Uwatoko Y., Matsuda M., Tennant DA., Chern GW., Schmidt KP., Wessel S.:
Evidence for pressure induced unconventional quantum criticality in the coupled spin ladder antiferromagnet C9H18N2CuBr4
In: Nature Communications 13 (2022)
ISSN: 2041-1723
DOI: 10.1038/s41467-022-30769-8
Langheld A., Koziol J., Adelhardt P., Kapfer S., Schmidt KP.:
Scaling at quantum phase transitions above the upper critical dimension
In: SciPost Physics 13 (2022), Article No.: 088
ISSN: 2542-4653
DOI: 10.21468/SciPostPhys.13.4.088
Mühlhauser M., Schmidt KP.:
Linked cluster expansions via hypergraph decompositions
In: Physical Review E 105 (2022)
ISSN: 2470-0045
DOI: 10.1103/PhysRevE.105.064110
Mühlhauser M., Schmidt KP., Vidal J., Walther M.:
Competing topological orders in three dimensions: X-cube versus toric code
In: SciPost Physics 12 (2022), Article No.: 069
ISSN: 2542-4653
DOI: 10.21468/SCIPOSTPHYS.12.2.069
Schamriss L., Lenke L., Mühlhauser M., Schmidt KP.:
Quantum phase transitions in the K-layer Ising toric code
In: Physical Review B 105 (2022)
ISSN: 0163-1829
DOI: 10.1103/PhysRevB.105.184425
Schellenberger A., Hörmann M., Schmidt KP.:
Dynamic structure factor of the antiferromagnetic Kitaev model in large magnetic fields
In: Physical Review B 106 (2022), Article No.: 104403
ISSN: 0163-1829
DOI: 10.1103/PhysRevB.106.104403

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