A Panorama of Tensor Networks: from Condensed Matter to Quantum Field Theory, Holography and Beyond

Phases of the Maple Leaf Antiferromagnet

7 Oct 2025, 16:45

2h 30m

Collegium Nowodworskiego (Jagiellonian University)

Poster Presentation Poster Session

Speaker

Paul Ebert (Max Planck Institute for The Physics of Complex Systems (Dresden, Germany))

Description

The Heisenberg antiferromagnet on the maple leaf lattice is a recent candidate host for spin liquid phases ([1, 2, 3]) and can also be realized experimentally both in natural minerals ([4, 5]) as well as synthetic compounds ([6, 7]). Employing exact diagonalization we investigate different ground states and map out the phase diagram under variations of three symmetry-inequivalent nearest-neighbor bonds. In particular, we focus on the presence of long-range magnetic order and the transition into the dimer phase, trying to elucidate conflicting reports originating from differing techniques (see e.g. [3] vs. [8]) through exact results. Lastly, we discuss the possibility of emergent quantum spin liquids in the nearest-neighbor antiferromagnet.

References:
[1]: Gresista et al., Phys. Rev. B, Vol. 108, L241116 (2023)
[2]: Beck et al., Phys. Rev. B, Vo. 109, 184422 (2024)
[3]: Schmoll et al., arXiv:2407.07145
[4]: Fennell et al., J. Phys. Condens. Matter 23 (2011)
[5]: Haraguchi et al., Phys. Rev. B, Vol. 104, 174439 (2021)
[6]: Cave et al., Angew. Chem., Vol. 45 (2006)
[7]: Aguilar-Maldonado et al., arXiv:2410.16951
[8]: Farnell et al., Phys. Rev. B., Vol 84, 104406 (2011)