Description
Altermagnetism is an emerging form of compensated magnetism that combines vanishing net magnetization with momentum-dependent spin polarization and spin splitting. While most studies to date have focused on electronic materials, recent advances in ultracold atomic gases offer new opportunities to realize and investigate altermagnetic physics in highly controllable quantum many-body systems.
In this talk, I will discuss recent theoretical developments on altermagnetism in ultracold quantum gases. Using minimal continuum and lattice models, we explore how altermagnetic symmetry modifies the properties of interacting quantum matter, including collective excitations, quantum fluctuations, correlation functions, and few-body bound states. Particular emphasis will be placed on the interplay between momentum-space spin polarization and many-body coherence in Bose-Einstein condensates [1].
Ultracold gases provide a versatile platform for engineering altermagnetic band structures, tuning interactions, and probing emergent quantum phenomena beyond the reach of conventional solid-state materials. These developments open new directions for investigating superfluidity, pairing, and other collective effects in altermagnetic quantum matter.
[1] Jia Wang, Zhao Liu, Xia-Ji Liu, and Hui Hu, Phys. Rev. A 113, 063316 (2026).
| I am the presenting author | Yes |
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