Regensburg 2022 – wissenschaftliches Programm

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QI: Fachverband Quanteninformation

QI 10: Quantum Simulation and Many-Body Systems

QI 10.9: Vortrag

Donnerstag, 8. September 2022, 12:00–12:15, H9

Characterizing quantum correlations among magnons in antiferromagnets
— •Vahid Azimi Mouoslou^1,2, Yuefei Liu³, Anders Bergman¹, Anna Delin³, Olle Eriksson^1,4, Manuel Pereiro¹, Danny Thonig⁴, and Erik Sjöqvist¹ — ¹Uppsala University, Uppsala, Sweden — ²University of Isfahan, Isfahan, Iran — ³KTH Royal Institute of Technology, Stockholm, Sweden — ⁴Örebro University, Örebro, Sweden

Quantum magnonics provides promising hybrid platforms for accessing unique quantum phenomena and using them to realize stable and energy-efficient nanoscale quantum technologies. Clearly, quantum correlations are the major non-classical resources in such quantum systems. Here we discuss how an antiferromagnetic coupling generates experimentally detectable bipartite continuous variable magnon-entanglement [1, 2]. We present feasible experimental setups based on hybrid magnon+X systems to quantify the demonstrated magnon-entanglement through an uncertainty relation.
[1] V. Azimi-Mousolou, et al., Hierarchy of magnon mode entanglement in antiferromagnets, Phys. Rev. B 102, 224418 (2020).

[2] V. Azimi-Mousolou, et al., Magnon-magnon entanglement and its quantification via a microwave cavity, Phys. Rev. B 104, 224302 (2021).