2025/01/22 by Niclas Westerberg, Stephen M. Barnett, Westerberg, Niclas +1
Biochemistry, Genetics and Molecular Biology · #FOS: Physical sciences #Geomagnetism and Paleomagnetism Studies #Materials Science (cond-mat.mtrl-sci) #Optics (physics.optics) #Other Condensed Matter (cond-mat.other) #Quantum Physics (quant-ph)
paper · pdf · doi:10.48550/arxiv.2501.13098
openalex publication_date 2025/01/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
There is a long-standing apparent conflict between the existence of diamagnetism and causality as expressed through the Kramers-Kronig relations. In essence, using causality arguments, along with a small number of seemingly well-justified assumptions, one can show that diamagnetism is impossible. However, experiments show diamagnetic responses from magnetic media. We present a resolution to this issue, which also explains the absence of observed dia-electric responses in media. In the process, we expose some of the short-comings in earlier analyses that have kept the paradox alive.