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Mar 29, 2021 at 14:41 vote accept Hezzuappu
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Mar 22, 2021 at 3:00 history tweeted twitter.com/StackPhysics/status/1373831916231782402
Mar 22, 2021 at 1:51 answer added Chiral Anomaly timeline score: 2
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Mar 16, 2021 at 16:01 comment added Ján Lalinský Not sure about applicability in your context, but often interaction hamiltonian is 2x2 matrix with zero diagonal and $\rho(0)$ is 2x2 matrix with single 1 for the ground state and all other entries are zero. Then you can verify the relation $tr_E([H_I,\rho(0)]=0$ explicitly, the commutator has zeros on its diagonal.
Mar 16, 2021 at 14:20 history asked Hezzuappu CC BY-SA 4.0