Colloquium : Planckian dissipation in metals
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The appearance of the Planckian time τP1=ℏ/kBT is reviewed in both conventional and unconventional metals. A pedagogical discussion of the various different timescales (quasiparticle, transport, many-body) that characterize metals is given, with an emphasis on conditions under which these times are the same or different. The possibility of a Planckian bound on dissipation is discussed from both a quasiparticle and a many-body perspective. Planckian quasiparticles can arise naturally from a combination of inelastic scattering and mass renormalization. Many-body dynamics, on the other hand, is constrained by the basic timescales and length scales of local thermalization.
Hartnoll , S A & MacKenzie , A P 2022 , ' Colloquium : Planckian dissipation in metals ' , Reviews of Modern Physics , vol. 94 , no. 4 , 041002 . https://doi.org/10.1103/RevModPhys.94.041002
Reviews of Modern Physics
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DescriptionFunding: The work of S. A. H. was partially supported by U.S. DOE Award No. DE-SC0018134, by Simons Investigator Grant No. 620869, and by STFC Consolidated Grant No. ST/T000694/1. A. P. M. acknowledges the support of the Max Planck Society.
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