TY - JOUR
T1 - Colloquium
T2 - Planckian dissipation in metals
AU - Hartnoll, S.A.
AU - MacKenzie, A.P.
N1 - Funding: 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.
PY - 2022/11/30
Y1 - 2022/11/30
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/85145346738
U2 - 10.1103/RevModPhys.94.041002
DO - 10.1103/RevModPhys.94.041002
M3 - Review article
SN - 0034-6861
VL - 94
JO - Reviews of Modern Physics
JF - Reviews of Modern Physics
IS - 4
M1 - 041002
ER -