TY - JOUR
T1 - Charge Fractionalization in the Two-Channel Kondo Effect
AU - Landau, L. Aviad
AU - Cornfeld, Eyal
AU - Sela, Eran
N1 - Publisher Copyright:
© 2018 American Physical Society.
PY - 2018/5/4
Y1 - 2018/5/4
N2 - The phenomenon of charge fractionalization describes the emergence of novel excitations with fractional quantum numbers, as predicted in strongly correlated systems such as spin liquids. We elucidate that precisely such an unusual effect may occur in the simplest possible non-Fermi liquid, the two-channel Kondo effect. To bring this concept down to experimental test, we study nonequilibrium transport through a device realizing the charge two-channel Kondo critical point in a recent experiment by Iftikhar et al. [Nature (London) 526, 233 (2015)NATUAS0028-083610.1038/nature15384]. The shot noise at low voltages is predicted to result in a universal Fano factor e∗/e=1/2. This allows us to experimentally identify elementary transport processes of emergent fermions carrying half-integer charge.
AB - The phenomenon of charge fractionalization describes the emergence of novel excitations with fractional quantum numbers, as predicted in strongly correlated systems such as spin liquids. We elucidate that precisely such an unusual effect may occur in the simplest possible non-Fermi liquid, the two-channel Kondo effect. To bring this concept down to experimental test, we study nonequilibrium transport through a device realizing the charge two-channel Kondo critical point in a recent experiment by Iftikhar et al. [Nature (London) 526, 233 (2015)NATUAS0028-083610.1038/nature15384]. The shot noise at low voltages is predicted to result in a universal Fano factor e∗/e=1/2. This allows us to experimentally identify elementary transport processes of emergent fermions carrying half-integer charge.
UR - http://www.scopus.com/inward/record.url?scp=85046540349&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.120.186801
DO - 10.1103/PhysRevLett.120.186801
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AN - SCOPUS:85046540349
SN - 0031-9007
VL - 120
JO - Physical Review Letters
JF - Physical Review Letters
IS - 18
M1 - 186801
ER -