Abstract
A multipolar Kondo model of an impurity spin S I =3/2 interacting with conduction electrons with spin s c =3/2 is investigated using boundary conformal field theory. A two-channel Kondo (2CK)-like non-Fermi liquid (NFL) under the particle-hole symmetry is derived explicitly using a “superspin absorption” in the sector of a hidden symmetry, SO(5). We discuss the difference between the usual spin-1/2 2CK NFL fixed point and the present one. In particular, we find that, unlike the usual 2CK model, the low temperature impurity specific heat is proportional to temperature.
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