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Volumn 81, Issue 7, 2010, Pages

Mass-flow error in the numerical renormalization-group method and the critical behavior of the sub-Ohmic spin-boson model

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EID: 77954858703     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.81.075122     Document Type: Article
Times cited : (44)

References (33)
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    • The Bose-Fermi Kondo model with a metallic bath density of states of fermions and an Ising-symmetric bosonic bath is believed to have the same critical properties as the spin-boson model because the fermionic bath can be bosonized by standard techniques, leading to a dissipative Ohmic bath in addition to the Ising-symmetric bath. If the latter has a sub-Ohmic density of states, it dominates the critical properties, which then are those of the sub-Ohmic spin-boson model. Results from NRG calculations (Ref.) are consistent with this expectation.
    • The Bose-Fermi Kondo model with a metallic bath density of states of fermions and an Ising-symmetric bosonic bath is believed to have the same critical properties as the spin-boson model because the fermionic bath can be bosonized by standard techniques, leading to a dissipative Ohmic bath in addition to the Ising-symmetric bath. If the latter has a sub-Ohmic density of states, it dominates the critical properties, which then are those of the sub-Ohmic spin-boson model. Results from NRG calculations (Ref.) are consistent with this expectation.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.