Thermodynamics of the dissipative two-state system: a Bethe Ansatz study

Details Thermodynamics of the dissipative two-state system: a Bethe Ansatz study Thermodynamics of the dissipative two-state system: a Bethe Ansatz study

1999-03-05

arxiv.org/abs/cond-mat/9903104v2

Phys. Rev. B59, 12398-418 (1999)

Physics

Condensed Matter

Strongly Correlated Electrons

24 pages, 32 PS figures. Typos corrected, final version

Scientific paper

10.1103/PhysRevB.59.12398

The thermodynamics of the dissipative two-state system is calculated exactly for all temperatures and level asymmetries for the case of Ohmic dissipation. We exploit the equivalence of the two-state system to the anisotropic Kondo model and extract the thermodynamics of the former by solving the thermodynamic Bethe Ansatz equations of the latter. The universal scaling functions for the specific heat $C_{\alpha}(T)$ and static dielectric susceptibility $\chi_{\alpha}(T)$ are extracted for all dissipation strengths $0<\alpha<1$ for both symmetric and asymmetric two-state systems. The logarithmic corrections to these quantities at high temperatures are found in the Kondo limit $\alpha\to 1^{-}$, whereas for $\alpha< 1$ we find the expected power law temperature dependences with the powers being functions of the dissipative coupling $\alpha$. The low temperature behaviour is always that of a Fermi liquid.

Affiliated with

Also associated with

No associations

Rating

Thermodynamics of the dissipative two-state system: a Bethe Ansatz study does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Thermodynamics of the dissipative two-state system: a Bethe Ansatz study, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermodynamics of the dissipative two-state system: a Bethe Ansatz study will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-617383