Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2012-01-16
Physics
Condensed Matter
Strongly Correlated Electrons
13 pages, 3 figures, 2 tables
Scientific paper
We analyze non-Fermi liquid (NFL) properties along a line of critical points in a generalized Yu-Anderson model with one-dimensional local phonons. We find that the critical line connects two different NFLs. One is a NFL in Kondo regime, which is essentially the same as that in a magnetic two-channel Kondo model. The other is a NFL due to hidden SO(5) degrees of freedom in weak electron-electron correlation regime. The fixed point spectra of these two NFLs are identical, which explains why these two are smoothly connected, while the leading irrelevant operators in each of the NFL fixed points are different. We succeed in identifying the SO(5) degrees of freedom and find that the impurity contribution to specific heat is proportional to temperature, and that bipolaron fluctuations, which are coupled electron-phonon fluctuations, diverge logarithmically at low temperatures.
No associations
LandOfFree
Bipolaron-SO(5) Non-Fermi Liquid in a Generalized Yu-Anderson Model with One-dimensional Local Phonons 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 Bipolaron-SO(5) Non-Fermi Liquid in a Generalized Yu-Anderson Model with One-dimensional Local Phonons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bipolaron-SO(5) Non-Fermi Liquid in a Generalized Yu-Anderson Model with One-dimensional Local Phonons will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-409633