113 citations · 536 across the 24 of their papers we have counts for
8 papers · 1 filter
Systematic compactification of the two-channel Kondo model. III. Extended field-theoretic renormalization group analysis
Aleksandar Ljepoja, C. J. Bolech, Nayana Shah
We carry out a field-theoretical renormalization group procedure based on the Callan-Symanzik equation to calculate the detailed flow for the (multi) two-channel Kondo model and it…
Systematic compactification of the two-channel Kondo model. II. Comparative study of scaling and universality
Aleksandar Ljepoja, Nayana Shah, C. J. Bolech
Following up on the systematic compactification of the two-channel Kondo model (and its multichannel extensions; arXiv:2308.03569 (companion paper I)) and the demonstration of its…
Systematic compactification of the two-channel Kondo model. I. Consistent bosonization-debosonization approach and exact comparisons
Aleksandar Ljepoja, C. J. Bolech, Nayana Shah
Capitalizing on recent work, that clarifies the consistent use of bosonization-debosonization methods to study Kondo-type quantum impurity models even in nonequilibrium settings, w…
Consistent bosonization-debosonization II: The two-lead Kondo problem and the fate of its non-equilibrium Toulouse point
C. J. Bolech, Nayana Shah
Following the development of a scheme to bosonize and debosonize consistently [N. Shah and C.J. Bolech, Phys. Rev B 93, 085440 (2016); arXiv:1508.03078], we present in detail the T…
Consistent bosonization-debosonization I: A resolution of the non-equilibrium transport puzzle
Nayana Shah, C. J. Bolech
We critically reexamine the bosonization-debosonization procedure for systems including certain types of localized features (although more general scenarios are possible). By focus…
Crystalline phases in chiral ferromagnets: Destabilization of helical order
I. Fischer, N. Shah, A. Rosch
In chiral ferromagnets, weak spin-orbit interactions twist the ferromagnetic order into spirals, leading to helical order. We investigate an extended Ginzburg-Landau theory of such…
Superconductivity, phase fluctuations and the c-axis conductivity of bilayer high temperature superconductors
N. Shah, A. J. Millis
We present a theory of the interplane conductivity of bilayer high temperature superconductors, focusing on the effect of quantal and thermal fluctuations on the oscillator strengt…
Application of the scattering rate sum-rule to the interplane optical conductivity of high temperature superconductors: pseudogap and bi-layer effects
N. Shah, A. J. Millis
We use a recently proposed model of the interplane conductivity of high temperature superconductors to investigate the `scattering rate sum-rule' introduced by Basov and co-workers…