1 citations · 3 across the 8 of their papers we have counts for
10 papers
Breakdown of Monotonic Impurity Entropy Flow in -Symmetric Multichannel Kondo Systems
Pradip Kattel, Abay Zhakenov, Natan Andrei
We study a -symmetric non-Hermitian multichannel Kondo model consisting of a pair of spin- impurities coupled to conduction-electron channels through com…
Boundary phases and thermodynamics of the Kondo spin- chain: from overscreened Kondo to boundary-bound states
Abay Zhakenov, Pradip Kattel, Andreas Gleis +1
We study a spin- impurity coupled to the boundary of a strongly correlated spin- Takhtajan--Babujian chain, an integrable model whose low-energy physics is described by…
Monotonic and non-Nonmonotonic Impurity Entropy flows in a -Symmetric Kondo Model
Pradip Kattel, Abay Zhakenov, Natan Andrei
Quantum impurity models provide a paradigmatic setting for studying Kondo screening, boundary criticality, and impurity entropy. While these phenomena are well understood in unitar…
Multichannel Kondo Effect in Superconducting Leads
Pradip Kattel, Abay Zhakenov, Natan Andrei
The traditional multichannel Kondo effect takes place when several gapless metallic electronic channels interact with a localized spin- impurity, with the number of channels …
Thermodynamics in a split Hilbert space: Quantum impurity at the edge of the Heisenberg chain
Abay Zhakenov, Pradip Kattel, Natan Andrei
We study the isotropic spin- Heisenberg chain with a single edge-coupled impurity of arbitrary exchange strength . The model exhibits four impurity phases. For anti…
Thermodynamics in a split Hilbert space: Quantum impurity at the edge of a one-dimensional superconductor
Pradip Kattel, Abay Zhakenov, Natan Andrei
We present a thermodynamic description of a single magnetic impurity at the edge of a superconducting wire. The impurity exhibits four phases $\unicode{x2014}$ Kondo, Yu-Shiba-Rusi…