26 citations · 141 across the 15 of their papers we have counts for
16 papers
Coupled quantum critical states in a circuit simulator
D. B. Karki, Andrew K. Mitchell
Hybrid metal-semiconductor quantum circuits offer a controlled setting for realizing and probing strongly correlated quantum matter. A largely open question that may be addressed b…
Tunneling in multi-site mesoscopic quantum Hall circuits
D. B. Karki
Transport properties of single- and two-site mesoscopic quantum Hall (QH) circuits at high transparencies can be described in terms of the lowest-order backscattering processes, en…
Multi-mode Coulomb blockade oscillations
D. B. Karki
We develop a theory of Coulomb blockade oscillations in transport and thermodynamic properties of a mesoscopic device having multiple charging energy modes. This setup can be reali…
Quantum criticality in coupled hybrid metal-semiconductor islands
D. B. Karki
We show that the combined effects of dynamical Coulomb blockade and integer quantum Hall effect in a coupled hybrid metal-semiconductor setup provide a pathway for realizing resona…
parafermion in the double charge-Kondo model
D. B. Karki, Edouard Boulat, Winston Pouse +3
Quantum impurity models with frustrated Kondo interactions can support quantum critical points with fractionalized excitations. Recent experiments [arXiv:2108.12691] on a circuit c…
Two-sites quantum island in the quasi-ballistic regime
Deepak B. Karki, Edouard Boulat, Christophe Mora
Quantum Hall edge channels can be combined with metallic regions to fractionalize electrons and form correlated impurity models. We study a minimal device, that has been experiment…
Multistage Kondo effect in a multiterminal geometry: A modular quantum interferometer
D. B. Karki, Andrei I. Pavlov, Mikhail N. Kiselev
Quantum systems characterized by an interplay between several resonance scattering channels demonstrate very rich physics. To illustrate it we consider a multistage Kondo effect in…
Transmission phase evolution in fully screened and overscreened Kondo impurities
D. B. Karki
We study the coherent properties of fully screened and overscreened Kondo effects based on the Nozieres local Fermi-liquid theory and Affleck-Ludwig boundary conformal-field-theory…
Overscreened Kondo problem with large spin and large number of orbital channels: Two distinct semiclassical limits in quantum transport observables
D. B. Karki, Mikhail N. Kiselev
We investigate the quantum transport through Kondo impurity assuming both a large number of orbital channels for the itinerant electrons and a semi-classical…
Coulomb blockade oscillations of heat conductance in the charge Kondo regime
D. B. Karki
We develop a method of theoretically investigating the charge, energy and heat transport in the presence of the charge Kondo correlations. The Coulomb blockade oscillations of heat…
Quantum thermoelectric and heat transport in the overscreened Kondo regime: Exact conformal field theory results
D. B. Karki, Mikhail N. Kiselev
We develop a conformal-field theory approach for investigation of the quantum charge-, heat- and thermoelectric- transport through a quantum impurity fine tuned to a non-Fermi liqu…
Nonlinear Seebeck effect of SU() Kondo impurity
D. B. Karki, Mikhail N. Kiselev
We develop a theoretical framework to study the influences of coupling asymmetry on the thermoelectrics of a strongly coupled SU() Kondo impurity based on a local Fermi liquid t…
Effects of strong electron interactions and resonance scattering on power output of nano-devices
D. B. Karki, Mikhail N. Kiselev
We develop a Fermi-liquid based approach to investigate the power output of nano devices in the presence of strong interactions and resonance scattering. The developed scheme is th…
Full counting statistics of the two-stage Kondo effect
D. B. Karki, Mikhail N. Kiselev
We developed a theoretical framework which extends the method of \textit{full counting statistics} (FCS) from conventional single channel Kondo screening schemes to multi-channel K…
Two-color Fermi liquid theory for transport through a multilevel Kondo impurity
D. B. Karki, Christophe Mora, Jan von Delft +1
We consider a quantum dot with orbital levels occupied by two electrons connected to two electric terminals. The generic model is given by a multi-level Anderson…
Thermoelectric Transport through SU(N) Kondo Impurity
D. B. Karki, M. N. Kiselev
We investigate thermoelectric transport through a SU(N) quantum impurity in the Kondo regime. The strong coupling fixed point theory is described by the local Fermi-liquid paradigm…