Shot noise in mesoscopic systems: From single particles to quantum liquids

K Kobayashi, M Hashisaka - Journal of the Physical Society of Japan, 2021 - journals.jps.jp
Shot noise, originating from the discrete nature of electric charge, is generated by scattering
processes. Shot-noise measurements have revealed microscopic charge dynamics in …

Strongly correlated electrons in superconducting islands with fluctuating Cooper pairs

TF Fang, AM Guo, QF Sun - Physical Review B, 2022 - APS
We present a particle-number-conserving theory for many-body effects in mesoscopic
superconducting islands connected to normal electrodes, which explicitly includes quantum …

Spin-isospin Kondo effects for and baryons and and mesons

S Yasui, T Miyamoto - Physical Review C, 2019 - APS
We study the Kondo effect for a Σ c (Σ c*) baryon in nuclear matter. In terms of the spin and
isospin [SU (2) spin× SU (2) isospin] symmetry, the heavy-quark spin symmetry and the S …

Nonlinear Seebeck effect of Kondo impurity

DB Karki, MN Kiselev - Physical Review B, 2019 - APS
We develop a theoretical framework to study the influence of coupling asymmetry on the
thermoelectrics of a strongly coupled SU (N) Kondo impurity based on a local Fermi liquid …

Three-body correlations in nonlinear response of correlated quantum liquid

T Hata, Y Teratani, T Arakawa, S Lee, M Ferrier… - Nature …, 2021 - nature.com
Behavior of quantum liquids is a fascinating topic in physics. Even in a strongly correlated
case, the linear response of a given system to an external field is described by the …

Enhanced shot noise at bilayer graphene–superconductor junction

MR Sahu, AK Paul, A Soori, K Watanabe, T Taniguchi… - Physical Review B, 2019 - APS
Transport properties of graphene-superconductor junction have been studied extensively to
understand the interplay of the relativistic Dirac quasiparticles and superconductivity …

Topologically protected correlated end spin formation in carbon nanotubes

CP Moca, W Izumida, B Dóra, Ö Legeza, JK Asbóth… - Physical Review Letters, 2020 - APS
For most chiralities, semiconducting nanotubes display topologically protected end states of
multiple degeneracies. We demonstrate using density matrix renormalization group based …

Time-dependent Andreev reflection

DV Averin, G Wang, AS Vasenko - Physical Review B, 2020 - APS
We extend the basic theory of Andreev reflection (AR) in a normal metal/superconductor
junction to the situation with an arbitrary time-dependent bias voltage V (t) across the …

Signatures of odd-frequency pairing in the Josephson junction current noise

R Seoane Souto, D Kuzmanovski, AV Balatsky - Physical Review Research, 2020 - APS
Odd-frequency (odd-ω) electron pair correlations naturally appear at the interface between
BCS superconductors and other materials. The detection of odd-ω pairs, which are …

Field-induced SU (4) to SU (2) Kondo crossover in a half-filling nanotube dot: Spectral and finite-temperature properties

Y Teratani, R Sakano, T Hata, T Arakawa, M Ferrier… - Physical Review B, 2020 - APS
We study finite-temperature properties of the Kondo effect in a carbon nanotube (CNT)
quantum dot using the Wilson numerical renormalization group (NRG). In the absence of …