138 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Budapest University of Technology and EconomicsHU76 papers
- National Institute for Research and Development of Isotopic and Molecular TechnologiesRO15 papers
- HUN-REN Wigner Research Centre for PhysicsHU14 papers
- Adam Mickiewicz University in PoznańPL11 papers
- Graz University of TechnologyAT11 papers
- Institute for Solid State Physics and OpticsHU8 papers
- Radboud University NijmegenNL7 papers
- Universität HamburgDE7 papers
- Centre National de la Recherche ScientifiqueFR6 papers
- Ludwig-Maximilians-Universität MünchenDE6 papers
- University of AugsburgDE6 papers
- Babeș-Bolyai UniversityRO5 papers
35 papers · 1 filter
Underscreened Kondo Compensation in a Superconductor
Anand Manaparambil, Cătălin Paşcu Moca, Gergely Zaránd +1
A magnetic impurity with a larger spin remains partially screened by the Kondo effect when embedded in a metal. However, when placed within an -wave superconductor, the in…
Correlations at higher-order exceptional points in non-Hermitian models
Doru Sticlet, Cătălin Paşcu Moca, Balázs Dóra
We investigate the decay of spatial correlations of -symmetric non-Hermitian one-dimensional models that host higher-order exceptional points. Beyond a certain correl…
Non-hermitian off-diagonal magnetic response of Dirac fermions
Roberta Zsófia Kiss, Doru Sticlet, Catalin Pascu Moca +1
We perform a comparative study for the magnetization dynamics within linear response theory of one and two dimensional massive Dirac electrons, after switching on either a real (he…
Non-Hermitian Lindhard function and Friedel oscillations
Balázs Dóra, Doru Sticlet, Cătălin Paşcu Moca
The Lindhard function represents the basic building block of many-body physics and accounts for charge response, plasmons, screening, Friedel oscillation, RKKY interaction etc. Her…
All-electrical spectroscopy of topological phases in semiconductor-superconductor heterostructures
Doru Sticlet, Cătălin Paşcu Moca, Balázs Dóra
Semiconductors in the proximity of superconductors have been proposed to support phases hosting Majorana bound states. When the systems undergo a topological phase transition towar…
Large spatial extension of the zero-energy Yu-Shiba-Rusinov state in magnetic field
Zoltán Scherübl, Gergő Fülöp, Cătălin Paşcu Moca +8
Various promising qubit concepts have been put forward recently based on engineered superconductor (SC) subgap states like Andreev bound states, Majorana zero modes or the Yu-Shiba…
Quantum criticality and formation of a singular Fermi liquid in the attractive SU(N > 2) Anderson model
Cătălin Paşcu Moca, Chirla Razvan, Balázs Dóra +1
While much is known about repulsive quantum impurity models, significantly less attention has been devoted to their attractive counterparts. This motivated us to study the attracti…
Imaging the Wigner Crystal of Electrons in One Dimension
Ilanit Shapir, Assaf Hamo, Sharon Pecker +4
The quantum crystal of electrons, predicted more than eighty years ago by Eugene Wigner, is still one of the most elusive states of matter. Here, we present experiments that observ…
The SU(4) Kondo effect in double quantum dots with ferromagnetic leads
Ireneusz Weymann, Razvan Chirla, Piotr Trocha +1
We investigate the spin-resolved transport properties, such as the linear conductance and the tunnel magnetoresistance, of a double quantum dot device attached to ferromagnetic lea…
Noise of a chargeless Fermi liquid
Catalin Pascu Moca, Christophe Mora, Ireneusz Weymann +1
We construct a Fermi liquid theory to describe transport in a superconductor-quantum dot- normal metal junction close to the singlet-doublet (parity changing) transition of the dot…
Wigner crystal phases in confined carbon nanotubes
Lorinc Sarkany, Edina Szirmai, Catalin Pascu Moca +2
We present a detailed theoretical analysis of the Wigner crystal states in confined semiconducting carbon nanotubes. We show by robust scaling arguments as well as by detailed semi…
At which magnetic field, exactly, does the Kondo resonance begin to split? A Fermi liquid description of the low-energy properties of the Anderson model
Michele Filippone, Catalin Pascu Moca, Andreas Weichselbaum +2
This paper is a corrected version of Phys. Rev. B 95, 165404 (2017), which we have retracted because it contained a trivial but fatal sign error that lead to incorrect conclusions.…
Fingerprints of Majorana fermions in spin-resolved subgap spectroscopy
Razvan Chirla, Catalin Pascu Moca
When a strongly correlated quantum dot is tunnel-coupled to a superconductor, it leads to the formation of Shiba bound states inside the superconducting gap. They have been measure…
Transmission of a microwave cavity coupled to localized Shiba states
Razvan Chirla, Andrei Manolescu, Catalin Pascu Moca
We consider a strongly correlated quantum dot, tunnel coupled to two superconducting leads and capacitively coupled to a single mode microwave cavity. When the superconducting gap…
Kondo effect in a carbon nanotube with spin-orbit interaction and valley mixing: A DM-NRG study
Davide Mantelli, Catalin Pascu Moca, Gergely Zarand +1
We investigate the effects of spin-orbit interaction (SOI) and valley mixing on the transport and dynamical properties of a carbon nanotube (CNT) quantum dot in the Kondo regime. A…
Quantum turnstile operation of single-molecule magnets
V. Moldoveanu, I. V. Dinu, B. Tanatar +1
The time-dependent transport through single-molecule magnets coupled to magnetic or non-magnetic electrodes is studied in the framework of the generalized master equation method. W…
Universal Fermi liquid crossover and quantum criticality in a mesoscopic device
A. J. Keller, L. Peeters, C. P. Moca +5
Quantum critical systems derive their finite temperature properties from the influence of a zero temperature quantum phase transition. The paradigm is essential for understanding u…
Transport in a hybrid normal-topological superconductor Kondo model
Razvan Chirla, I. V. Dinu, V. Moldoveanu +1
We investigate the equilibrium and non-equilibrium transport through a quantum dot in the Kondo regime, embedded between a normal metal and a topological superconductor supporting…
Fermi-liquid theory for the single-impurity Anderson model
Christophe Mora, Catalin Pascu Moca, Jan von Delft +1
We generalize Nozières' Fermi-liquid theory for the low-energy behavior of the Kondo model to that of the single-impurity Anderson model. In addition to the electrons' phase shift…
The Kondo Temperature of SU(4) Symmetric Quantum Dots
Michele Filippone, Catalin Pascu Moca, Gergely Zarand +1
A path integral approach is used to derive a closed analytical expression for the Kondo temperature of the SU(4) symmetrical Anderson model. In contrast to the SU(2) case, the pref…
Finite-frequency-dependent noise of a quantum dot in a magnetic field
Catalin Pascu Moca, Pascal Simon, Chung-Hou Chung +1
We present a detailed study for the finite-frequency current noise of a Kondo quantum dot in presence of a magnetic field by using a recently developed real time functional renorma…
Finite-frequency thermoelectric response in strongly correlated quantum dots
Razvan Chirla, Catalin Pascu Moca
We investigate the finite-frequency thermal transport through a quantum dot subject to strong interactions, by providing an exact, nonperturbative formalism that allows us to carry…
Fermi liquid theory of resonant spin pumping
C. P. Moca, A. Alex, A. Shnirman +1
We study resonant all-electric adiabatic spin pumping through a quantum dot with two nearby levels by using a Fermi liquid approach in the strongly interacting regime, combined wit…
Observation of the SU(4) Kondo state in a double quantum dot
A. J. Keller, S. Amasha, I. Weymann +6
Central to condensed matter physics are quantum impurity models, which describe how a local degree of freedom interacts with a continuum. Surprisingly, these models are often unive…