17 citations · 85 across the 19 of their papers we have counts for
19 papers
Dynamic scaling and Family-Vicsek universality in the Hubbard model at infinite temperature
Cătălin Paşcu Moca, Doru Sticlet, Balázs Dóra
We study Family-Vicsek scaling of charge, spin, and energy fluctuations in the one-dimensional Hubbard model at infinite temperature. Using a quantum generating function approach,…
Dynamical correlations in a dissipative XXZ spin chain
Cătălin Paşcu Moca, Doru Sticlet, Ovidiu I. Pâţu +1
We study dynamical spin correlations in a dissipative XXZ spin chain subject to uniform local spin-loss and pumping. Starting from a mixed steady state that is featureless albeit p…
Two-parameter Family-Vicsek scaling in a dissipative XXZ spin chain
Cătălin Paşcu Moca, Doru Sticlet, Tamás Vicsek +1
Family-Vicsek (FV) scaling provides an understanding for the growth and finite-size saturation of fluctuations in classical systems. Here, we extend the FV roughness to transferred…
Non-stabilizerness as a Diagnostic of Criticality and Exceptional Points in Non-Hermitian Spin Chains
Cătălin Paşcu Moca, Doru Sticlet, Balázs Dóra
We investigate non-stabilizerness, also known as ``magic,'' to understand criticality and exceptional points in non-Hermitian quantum many-body systems. Our focus is on parity-time…
Hot but Coherent: Doublons at Infinite Temperature in the Hubbard chain
Cătălin Paşcu Moca, Balázs Dóra, Gergely Zaránd
We investigate the spectral properties and the dynamics of doublons in the one-dimensional Hubbard model at infinite temperature. Using a Chebyshev expansion approach formulated in…
Quantum Coherence in a Maximally Hot Hubbard Chain
Cătălin Paşcu Moca, Ovidiu I. Patu, Balázs Dóra +1
We present a detailed study of the real-time dynamics and spectral properties of the one-dimensional fermionic Hubbard model at infinite temperature. Using tensor network simulatio…
Nonstabilizerness generation in a multiparticle quantum walk
Cătălin Paşcu Moca, Doru Sticlet, Balázs Dóra +3
We investigate the generation of non-stabilizerness, or magic, in a multi-particle quantum walk by analyzing the time evolution of the stabilizer Rényi entropy . Our study con…
Nonstabilizerness in open XXZ spin chains: Universal scaling and dynamics
Doru Sticlet, Balázs Dóra, Dominik Szombathy +2
Magic, or nonstabilizerness, is a crucial quantum resource, yet its dynamics in open quantum systems remain largely unexplored. We investigate magic in the open XXZ spin chain unde…
Dynamic scaling and Family-Vicsek universality in quantum spin chains
Cătălin Paşcu Moca, Balázs Dóra, Doru Sticlet +3
The Family-Vicsek scaling is a fundamental framework for understanding surface growth in non-equilibrium classical systems, providing a universal description of temporal surface ro…
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…
Kardar-Parisi-Zhang scaling in the Hubbard model
Cătălin Paşcu Moca, Miklós Antal Werner, Angelo Valli +2
We explore the Kardar-Parisi-Zhang (KPZ) scaling in the one-dimensional Hubbard model, which exhibits global symmetry at half-filling, for the pseudo-charg…
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…
Universal conductance of a PT-symmetric Luttinger liquid after a quantum quench
Cătălin Paşcu Moca, Balázs Dóra
We study the non-equilibrium dynamics and transport of a PT-symmetric Luttinger liquid (LL) after an interaction quench. The system is prepared in domain wall initial state. After…
Specific heat behavior of high temperature superconductors in the pseudogap regime
I. Tifrea, C. P. Moca
Experimental data obtained from thermodynamic measurements in underdoped high temperature superconductors show unusual anomalies in the temperature dependence of the electronic spe…
The electronic specific heat in the pairing pseudogap regime
C. P. Moca, B. Janko
When pairing correlations in a quasi two dimensional electron system induce a pseudogap in the single particle density of states, the specific heat must also contain a sizeable pai…
Transport Properties Calculation in the Superconducting State for a Quasi-Twodimensional System
C. P. Moca, E. Macocian
We performed a self-consistent calculation of the transport properties of a d-wave superconductor. We used for calculations the T-matrix approximation. The coresponding equations w…
Transport Properties Calculation for a Quasi-Bidimensional System using T-Matrix Approximation
C. P. Moca, E. Macocian
We performed a self-consistent calculation using T-Matrix approximation for a quasi-bidimensional system. We calculated the one particle spectrum function A(k,ω) in the presence of…
Renormalization group approach of itinerant electron systems near the Lifshitz point
C. P. Moca, I. Tifrea, M. Crisan
Using the renormalization approach proposed by Millis for the itinerant electron systems we calculated the specific heat coefficient for the magnetic fluctuations with susce…
Electron-fluctuation interaction in a non-Fermi superconductor
M. Crisan, C. P. Moca, I. Tifrea
We studied the influence of the amplitude fluctuations of a non-Fermi superconductor on the energy spectrum of the 2D Anderson non-Fermi system. The classical fluctuations give a t…