Thermometry of strongly correlated fermionic quantum systems using impurity probes
We study quantum-impurity models as a platform for quantum thermometry. A single
quantum spin-1 2 impurity is coupled to an explicit, structured, fermionic thermal sample …
quantum spin-1 2 impurity is coupled to an explicit, structured, fermionic thermal sample …
Universal thermal entanglement of multichannel Kondo effects
Quantum entanglement between an impurity and its environment is expected to be central in
quantum impurity problems. We develop a method to compute the entanglement in spin-1/2 …
quantum impurity problems. We develop a method to compute the entanglement in spin-1/2 …
Hierarchical entanglement shells of multichannel Kondo clouds
Impurities or boundaries often impose nontrivial boundary conditions on a gapless bulk,
resulting in distinct boundary universality classes for a given bulk, phase transitions, and …
resulting in distinct boundary universality classes for a given bulk, phase transitions, and …
Sharp entanglement thresholds in the logarithmic negativity of disjoint blocks in the transverse-field Ising chain
Entanglement has developed into an essential concept for the characterization of phases
and phase transitions in ground states of quantum many-body systems. In this work we use …
and phase transitions in ground states of quantum many-body systems. In this work we use …
Detecting Kondo entanglement by electron conductance
G Yoo, SSB Lee, HS Sim - Physical Review Letters, 2018 - APS
Quantum entanglement between an impurity spin and electrons nearby is a key property of
the single-channel Kondo effects. We show that the entanglement can be detected by …
the single-channel Kondo effects. We show that the entanglement can be detected by …
System-bath entanglement of noninteracting fermionic impurities: Equilibrium, transient, and steady-state regimes
K Ptaszyński, M Esposito - Physical Review B, 2024 - APS
We investigate the behavior of entanglement between a single fermionic level and a
fermionic bath in three distinct thermodynamic regimes. First, in thermal equilibrium, we …
fermionic bath in three distinct thermodynamic regimes. First, in thermal equilibrium, we …
Quantum entanglement in a pure state of strongly correlated quantum impurity systems
Y Nishikawa, T Yoshioka - Physical Review B, 2025 - APS
We consider quantum entanglement in strongly correlated quantum impurity systems for
states manifesting interesting properties such as the multilevel Kondo effect and dual nature …
states manifesting interesting properties such as the multilevel Kondo effect and dual nature …
Ion-induced secondary electron emission from metal surfaces
M Pamperin, FX Bronold, H Fehske - Plasma Sources Science …, 2018 - iopscience.iop.org
Using a helium ion hitting various metal surfaces as a model system, we describe a general
quantum-kinetic approach for calculating ion-induced secondary electron emission spectra …
quantum-kinetic approach for calculating ion-induced secondary electron emission spectra …
System-bath entanglement during Markovian relaxation of a fermionic impurity
K Ptaszynski, M Esposito - arxiv preprint arxiv:2306.08626, 2023 - arxiv.org
We investigate the dynamics of entanglement between the system and the environment
during thermalization of a noninteracting fermionic impurity coupled to a fermionic thermal …
during thermalization of a noninteracting fermionic impurity coupled to a fermionic thermal …
Tracking the variation of entanglement R\'enyi negativity: an efficient quantum Monte Carlo method
YM Ding, Y Tang, Z Wang, Z Wang, BB Mao… - arxiv preprint arxiv …, 2024 - arxiv.org
Although the entanglement entropy probing novel phases and phase transitions numerically
via quantum Monte Carlo (QMC) has achieved huge success in pure ground states of …
via quantum Monte Carlo (QMC) has achieved huge success in pure ground states of …