A duality principle for the multi-block entanglement entropy of free fermion systems

JA Carrasco, F Finkel, A Gonzalez-Lopez… - Scientific Reports, 2017 - nature.com
The analysis of the entanglement entropy of a subsystem of a one-dimensional quantum
system is a powerful tool for unravelling its critical nature. For instance, the scaling …

Thermodynamics and criticality of supersymmetric spin chains with long-range interactions

F Finkel, A González-López, I León… - Journal of Statistical …, 2018 - iopscience.iop.org
We study the thermodynamics and critical behavior of $\newcommand {\su}{{\rm su}}\su (m|
n) $ supersymmetric spin chains of Haldane–Shastry type with a chemical potential term. We …

Entanglement entropy and Möbius transformations for critical fermionic chains

F Ares, JG Esteve, F Falceto… - Journal of Statistical …, 2017 - iopscience.iop.org
Entanglement entropy may display a striking new symmetry under Möbius transformations.
This symmetry was analysed in our previous work for the case of a non-critical (gapped) free …

Entanglement entropy of free fermions on directed graphs

MA Jafarizadeh, F Eghbalifam, S Nami - The European Physical Journal …, 2017 - Springer
In this paper, we study the general spinless quadratic fermion Hamiltonian with interaction
matrices given by the symmetric and antisymmetric parts of the adjacency matrix of a …

Entanglement entropy in the ground state of supersymmetric fermion lattice models

MA Jafarizadeh, F Eghbalifam, S Nami - Chinese Journal of Physics, 2022 - Elsevier
In this paper, we study the entanglement entropy for strongly correlated spinless fermions in
the ground state of a supersymmetric Hamiltonian on diverse graphs. Then, we use the …

Supersymmetric tJ models with long-range interactions: partition function and spectrum

B Basu-Mallick, N Bondyopadhaya… - Journal of Statistical …, 2019 - iopscience.iop.org
We study the spectrum of the long-range supersymmetric tJ model of Kuramoto and
Yokoyama in the presence of an external magnetic field and a charge chemical potential. To …

Entanglement Entropy Scaling Law in the Ground State of Supersymmetric Fermion Lattice Model

F Eghbalifam, MA Jafarizadeh, S Nami - Journal of Experimental and …, 2022 - Springer
We investigate the entanglement entropy in the ground state of the supersymmetric fermion
lattice model. The Hamiltonian of this model is block diagonal in the basis of a fixed number …

[PDF][PDF] Integrability and entanglement in quantum systems

IR REINA - 2023 - daciu.com
DACIU is an excellence program created by Fundación Avanza, whose objective is
introducing undergraduate students to scientific research. This task is carried out via a one …

[PDF][PDF] ЗАКОН МАСШТАБИРОВАНИЯ ДЛЯ ЭНТРОПИИ ЗАПУТЫВАНИЯ ДЛЯ ОСНОВНОГО СОСТОЯНИЯ В РЕШЕТОЧНОЙ МОДЕЛИ СУПЕРСИММЕТРИЧНЫХ …

Ф Эгбалифам, МА Джафаризаде, С Нами - ЖУРНАЛ …, 2022 - jetp.ras.ru
Теория суперсимметрии (SUSY) в физике частиц устанавливает соотношение между
бозонами и фермионами. Эту теорию можно построить для решеточных моделей [1 …

Thermodynamics and criticality of supersymmetric spin chains with long-range interactions

F Finkel Morgenstern, A González López… - 2018 - repositorio.unican.es
We study the thermodynamics and critical behavior of su (m| n) supersymmetric spin chains
of Haldane–Shastry type with a chemical potential term. We obtain a closed-form expression …