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pro vyhledávání: '"Pouranvari, Mohammad"'
Autor:
Pouranvari, Mohammad
This study investigates the entanglement properties of disordered free fermion systems undergoing an Anderson phase transition from a delocalized to a localized phase. The entanglement entropy is employed to quantify the degree of entanglement, with
Externí odkaz:
http://arxiv.org/abs/2208.11409
Autor:
Pouranvari, Mohammad
Publikováno v:
Eur. Phys. J. B (2023)96:48
A new characterization of the Anderson phase transition, based on the response of the system to the boundary conditions is introduced. We change the boundary conditions from periodic to antiperiodic and look for its effects on the eigenstate of the s
Externí odkaz:
http://arxiv.org/abs/2202.10737
Autor:
Pouranvari, Mohammad
Publikováno v:
Physica A: Statistical Mechanics and its Applications, 624:128908, 2023
We study the entanglement properties of random XX spin $1/2$ chains at an arbitrary temperature $T$ using random partitioning, where sites of a size-varying subsystem are chosen randomly with a uniform probability $p$, and then an average over subsys
Externí odkaz:
http://arxiv.org/abs/2202.10731
Autor:
Pouranvari, Mohammad, Liou, Shiuan-Fan
Publikováno v:
Phys. Rev. B 103, 035136 (2021)
We introduce novel characterizations for many-body phase transitions between delocalized and localized phases based on the system's sensitivity to boundary conditions. In particular, we change boundary conditions from periodic to antiperiodic and cal
Externí odkaz:
http://arxiv.org/abs/2008.03921
Autor:
Pouranvari, Mohammad
Publikováno v:
Eur. Phys. J. B (2020) 93: 118
We studied numerically the distribution of the entanglement Hamiltonian eigenvalues in two one-dimensional free fermion models and the typical three-dimensional Anderson model. We showed numerically that this distribution depends on the phase of the
Externí odkaz:
http://arxiv.org/abs/2006.16691
Autor:
Pouranvari, Mohammad
Publikováno v:
Modern Physics Letters A, Vol. 33, No. 16, 1850085 (2018)
Single-particle entanglement entropy (SPEE) is calculated for entanglement Hamiltonian eigen-mode in a one-dimensional free fermion model that undergoes a delocalized-localized phase transition. In this numerical study, we show that SPEE of entanglem
Externí odkaz:
http://arxiv.org/abs/1911.05339
Autor:
Pouranvari, Mohammad, Abouie, Jahanfar
Publikováno v:
Phys. Rev. B 100, 195109 (2019)
We study entanglement Hamiltonian (EH) associated with the reduced density matrix of free fermion models in delocalized-localized Anderson phase transition. We show numerically that the structure of the EH matrix differentiates the delocalized from t
Externí odkaz:
http://arxiv.org/abs/1911.04189
Publikováno v:
In Journal of Materials Research and Technology September-October 2023 26:5549-5565
Autor:
Pouranvari, Mohammad
Publikováno v:
In Physica A: Statistical Mechanics and its Applications 15 August 2023 624
Autor:
Pouranvari, Mohammad
Publikováno v:
Physical Review B, 99, 155121 (2019)
We study the fractal properties of single-particle eigen-modes of entanglement Hamiltonian in free fermion models. One of these modes that has the highest entanglement information and thus called maximally entangled mode (MEM) is specially considered
Externí odkaz:
http://arxiv.org/abs/1904.12450