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of 110
pro vyhledávání: '"Mahdavifar, Saeed"'
Publikováno v:
Physical Review B 109, 134303 (2024)
The bond-dependent Kitaev model offers a playground in which one can search for quantum spin liquids. In these Kitaev materials, a symmetric off-diagonal $\Gamma$ term emerges, hosting a number of remarkable features, which has been particularly chal
Externí odkaz:
http://arxiv.org/abs/2404.04715
Experimental observations of anisotropic tightly bound excitons in black phosphorene, and correlated phenomena such as room temperature magnetically active edges in phosphorene nanoribbons (PNRs), sparked discussions on the controversial screening of
Externí odkaz:
http://arxiv.org/abs/2403.09908
We consider the spin-$1/2$ XY frustrated antiferromagnetic Heisenberg honeycomb model. There is an unclear intermediate region in the ground state phase diagram of the model. The most recognized phases are the quantum spin-liquid (QSL) and the antife
Externí odkaz:
http://arxiv.org/abs/2211.06468
We analyze the behavior of steady-state quantum correlations (QCs) in the spin-1/2 transverse field XY chains analytically, in terms of quench dynamics at zero-temperature. We show that steady-state QCs are strikingly greater than the equilibrium one
Externí odkaz:
http://arxiv.org/abs/2202.06341
Publikováno v:
Phys. Rev. B 105, 024425 (2022)
We study the time evolution of spin squeezing in the one-dimensional spin-1/2 XY model subject to a sudden quantum quench of a transverse magnetic field. The initial state is selected from the ground state phase diagram of the model, consisting of fe
Externí odkaz:
http://arxiv.org/abs/2108.13805
Autor:
Mahdavifar, Saeed1 (AUTHOR), Salehpour, Mahboubeh1 (AUTHOR), Cheraghi, Hadi2,3 (AUTHOR), Afrousheh, Kourosh4 (AUTHOR) k.afrousheh@ku.edu.kw
Publikováno v:
Scientific Reports. 5/1/2024, Vol. 14 Issue 1, p1-10. 10p.
Here, we show that, although quantum fidelity can truly identify two quantum phase transitions of a one-dimensional spin-1/2 quantum Ising model with competing nearest and next-nearest neighbour interactions in a transverse magnetic field, it may not
Externí odkaz:
http://arxiv.org/abs/2007.01186
Autor:
Cheraghi, Hadi, Mahdavifar, Saeed
Publikováno v:
Phys. Rev. B 102, 024304 , 2020
We consider the dynamics of maximal quantum Fisher information (MQFI) after sudden quenches for the one-dimensional transverse-field Ising model. Our results show, the same as Loschmidt echo, there is a universality for the revival times i.e., they d
Externí odkaz:
http://arxiv.org/abs/2006.14440
Akademický článek
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Publikováno v:
Physica A, Volume 516, 15 February 2019, Pages 212-221
Luttinger liquid (LL) phase refers to a quantum phase which emerges in the ground state phase diagram of quite often low-dimensional quantum magnets as spin-1/2 XX, XYY and frustrated chains. It is believed that the quasi long-range order exists betw
Externí odkaz:
http://arxiv.org/abs/1810.08903