Search Results - "Langari, A"

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  1. 1

    Impact of loss on the wave dynamics in photonic waveguide lattices by Golshani, M, Weimann, S, Jafari, Kh, Nezhad, M Khazaei, Langari, A, Bahrampour, A R, Eichelkraut, T, Mahdavi, S M, Szameit, A

    Published in Physical review letters (19-09-2014)
    “…We analyze the impact of loss in lattices of coupled optical waveguides and find that, in such a case, the hopping between adjacent waveguides is necessarily…”
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  2. 2

    Ground-state fidelity of the spin-1 Heisenberg chain with single ion anisotropy: quantum renormalization group and exact diagonalization approaches by Langari, A, Pollmann, F, Siahatgar, M

    Published in Journal of physics. Condensed matter (09-10-2013)
    “…We study the phase diagram of the anisotropic spin-1 Heisenberg chain with single ion anisotropy (D) using a ground-state fidelity approach. The ground-state…”
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  3. 3

    Quantum phase transition as an interplay of Kitaev and Ising interactions by Langari, A., Mohammad-Aghaei, A., Haghshenas, R.

    “…We study the interplay between the Kitaev and Ising interactions on a ladder geometry. We show that the ground state of the Kitaev ladder is a…”
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  4. 4

    Real Space Renormalization of Majorana Fermions in Quantum Nano-Wire Superconductors by Jafari, R., Langari, A., Akbari, Alireza, Kim, Ki-Seok

    Published in Journal of the Physical Society of Japan (15-02-2017)
    “…We develop the real space quantum renormalization group (QRG) approach for majorana fermions. As an example we focus on the Kitaev chain to investigate the…”
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  5. 5

    Second order quantum renormalisation group of XXZ chain with next-nearest neighbour interactions by Jafari, R., Langari, A.

    Published in Physica A (15-05-2006)
    “…We have extended the application of quantum renormalisation group (QRG) to the anisotropic Heisenberg model with next-nearest neighbour ( n - n - n )…”
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  6. 6

    Quantum renormalization group for ground-state fidelity by Langari, A, Rezakhani, A T

    Published in New journal of physics (14-05-2012)
    “…Ground-state fidelity (GSF) and quantum renormalization group (QRG) theory have proven to be useful tools in the study of quantum critical systems. Here we lay…”
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  7. 7

    Green’s function approach to the low temperature properties of Cs2CuCl4: anisotropy effects by Rezania, H., Langari, A.

    “…We have studied the effect of both axial and transverse anisotropy on the critical field and thermodynamic properties of the field induced three dimensional…”
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    Numerical and quantum simulation of a quantum disentangled liquid by Abbasgholinejad, E., Raeisi, S., Langari, A.

    Published in Physica A (01-04-2023)
    “…The illustrative wave function for a quantum disentangled liquid (QDL) composed of light and heavy particles is examined within numerical simulations. Initial…”
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  13. 13

    Quantum renormalization group for the xxz model in the presence of an external magnetic field by Langari, A.

    Published in Physics letters. A (14-09-1998)
    “…The anisotropic s = 1 2 antiferromagnetic Heisenberg chain in the presence of an external magnetic field is studied by using the standard quantum…”
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  14. 14

    Rotational symmetry breaking toward a string-valence bond solid phase in frustrated J1−J2 transverse field Ising model by Sadrzadeh, M., Langari, A.

    Published in Physica. C, Superconductivity (15-06-2018)
    “…•Harmonic quantum fluctuations can not lift the large degeneracy of the ground state.•An-harmonic quantum fluctuations lift the degeneracy toward a unique…”
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  15. 15

    Rotational symmetry breaking toward a string-valence bond solid phase in frustrated J^sub 1^-J^sub 2^ transverse field Ising model by Sadrzadeh, M, Langari, A

    Published in Physica. C, Superconductivity (15-06-2018)
    “…We study the effect of quantum fluctuations by means of a transverse magnetic field (Γ) on the highly degenerate ground state of antiferromagnetic J1−J2 Ising…”
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