Search Results - "Langari, A"
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Impact of loss on the wave dynamics in photonic waveguide lattices
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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Ground-state fidelity of the spin-1 Heisenberg chain with single ion anisotropy: quantum renormalization group and exact diagonalization approaches
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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Quantum phase transition as an interplay of Kitaev and Ising interactions
Published in Physical review. B, Condensed matter and materials physics (15-01-2015)“…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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Real Space Renormalization of Majorana Fermions in Quantum Nano-Wire Superconductors
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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Second order quantum renormalisation group of XXZ chain with next-nearest neighbour interactions
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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Quantum renormalization group for ground-state fidelity
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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Green’s function approach to the low temperature properties of Cs2CuCl4: anisotropy effects
Published in The European physical journal. B, Condensed matter physics (01-11-2011)“…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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Quantum renormalization group of XYZ model in a transverse magnetic field
Published in Physical review. B, Condensed matter and materials physics (01-03-2004)Get full text
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Cumulant expansion for ferrimagnetic spin (S1, s2) systems
Published in Physical review. B, Condensed matter and materials physics (01-11-2004)Get full text
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Thermodynamic properties of ferrimagnetic spin chains in the presence of a magnetic field
Published in Physical review. B, Condensed matter and materials physics (01-01-2006)Get full text
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Numerical and quantum simulation of a quantum disentangled liquid
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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Quantum renormalization group for the xxz model in the presence of an external magnetic field
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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Rotational symmetry breaking toward a string-valence bond solid phase in frustrated J1−J2 transverse field Ising model
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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Rotational symmetry breaking toward a string-valence bond solid phase in frustrated J^sub 1^-J^sub 2^ transverse field Ising model
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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Rotational symmetry breaking toward a string-valence bond solid phase in frustrated J 1 − J 2 transverse field Ising model
Published in Physica. C, Superconductivity (01-06-2018)Get full text
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Phase diagram and entanglement of the Ising model with Dzyaloshinskii-Moriya interaction
Published in Physical review. B, Condensed matter and materials physics (01-12-2008)Get full text
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PATIENTS WITH MODERATE COVID-19: COMPARISON OF PROCALCITONIN SERUM LEVEL IN TWO GROUPS WITH DIFFERENT CHEST IMAGING FINDINGS
Published in Chest (01-06-2022)Get full text
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One-dimensional anisotropic Heisenberg model in the transverse magnetic field
Published in Journal of experimental and theoretical physics (01-09-2002)Get full text
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Charge density plateaux and insulating phases in the t - J model with ladder geometry
Published in The European physical journal. B, Condensed matter physics (01-11-2003)Get full text
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