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- University of Sciences and Technology Houari BoumedieneDZ25 papers
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- Bulgarian Academy of SciencesBG1 paper
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- Centro de Física das Universidades do Minho e do PortoPT1 paper
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- École Nationale Supérieure d'Électrotechnique, d'Électronique, d'Informatique, d'Hydraulique et des TélécommunicationsFR1 paper
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4 papers · 1 filter
Pseudo-Hermitian systems with PT-symmetry: Degeneracy and Krein space
B. Choutri, O. Cherbal, F. Z. Ighezou +1
We show in the present paper that pseudo-Hermitian Hamiltonian systems with even PT-symmetry admit a degeneracy structure. This kind of degeneracy is expected traditionally in the…
Supersymmetric Extension of Non-Hermitian su(2) Hamiltonian and Supercoherent States
Omar Cherbal, Mahrez Drir, Mustapha Maamache +1
A new class of non-Hermitian Hamiltonians with real spectrum, which are written as a real linear combination of su(2) generators in the form , , i…
Fermion Coherence Hamiltonians
O. Cherbal, M. Drir, M. Maamache +1
We have established that the most general form of Hamiltonian that preserves fermionic coherent states stable in time, is that of the nonstationary free fermionic oscillator. This…
Fermionic coherent states for pseudo-Hermitian two-level systems
O. Cherbal, M. Drir, M. Maamache +1
We introduce creation and annihilation operators of pseudo-Hermitian fermions for two-level systems described by pseudo-Hermitian Hamiltonian with real eigenvalues. This allows the…