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of 166
pro vyhledávání: '"Gargano, Francesco"'
In this paper we construct different classes of coherent and bicoherent states for the graphene tight-binding model in presence of a magnetic field, and for a deformed version where we include a $\mathcal{P}\mathcal{T}$-symmetric chemical potential $
Externí odkaz:
http://arxiv.org/abs/2410.19621
Autor:
Bagarello, Fabio, Gargano, Francesco
Publikováno v:
Zamp 73:119 (2022)
In this paper we show that the position and the derivative operators, $\hat q$ and $\hat D$, can be treated as ladder operators connecting the various vectors of two biorthonormal families, $\mathcal{F}_\varphi$ and $\mathcal{F}_\psi$. In particular,
Externí odkaz:
http://arxiv.org/abs/2204.09044
Autor:
Greco, Giuseppe1 (AUTHOR) giuseppe.greco03@unipa.it, Gargano, Francesco1 (AUTHOR), Motta, Miriam La1 (AUTHOR), Gugino, Ignazio Maria1 (AUTHOR), Liguori, Giorgia1 (AUTHOR) giorgia.liguori@unipa.it
Publikováno v:
Agronomy. Jun2024, Vol. 14 Issue 6, p1246. 12p.
Autor:
Bagarello, Fabio, Gargano, Francesco
We propose two different strategies to find eigenvalues and eigenvectors of a given, not necessarily Hermitian, matrix $A$. Our methods apply also to the case of complex eigenvalues, making the strategies interesting for applications to physics, and
Externí odkaz:
http://arxiv.org/abs/2002.05015
In this letter we show that it is not possible to set up a canonical quantization for the damped harmonic oscillator using the Bateman lagrangian. In particular, we prove that no square integrable vacuum exists for the {\em natural} ladder operators
Externí odkaz:
http://arxiv.org/abs/1906.05121
Akademický článek
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Extending our previous analysis on bi-coherent states, we introduce here a new class of quantum mechanical vectors, the \emph{bi-squeezed states}, and we deduce their main mathematical properties. We relate bi-squeezed states to the so-called regular
Externí odkaz:
http://arxiv.org/abs/1809.05346
Autor:
Bagarello, Fabio1,2 (AUTHOR) fabio.bagarello@unipa.it, Gargano, Francesco1 (AUTHOR) francesco.gargano@unipa.it, Gorgone, Matteo3 (AUTHOR) francesco.oliveri@unime.it, Oliveri, Francesco3 (AUTHOR)
Publikováno v:
Entropy. Oct2023, Vol. 25 Issue 10, p1438. 19p.
We introduce an extended version of the Swanson model, defined on a two-dimensional non commutative space, which can be diagonalized exactly by making use of pseudo-bosonic operators. Its eigenvalues are explicitly computed and the biorthogonal sets
Externí odkaz:
http://arxiv.org/abs/1711.10181
Autor:
Bagarello, Fabio, Gargano, Francesco, Lattuca, Margherita, Rizzuto, Lucia, Passante, Roberto, Spagnolo, Salvatore
We consider a generalization of the non-Hermitian ${\mathcal PT}$ symmetric Jaynes-Cummings {Hamiltonian, recently introduced for studying optical phenomena with time-dependent physical parameters, that includes environment-induced decay}. In particu
Externí odkaz:
http://arxiv.org/abs/1604.07744