Zobrazeno 1 - 10
of 312
pro vyhledávání: '"ALCARAZ, Francisco"'
Autor:
Alcaraz, Francisco C., Ramos, Lucas M.
Publikováno v:
Phys. Rev. E, vol 109, 044138 (2024)
We calculated the spectral properties of two related families of non-Hermitian free-particle quantum chains with $N$-multispin interactions ($N=2,3,\ldots$). The first family have a $Z(N)$ symmetry and are described by free parafermions. The second o
Externí odkaz:
http://arxiv.org/abs/2402.09936
Publikováno v:
Phys. Rev. B 108, 214413 (2023)
We study the effects of quenched disorder in a class of quantum chains with (p+1)-multispin interactions exhibiting a free fermionic spectrum, paying special attention to the case p=2. Depending if disorder couples to (i) all the couplings or just to
Externí odkaz:
http://arxiv.org/abs/2308.16249
Publikováno v:
Phys. Rev. B 107, 235136 (2023)
A new family of free fermionic quantum spin chains with multispin interactions was recently introduced. Here we show that it is possible to build standard quantum Ising chains -- but with inhomogeneous couplings -- which have the same spectra as the
Externí odkaz:
http://arxiv.org/abs/2303.15284
Publikováno v:
Phys. Rev. B 104, 174206 (2021)
We present a numerical method for the evaluation of the mass gap, and the low-lying energy gaps, of a large family of free-fermionic and free-parafermionic quantum chains. The method is suitable for some generalizations of the quantum Ising and XY mo
Externí odkaz:
http://arxiv.org/abs/2109.01938
Publikováno v:
Phys. Rev. E 104, 054121 (2021)
The relationship between the eigenspectrum of Ising and XY quantum chains is well known. Although the Ising model has a $Z(2)$ symmetry and the XY model a $U(1)$ symmetry, both models are described in terms of free-fermionic quasi-particles. The ferm
Externí odkaz:
http://arxiv.org/abs/2108.04372
Publikováno v:
Phys. Rev. B 102, 235170 (2020)
We present a general study of the large family of exact integrable quantum chains with multispin interactions introduced recently in \cite{AP2020}. The exact integrability follows from the algebraic properties of the energy density operators defining
Externí odkaz:
http://arxiv.org/abs/2010.01116
Publikováno v:
Phys. Rev. B 102, 121101 (2020)
We introduce a new a family of $Z(N)$ multispins quantum chains with a free-fermionic ($N=2$) or free-parafermionic ($N>2$) eigenspectrum. The models have $(p+1)$ interacting spins ($p=1,2,\dots$), being Hermitian in the $Z(2)$ (Ising) case and non-H
Externí odkaz:
http://arxiv.org/abs/2005.14622
Esta obra se centra en el análisis, desde un punto de vista jurídico penal, del tratamiento legal, doctrinal y jurisprudencial de la criminalidad organizada, en general, y del narcotráfico organizado, en especial. Así, la lucha contra la criminal
Autor:
Rivera, Diego, Abellán, Javier, Rivera-Obón, Diego-José, Palazón, José Antonio, Martínez-Rico, Manuel, Alcaraz, Francisco, Johnson, Dennis, Obón, Concepción, Sosa, Pedro A.
Publikováno v:
In Current Plant Biology September 2023 35-36
