Complex behavior of the density in composite quantum systems

Autor: J. G. Esteve, Filiberto Ares, Alberto Usón, Fernando Falceto

Publikováno v: Zaguán: Repositorio Digital de la Universidad de Zaragoza
Universidad de Zaragoza
Zaguán. Repositorio Digital de la Universidad de Zaragoza
Consejo Superior de Investigaciones Científicas (CSIC)

In this paper, we study how the probability of presence of a particle is distributed between the two parts of a composite fermionic system. We uncover that the difference of probability depends on the energy in a striking way and show the pattern of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bb6a682fce0a25fa0a78a15a22b9c45
http://zaguan.unizar.es/record/96101

Entanglement entropy in the Long-Range Kitaev chain

Autor: Filiberto Ares, Amilcar R. de Queiroz, Fernando Falceto, J. G. Esteve

Publikováno v: Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname

In this paper we complete the study on the asymptotic behaviour of the entanglement entropy for Kitaev chains with long range pairing. We discover that when the couplings decay with the distance with a critical exponent new properties for the asympto

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3cffc1ca10265561595c08764eb04448

Nonextensive thermodynamic functions in the Schrödinger-Gibbs ensemble

Autor: José Luis Alonso, Jesús Clemente-Gallardo, Andrea Castro, J. C. Cuchí, Fernando Falceto, J. G. Esteve, Pablo Echenique

Publikováno v: Repositorio Abierto de la UdL
Universitad de Lleida
Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname
Digital.CSIC. Repositorio Institucional del CSIC
Recercat. Dipósit de la Recerca de Catalunya

© 2015 American Physical Society. Schrödinger suggested that thermodynamical functions cannot be based on the gratuitous allegation that quantum-mechanical levels (typically the orthogonal eigenstates of the Hamiltonian operator) are the only allow

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c0e261d2afb54b608cbce5e07b31bbd
http://hdl.handle.net/10459.1/65051

Entanglement entropy and Möbius transformations for critical fermionic chains

Autor: Filiberto Ares, Fernando Falceto, J. G. Esteve, Amilcar R. de Queiroz

Publikováno v: Journal of Statistical Mechanics: Theory and Experiment. 2017:063104

Entanglement entropy may display a striking new symmetry under M\"obius transformations. This symmetry was analysed in our previous work for the case of a non-critical (gapped) free homogeneous fermionic chain invariant under parity and charge conjug

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cec02ae5a2ab52ecce2212760bcdfe68
https://doi.org/10.1088/1742-5468/aa71dc

Neutrino mass and Extreme Value Distributions in $\beta$-decay

Autor: Fernando Falceto, J. G. Esteve

We propose a new application of the Extreme Value Theory for distributions with compact support. The novelty of our proposal is the use of these tools to estimate the neutrino mass from the energy spectrum of electrons in $\beta$-decay. In this way t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7b8610f9c3e3d18fc0806f20b7cff1e
http://arxiv.org/abs/1401.1644