Interaction between different kinds of quantum phase transitions

We employ two different Lipkin-like, exactly solvable models so as to display features of the competition between different fermion–fermion quantum interactions (at finite temperatures). One of our two interactions mimics the pairing interaction responsible for superconductivity. The other interacti...

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Detalles Bibliográficos
Autores principales:	Plastino, Ángel Luis, Ferri, Gustavo L., Plastino, Ángel Ricardo
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2021
Materias:	Física Pairing interaction Monopole interaction Quantum phase transitions
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/125442 https://www.mdpi.com/2624-960X/3/2/15
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-125442
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Física Pairing interaction Monopole interaction Quantum phase transitions
spellingShingle	Física Pairing interaction Monopole interaction Quantum phase transitions Plastino, Ángel Luis Ferri, Gustavo L. Plastino, Ángel Ricardo Interaction between different kinds of quantum phase transitions
topic_facet	Física Pairing interaction Monopole interaction Quantum phase transitions
description	We employ two different Lipkin-like, exactly solvable models so as to display features of the competition between different fermion–fermion quantum interactions (at finite temperatures). One of our two interactions mimics the pairing interaction responsible for superconductivity. The other interaction is a monopole one that resembles the so-called quadrupole one, much used in nuclear physics as a residual interaction. The pairing versus monopole effects here observed afford for some interesting insights into the intricacies of the quantum many body problem, in particular with regards to so-called quantum phase transitions (strictly, level crossings).
format	Articulo Articulo
author	Plastino, Ángel Luis Ferri, Gustavo L. Plastino, Ángel Ricardo
author_facet	Plastino, Ángel Luis Ferri, Gustavo L. Plastino, Ángel Ricardo
author_sort	Plastino, Ángel Luis
title	Interaction between different kinds of quantum phase transitions
title_short	Interaction between different kinds of quantum phase transitions
title_full	Interaction between different kinds of quantum phase transitions
title_fullStr	Interaction between different kinds of quantum phase transitions
title_full_unstemmed	Interaction between different kinds of quantum phase transitions
title_sort	interaction between different kinds of quantum phase transitions
publishDate	2021
url	http://sedici.unlp.edu.ar/handle/10915/125442 https://www.mdpi.com/2624-960X/3/2/15
work_keys_str_mv	AT plastinoangelluis interactionbetweendifferentkindsofquantumphasetransitions AT ferrigustavol interactionbetweendifferentkindsofquantumphasetransitions AT plastinoangelricardo interactionbetweendifferentkindsofquantumphasetransitions
bdutipo_str	Repositorios
_version_	1764820451682418688

Interaction between different kinds of quantum phase transitions

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