Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Fabio, Di Cosmo"'
Publikováno v:
Il Nuovo Cimento C, vol 38, issue 5, 2015
This paper starts by describing the dynamics of the electron-monopole system at both classical and quantum level by a suitable reduction procedure. This suggests, in order to realise the space of states for quantum systems which are classically descr
Externí odkaz:
http://arxiv.org/abs/1609.06468
Autor:
Florio M. Ciaglia, Fabio Di Cosmo, Alberto Ibort, Giuseppe Marmo, Luca Schiavone, Alessandro Zampini
Publikováno v:
Entropy, Vol 24, Iss 1, p 75 (2022)
This paper begins the study of the relation between causality and quantum mechanics, taking advantage of the groupoidal description of quantum mechanical systems inspired by Schwinger’s picture of quantum mechanics. After identifying causal structu
Externí odkaz:
https://doaj.org/article/71bc572f10e14a8aa546937c22d38585
Autor:
Florio M. Ciaglia, Fabio Di Cosmo, Alberto Ibort, Giuseppe Marmo, Luca Schiavone, Alessandro Zampini
Publikováno v:
Symmetry, Vol 14, Iss 1, p 70 (2022)
As the space of solutions of the first-order Hamiltonian field theory has a presymplectic structure, we describe a class of conserved charges associated with the momentum map, determined by a symmetry group of transformations. A gauge theory is dealt
Externí odkaz:
https://doaj.org/article/602a5498f47c45dd881ac682c68bf7aa
Autor:
Arturo Konderak, Paolo Facchi, Fabio Di Cosmo, Florio M. Ciaglia, Alberto Ibort, Giuseppe Marmo
It is well known that certain features of a quantum theory cannot be described in the standard picture on a Hilbert space. In particular, this happens when we try to formally frame a quantum field theory, or a thermodynamic system with finite density
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcf31c54a1d77bf91d9a067d2ef26ccf
http://arxiv.org/abs/2302.01050
http://arxiv.org/abs/2302.01050
Publikováno v:
Entropy, Vol 22, Iss 11, p 1292 (2020)
The evolution of states of the composition of classical and quantum systems in the groupoid formalism for physical theories introduced recently is discussed. It is shown that the notion of a classical system, in the sense of Birkhoff and von Neumann,
Externí odkaz:
https://doaj.org/article/78db50e999db408095442cd2bd693abd
Publikováno v:
Symmetry, Vol 11, Iss 8, p 1047 (2019)
An analysis of the invariance properties of self-adjoint extensions of symmetric operators under the action of a group of symmetries is presented. For a given group G, criteria for the existence of G-invariant self-adjoint extensions of the Laplace
Externí odkaz:
https://doaj.org/article/60c523c0d1534f3083a56708c418a392
In this paper the problem of tomographic reconstruction of states is investigated within the so-called Schwinger's picture of Quantum Mechanics in which a groupoid is associated with every quantum system. The attention is focused on spin tomography:
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c632f084192c3b9fec573efafd6f935
http://arxiv.org/abs/2205.00170
http://arxiv.org/abs/2205.00170
Autor:
Zampini, Florio M. Ciaglia, Fabio Di Cosmo, Alberto Ibort, Giuseppe Marmo, Luca Schiavone, Alessandro
Publikováno v:
Entropy; Volume 24; Issue 1; Pages: 75
This paper begins the study of the relation between causality and quantum mechanics, taking advantage of the groupoidal description of quantum mechanical systems inspired by Schwinger’s picture of quantum mechanics. After identifying causal structu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::ff1f5fd471ef019d0b92e71634fea4dc
Autor:
Florio M. Ciaglia, Fabio Di Cosmo, Alberto Ibort, Giuseppe Marmo, Luca Schiavone, Alessandro Zampini
Publikováno v:
Symmetry; Volume 14; Issue 1; Pages: 70
Symmetry, Vol 14, Iss 70, p 70 (2022)
Symmetry, Vol 14, Iss 70, p 70 (2022)
Noticing that the space of the solutions of a first order Hamiltonian field theory has a pre-symplectic structure, we describe a class of conserved charges on it associated to the momentum map determined by any symmetry group of transformations. Gaug
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d138fff61669e367c5672b10065df7a
http://arxiv.org/abs/2111.13066
http://arxiv.org/abs/2111.13066
Autor:
Giuseppe Marmo, Fabio Di Cosmo, Alberto Ibort, Florio M. Ciaglia, Alessandro Zampini, Luca Schiavone
Using the recently developed groupoidal description of Schwinger's picture of Quantum Mechanics, a new approach to Dirac's fundamental question on the role of the Lagrangian in Quantum Mechanics is provided. It is shown that a function $\ell$ on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82490e53a5a4864828e093f8deb6a221
http://arxiv.org/abs/2106.00998
http://arxiv.org/abs/2106.00998