Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Losada, Marcelo"'
The problem of quantum state estimation is crucial in the development of quantum technologies. In particular, the use of symmetric quantum states is useful in many relevant applications. In this work, we analyze the task of reconstructing the density
Externí odkaz:
http://arxiv.org/abs/2408.09183
Autor:
Damián López
Publikováno v:
Rey Desnudo: Revista de Libros, Vol 8, Iss 15 (2019)
Externí odkaz:
https://doaj.org/article/c5a6a6e6cde744299e69a1f4d549d61e
The Jensen-Shannon divergence has been successfully applied as a segmentation tool for symbolic sequences, that is to separate the sequence into subsequences with the same symbolic content. In this work, we propose a method, based on the the Jensen-S
Externí odkaz:
http://arxiv.org/abs/2304.09141
In this work, we show how to parameterize a density matrix that has an arbitrary symmetry, knowing the generators of the Lie algebra (if the symmetry group is a connected Lie group) or the generators of its underlying group (in case it is finite). Th
Externí odkaz:
http://arxiv.org/abs/2208.06540
When an informationally complete measurement is not available, the reconstruction of the density operator that describes the state of a quantum system can be accomplish, in a reliable way, by adopting the maximum entropy principle (MaxEnt principle),
Externí odkaz:
http://arxiv.org/abs/2109.10806
Publikováno v:
Eur. Phys. J. Plus 135, 738 (2020)
Gamow vectors have been developed in order to give a mathematical description for quantum decay phenomena. Mainly, they have been applied to radioactive phenomena, scattering and to some decoherence models. They play a crucial role in the description
Externí odkaz:
http://arxiv.org/abs/2009.10928
Publikováno v:
Phys. Rev. A 100, 052114 (2019)
In this article we reconstruct the Frauchiger and Renner argument, taking into account that the assertions of the argument are made at different times. To do this, we use a formalism of quantum histories, namely the Theory of Consistent Histories. We
Externí odkaz:
http://arxiv.org/abs/1907.10095
A fundamental aspect of the quantum-to-classical limit is the transition from a non-commutative algebra of observables to commutative one. However, this transition is not possible if we only consider unitary evolutions. One way to describe this trans
Externí odkaz:
http://arxiv.org/abs/1906.07226
In order to characterize quantum states within the context of information geometry, we propose a generalization of the Gaussian model, which we called the Hermite-Gaussian model. We obtain the Fisher-Rao metric and the scalar curvature for this model
Externí odkaz:
http://arxiv.org/abs/1811.01207
Publikováno v:
In Physica A: Statistical Mechanics and its Applications 1 February 2023 611