103,494 research outputs found
Lógicas multivaluadas y la axiomatización de la lógica computacional cuántica
No full textFil: Domenech, G. Universidad de Buenos Aires; Argentina.Fil: Domenech, G. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Astronomía y Física del Espacio; Argentina.Fil: Freytes, H. Universidad Nacional de Rosario. Facultad de Humanidades y Arte. Escuela de Filosofía; Argentina.El significado de una sentencia elemental en la lógica asociada a la computación cuántica está representado por la cantidad de información cuántica codificada en una colección de qbits, el equivalente cuántico de los bits clásicos (0, 1 o F, V), o de qmixesFil: Domenech, G. Universidad de Buenos Aires; Argentina.Fil: Domenech, G. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Astronomía y Física del Espacio; Argentina.Fil: Freytes, H. Universidad Nacional de Rosario. Facultad de Humanidades y Arte. Escuela de Filosofía; Argentina
Interpreting the Modal Kochen-Specker Theorem: Possibility and Many Worlds in Quantum Mechanics
No full textIn this paper we attempt to physically interpret the Modal Kochen-Specker (MKS) theorem. In order to do so, we analyze the features of the possible properties about quantum systems arising from the elements in an orthomodular lattice and distinguish the use of “possibility” in the classical and quantum formalisms. Taking into account the modal and many worlds non-collapse interpretation of the projection postulate, we discuss how the MKS theorem rules the constrains to actualization, and thus, the relation between actual and possible realms
Many worlds and modality in the interpretation of quantum mechanics: an algebraic approach
No full textMany worlds interpretations (MWI) of quantum mechanics avoid the measurement problem by considering every term in the quantum superposition as actual. A seemingly opposed solution is proposed by modal interpretations (MI) which state that quantum mechanics does not provide an account of what ?actually is the case?, but rather deals with what ?might be the case?, i.e. with possibilities. In this paper we provide an algebraic framework which allows us to analyze in depth the modal aspects of MWI. Within our general formal scheme we also provide a formal comparison between MWI and MI, in particular, we provide a formal understanding of why ?even though both interpretations share the same formal structure? MI fall pray of Kochen-Specker (KS) type contradictions while MWI escape them.Fil: Domenech, Graciela. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Freytes Solari, Hector Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universita degli Studi di Cagliari; ItaliaFil: de Ronde, Christian. Vrije Unviversiteit Brussel; Bélgica. Universidad de Buenos Aires. Facultad de Filosofía y Letras. Instituto de Filosofía "Dr. Alejandro Korn"; Argentin
Probing new physics with exotic compact objects: the role of fermion soliton stars
No full textMany of the biggest puzzles in physics, such as the nature of dark matter and the
behavior of spacetime singularities, stem from the interplay between gravity and
quantum mechanics. Compact objects, like neutron stars and black holes, offer a
unique setting to investigate these questions, as they probe strong gravitational
fields and may be the only possible way to observe dark particles. With the recent
discovery of gravitational waves, we now have an uncharted way to study such
extreme environments, potentially shedding light on those fundamental issues.
This thesis focuses on fermion soliton stars, a class of compact objects that emerge
from a theory in which a nonlinear self-interacting scalar field couples with fermions
via a Yukawa interaction, resulting in an effective fermion mass that depends on the
fluid properties. We elucidate the fundamental features of this model and its links
to the Standard Model and beyond. Moreover, we provide distinctive signatures of
the model in the gravitational wave signal, offering a way to distinguish fermion
soliton stars from other types of compact objects
Data for: Two decades of monitoring in marine debris ingestion in loggerhead sea turtle, Caretta caretta, from the western Mediterranean.
No full textTable S2. The raw data from the analysed turtles in the present study. Acronyms: turtle identification number (ID), Curved Carapace Length (CCL), turtle weight (W), ingested plastic weight (PW), ingested anthropogenic debris weight (ADW) and latitude (Lat.). The asterisk (*) indicates that weight of the turtles was estimated from a linear regression (see Materials and Methods section for details). Metric units: CCL (cm), W (kg), PW (g), ADW (g) and Lat. (decimal degrees)
Expérimentations numériques sur les variantes et paramètres de la méthode du recuit simulé
No full textLa méthode du recuit simulé, largement utilisée en génie des procédés, nécessite le codage des solutions potentielles, et comporte de nombreuses variantes dans sa mise en oeuvre ainsi que plusieurs paramètres de contrôle. Ces divers points sont étudiés sur la base de six fonctions à solutions connues, afin de déterminer des règles générales d’utilisation de la procédure. La méthode stochastique d’acceptation des solutions de Metropolis et al. (1953) combinée avec le schéma de décroissance géométrique de la température de Kirkpatrick et al. (1982) sont les variantes les plus efficaces. Parmi les trois codages test´es, aucun ne supplante les autres. La température initiale, la longueur du palier de température, le facteur multiplicatif de décroissance de la température et le test d’arrêt ont été étudiés au moyen d’un plan factoriel 24. Le paramètre le plus important est la longueur du palier de température, le moins important est la température initiale, et le coefficient de décroissance de la température et le nombre de paliers pour effectuer l’arrêt ont une importance similaire
Contextual logic for quantum systems
No full textIn this work we build a quantum logic that allows us to refer to physical magnitudes
pertaining to different contexts from a fixed one without the contradictions
with quantum mechanics expressed in no-go theorems. This logic arises from considering
a sheaf over a topological space associated with the Boolean sublattices of
the ortholattice of closed subspaces of the Hilbert space of the physical system.
Different from standard quantum logics, the contextual logic maintains a distributive
lattice structure and a good definition of implication as a residue of the
conjunctio
Quantum computational logic with mixed states
No full textIn this paper we solve the problem how to axiomatize a system of quantum computational gates known as the
Poincar ́e irreversible quantum computational system. A Hilbert-style calculus is introduced obtaining a strong
completeness theorem
Fuzzy propositional logic associated with quantum computational gates
No full textWe apply residuated structures associated with fuzzy logic to develop certain aspects of 6
information processing in quantum computing from a logical perspective. For this pur- 7
pose, we introduce an axiomatic system whose natural interpretation is the irreversible 8
quantum Poincar ́e structur
Logicas difusas asociadas a compuertas Cuanticas
No full textIn this paper we use residuated structures associated to fuzzy logic in order to develope certain features of the
processing of quantum information. With this purpose, we introduce an axiomatic system whose natural
interpretation is the Poincaré irreversible structure
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