Project A modal interpretation for the quantum ontology 



INTERNAL SEMINARS 

December 2017 Seminar dictated by Tomás Veloz (Institute of Philosophy and Complexity Sciences, Santiago de Chile) on December 7^{th} 2017. Title: Interdisciplinary research in the Systemic Department at the Institute of Philosophy and Complexity Sciences. Abstract: . See the presentation in pdf Pictures of the meeting


November 2017 Seminar dictated by Olimpia Lombardi on November 23^{th} 2017. Title: Possibility in physics, the relevance to quantum mechanics. Abstract: On the basis of the assumption that the
quantum state codifies probabilities, and that probability measures
possibility, the examination of the nature of quantum possibility turns out
to be essential in the discussions about the interpretation of quantum
mechanics. See the presentation in pdf Pictures of the meeting








November 2017 Seminar dictated by Mariana Córdoba, Hernán Accorinti and Cristian López on November 9^{th} 2017. Title: Scientific pluralism as philosophical problem. Abstract: Pluralism has gained supporters in the
last decades, particularly in philosophy of science. According to some
authors, a pluralistic approach would provide the key to understand the
development of scientific practice and work out certain classical problems
in philosophy of science (like old and complex issues related to
reductionism, monism or fundamentalism). However, boundaries and scopes of
pluralism are unclear and fuzzy. Must pluralism in philosophy of science
only be epistemic? Does pluralism have to assume a coherence notion of truth
and back realism off? To put them in another way: may pluralism be realist
and hold a correspondence notion of truth? See the presentation in pdf Pictures of the meeting


October 2017 Seminar dictated by Olimpia Lombardi on October 26^{th} 2017. Title: Ontology of Quantum Field Theory. Abstract: First, we will consider the ontological
meaning of observables and invariance by stressing the relationship between
invariance and objectivity. Then we will consider the constraints that
invariance imposes onto any interpretation of quantum mechanics. These
arguments will allow us, finally, to extrapolate the conclusions drawn for
quantum mechanics to the case of quantum field theory. Pictures of the meeting


September 2017 Seminar dictated by Jesus Alberto Jaimes Arriaga on September 14^{th} 2017. Title: The Quantum Theory of Atoms in Molecules from a Bohmian perspective. Abstract: Unveiling the role played by the QTAIM in the
intertheoretical relationships between chemistry and physics is of
particular relevance. The possible connections or conceptual ruptures
between the QTAIM and both the SQM and the BQM deserve to be analyzed. This
analysis paves the way toward a possible explanation of the electron density
as used by the QTAIM in terms of the fundamental dynamics of Bohmian
particles. See the presentation in pdf Pictures of the meeting


August 2017 Seminar dictated by Sebastian Fortin on August 10^{th} 2017. Title: On the dimensional nature of the wave function: the case of quantum chemistry. Abstract: When quantum mechanics is applied to a Nparticles
system, the result is a 3Ndimension wave function. This fact introduces a
problem for interpretation: whereas the wave function has 3N dimensions, the
empirical world has only three. Discussions on this issue continue until
today. In this work we will introduce a chemical perspective by considering
the mathematical formalization of the orbital approximation used in quantum
chemistry, in order to suggest a possible solution to the problem. With this
formalization we can go beyond the approximation itself and propose a valid
argument for the ontology of quantum chemistry. See the presentation in pdf Pictures of the meeting


July 2017 Seminar dictated by Manuel Gadella on July 27^{th} 2017. Title: Timeasymmetric quantum mechanics Abstract: In this talk we will review the mathematical
tools that are suitable for a formulation of time asymmetry in quantum
mechanics. In particular, Hardy functions on a half plane and rigged Hilbert
spaces constructed with a subclass of Hardy functions. This time asymmetry
often appears in quantum scattering and, in particular, in resonance
scattering. We review the construction of Gamow vectors, often considered
Gamow states for resonances. A brief summary of the fundamental ideas of
time asymmetric quantum mechanics is presented in a last section. Pictures of the meeting


June 2017 Seminar dictated by Joseph Berkovitz on June 15^{th} 2017. Title: On de Finetti’s Instrumentalist Philosophy of Probability Abstract: De Finetti is commonly conceived as providing
an operational, behaviorist definition of degrees of belief and accordingly
of probabilities. His concept of probability is usually criticized because
considered too permissive, licensing imprudent epistemology. See the presentation in pdf Pictures of the meeting








May 2017 Seminar dictated by Olimpia Lombardi on May 04^{th} 2017. Title: The ModalHamiltonian Interpretation: measurement, invariance and ontology Abstract: The ModalHamiltonian Interpretation (MHI) of
quantum mechanics belongs to the modal family: it is a realist, noncollapse
interpretation according to which the quantum state describes the possible
properties of a system but not its actual properties. In particular, the
Hamiltonian of the closed quantum system plays a decisive role in the rule
that selects the definitevalued observables of the system. In this
presentation I will focus on three issues: See the presentation in pdf Pictures of the meeting








April 2017 Seminar dictated by Mariana Córdoba y Juan Camilo Martínez González on April 20^{th} 2017. Title: Intertheoretical relations in chemistry: the case of electronegativity Abstract: The relation among chemistry and physics is one
of the most maturely discussed issues in current philosophy of chemistry.
Although the discussion focused traditionally on the possibility of
determine intertheoretical links between the disciplines, during the last
years the question about the reference of the concepts involved in theories
has been imposed. Hence, the debate has entered in an ontological realm.
This was the case of the concept of orbital, chemical element and covalent
chemical bond. Within the frame of this debate, some philosophical problems
regarding quantum chemistry must be analyzed. Quantum chemistry deals with
the application of quantum physics to the description of molecules’ behavior
and properties. See the presentation in pdf Pictures of the meeting








March 2017 Seminar dictated by Mario Natiello March 23^{rd} 2017. Title: Del idealismo kantiano a la especulación pragmática. El recorrido que vio el nacimiento de la física teórica, de Ampère y Maxwell a Lorentz Abstract: En este trabajo haremos una revisión del
desarrollo del electromagnetismo en el siglo XIX. Mostraremos las múltiples
versiones y modificaciones que dieron lugar a la mutilación de las
ecuaciones de Maxwell. También estudiaremos las consecuencias filosóficas de
este desarrollo. See the presentation in pdf Pictures of the meeting








October 2016 Seminar dictated by Jesus Alberto Jaimes Arriaga October 27^{th} 2016. Title: An epistemological analysis of the Quantum Theory of Atoms and Molecules and its role in the definition of molecular structure Abstract: A modern theory of molecular structure that
proposes a complete reduction of chemistry to physics is the quantum theory
of atoms and molecules (QTAIM). This theory is based on the idea that a
molecule is a collection of atoms, and each atom contributes to the
properties of the whole system. The idea is feasible thank to the existence
of a zeroflow surface that limits each atom within a molecule. Likewise,
this surface is a topological property of the electron density and, in this
respect, this topology plays an important rol in the definition of molecular
structure, since it involves the concepts of atom, bond, structure and
structural stability. On the other hand, QTAIM is built on a strictly
mathematical structure, base on physical theorems like the viral theorem,
the Feynman force theorem and the Ehrenfest force theorem. With the help of
these theorems one is able to understand and predict the properties of a
system. Thus the theory offers as a whole a possibility to establish a link
between the language of chemistry and that of physics. See the presentation in pdf Pictures of the meeting








October 2016 Seminar dictated by Patricia Palacios October 06^{th} 2016. Title: Emergence and reduction in physics Abstract: In this presentation we will review the
different types of emergencies that are defined in the philosophy of science.
We will also discuss the paradigmatic cases of reduction, and the cases that
are problematic in the philosophy of physics. Finally we present a new form
of "modified reductionism" that could solve the problems of traditional
reductionism. See the presentation in pdf Pictures of the meeting








September 2016 Seminar dictated by Erick Rubio September 08^{th} 2016. Title: Ontological aspects on which complexity falls in the study of a biological system Abstract: The word "Complexity", used for the study of a
system, be it abstract or material, can adopt different interpretations
depending on whether it is brought to a sphere of ontological considerations
or epistemological considerations. In a sphere of ontological considerations,
one that interests us here, "Complexity" usually appears linked to
structural, functional or organizational aspects. The aim of this work is to
articulate these considerations in the query of whether the evolutionary
process has favored in some sense an increase of complexity in certain
biological items. See the presentation in pdf Pictures of the meeting








August 2016 Seminar dictated by Sebastian Fortin August 18^{th} 2016. Title: Relationship between chemistry and physics from Bohmian mechanics Abstract: In this work we propose a perspective different
from the traditional one to analyse philosophical problems in quantum
chemistry. We claim that the introduction of the Quantum Theory of Motion
may clarify some problems and to dissolve others. The possibility of
definite positions for fixed nuclei simplifies the interpretation of the
approximations in quantum chemistry. On the other hand this theory allows us
to analyse the position of an electron in a chemical bond. In the particular
case of the simple HH covalent bond, computations lead to conclude that the
electrons are in the middle of the two nuclei. In this way, we recover the
“picture” of the classical chemistry viewpoint. See the presentation in pdf Pictures of the meeting








July 2016 Seminar dictated by Stephan Hartmann July 11^{th} 2016. Title: Assessing Scientific Theories Abstract:  Science changed considerably over the last decades, and
so did the methodology of science. See the presentation in pdf Pictures of the meeting








June 2016 Seminar dictated by Hernán Accorinti June 16^{th} 2016. Title: Theories and models: an approach from quantum chemistry Abstract: In the twentieth century, theoretical physics was implicitly
adopted as the paradigm for the philosophy of science. This led to a theorycentered
perspective, according to which scientific knowledge is primarily encoded in
theories, whereas models only appear in specific applications. The present
work tries to provide a fresh perspective to the debate by considering an
example coming from quantum chemistry. See the presentation in pdf Pictures of the meeting








May 2016 Seminar dictated by Manuel Herrera on May 19^{th} 2016. Title: Physical Causality , Conserved Quantities and General Relativity Abstract: The Phil Dowe’s Conserved Quantities theory (CCT) reduces the causal interaction and causal processes to exchange and possession of conserved quantities, respectively; that is, amounts which are governed by conservation laws. CCT helps explain physical phenomena without major problems in the context of newtonian mechanics and Special Relativity. However, it is possible to identify some inconsistencies when CCT is applied in the field of General Relativity (GR). These difficulties are due to genuine there are drawbacks to enunciate principles of conservation within the framework of the GR. This research aims to provide some details and definitions that will allow the CCT correct application in the context of the GR. See the presentation in pdf Pictures of the meeting








April 2016 Seminar dictated by Juan Camilo Martínez Gonzáles and Mariana Córdoba on April 14^{th} 2016. Title: Intertheoretical relations in chemistry: the case of electronegativity Abstract: The relation among chemistry and physics is one
of the most maturely discussed issues in current philosophy of chemistry.
Although the discussion focused traditionally on the possibility of
determine intertheoretical links between the disciplines, during the last
years the question about the reference of the concepts involved in theories
has been imposed. Hence, the debate has entered in an ontological realm.
This was the case of the concept of orbital, chemical element and covalent
chemical bond. Within the frame of this debate, some philosophical problems
regarding quantum chemistry must be analyzed. Quantum chemistry deals with
the application of quantum physics to the description of molecules’ behavior
and properties. In this presentation, we will consider an important chemical
property: electronegativity. We will analyze if it is possible to reduce the
concept of electronegativity to a quantum mechanical concept. In order to do
this, we will explore how models of electronegativity are built in quantum
chemistry and which is the relation among them and quantum mechanics laws,
particularly approximative systems used to solve Schrödinger’s equation. See the presentation in pdf Pictures of the meeting








March 2016 Seminar dictated by Cristian Lopez on March 31^{st} 2016. Title: What Is There Inside the Great Smoky Dragon? DelayedChoice Experiments from a Modal Ontology of Properties Abstract: It is usually claimed that delayedchoice experiments challenge any realistic interpretation, encouraging an antirealistic approach strongly linked to complementarity. In this presentation, we shall support a realistic point of view to cope with quantumdelayed choice based on a modal ontology of properties. We shall argue that whereas quantum delayedchoice experiments are a tough nut to crack for an ontology of individuals, the paradoxical aspects dissolve when a modal ontology of properties for quantum mechanics is adopted. See the presentation in pdf Pictures of the meeting








February 2016 Seminar dictated by Dr. Pablo Razeto Barry on February 25^{th} 2016. Title: Mass as an ontological emergent property Abstract: In this talk I will try to show if it is possible to think of a mass as an ontological emergent property. Due to this, firstly I will review the problem of equivalence of mass and energy trying to give an alternative theory about it. Secondly I will review different meaning of the concept of emergent, given as instance for Bunge and Kim. The aim will be to give a new definition of ontological emergent property neither trivial nor empty and to present a clear scientific case of it too. Indeed I will try to show in which sense we can say that mass is an ontologically emergent property with respect to energy under the light of special relativity and quantum field theory.. See the presentation in pdf Pictures of the meeting








2015 October 15, 2016: Mariana Córdoba and Juan Camilo Martínez González presented his work “Clases naturales en química” (“Natural kinds in chemistry”).


Philosophy of Science Group, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires  Ciudad Universitaria, Pabellón II / Buenos Aires, Argentina 
