Selected Papers


Forthcoming

Journal for General Philosophy of Science

Cuesta, J.A.F. (2026). The Question of Quantum Logics. Journal for General Philosophy of Science. Forthcoming.

Abstract — Standard quantum logics are often treated either as deviant calculi for experimental discourse or as mere mathematical structures. I argue that both views rest on a confusion between the Hilbert-space event structure and natural language. This confusion also underlies both Putnam’s revisionary programme and Kripke’s adoption- based critique through a shared commitment to logical monism. I propose a three-layer model in which classical logic functions as the logica utens of theory construction, whereas standard quantum logics function as the theory-internal inferential structures of non-relativistic quantum mechanics. This yields a domain-specific account of their normative role.

Logique et Analyse

Lombardi, O., Pascualini, M., Jorge, J.P. and Cuesta, J.A.F. (2026). Towards a logic of modalities for quantum mechanics. Logique et Analyse. Special Issue. Forthcoming.

Abstract — Modal Interpretations of quantum mechanics distinguish between the realm of possibility, where the dynamical state determines what may be the case, and the realm of actuality, where the value state represents what actually is the case. In particular, the Modal-Hamiltonian Interpretation proposes an ontology in which there are no individual objects: quantum systems are characterised as non-individual bundles of properties. The aim of the present paper is to propose some first steps towards the development of a new modal logic adapted to describe a possibilist modality in an ontology of properties. The main idea consists in conceiving possibility as fundamental and introducing actuality as an operator acting on possible facts. On this basis, propositions referring to possible facts and propositions referring to actual facts are distinguished, and some relations between the realm of possibility and the realm of actuality are introduced.

Culturas Científicas

Cuesta, J.A.F. (2026). Lógica y Física: Ontologías, Teorías y Datos Empíricos [In Spanish: Logic and Physics: Ontologies, Theories and Empirical Data]. Culturas Científicas. Special Issue. Forthcoming.

Abstract Standard quantum logics are the only non-classical logical formalism extracted from within a scientific theory formulated in classical logic. This feature motivates a three-level epistemological model: L1 fixes formal ontology, L2 contains theories and their event structures, and L3 comprises empirical data. The model shows that Putnam and Kripke share the same monist assumption, and it allows one to maintain that logic is empirical at L2 and a priori in a functional sense at L1.


2026

International Journal of Theoretical Physics

Cuesta, J.A.F. and Jorge, J.P. (2026). Beyond Quantum Individuals: Quasi-Sets and the Philosophy of Quantum Logics. International Journal of Theoretical Physics, 65(107).

Abstract — Standard quantum logics are typically defined over the orthomodular lattice associated with Hilbert space, yet there is no consensus on how this structure should be interpreted logically or ontologically. This paper offers a unified perspective on these issues by combining an epistemological three-layer model for scientific theories with quantum set theory. We argue that quasi-set theory is best understood not as an alternative semantics for quantum logics, but as an ontological framework operating at a different epistemological level: the ontological one. From this standpoint, the distinctive non-classical features of quantum logic are explained by representational assumptions about identity and individuality, rather than by positing any direct revisions of the logical principles themselves.


2025

Synthese

Cuesta, J.A.F., Piazzai, M. and Rivieccio, U. (2025). Quantum logics in cognition: A proposal. Synthese, 206(1), 1–34.

Abstract — Quantum logics are non-classical logics defined from the mathematical formalism of quantum mechanics. While they are conventionally used to model inferential processes in physics, their scope of application is potentially much broader. We argue that quantum logics can serve as a framework to model human cognition, as their semantics seem able to capture not only how people make inferences about quantum mechanics, but also how they reason in general. We begin by defining quantum logics from an algebraic perspective in a classical first-order setting. Next, we present findings from cognitive science that suggest these logics are apt to characterize human reasoning. We then consider how such a connection between quantum logics and cognition contributes to longstanding philosophical debates about the epistemological status of logic and the problem of adoption. Finally, we discuss how cognitive applications of quantum logics could advance our understanding of human psychology and even quantum foundations.

Análisis. Revista de Investigación Filosófica

Cuesta, J.A.F. (2025). Suárez’s Paradox and Contemporary Debates in the Philosophy of Quantum Logics. Análisis. Revista de Investigación Filosófica, 12(1), 93–105.

Abstract — In this commentary on Suárez’s recently published work (2025), I aim to retrieve an original argument hitherto unpublished –which I refer to as Suárez’s Paradox (Suárez, 1992)– together with the response he himself proposes. Drawing on both the paradox and the epistemological model proposed to resolve it, I argue that we are presented with a theoretical framework capable of enabling a philosophically significant approach to current debates on the interpretation of quantum logics. I conclude by assessing the value of this proposal not only in terms of its internal content but also considering its capacity to bridge two philosophical domains that, over recent decades, have largely evolved in isolation: the philosophy of logic and the philosophy of science.

Logos & Episteme

Sánchez-Ovcharov, C., Gherab-Martín, K. and Cuesta, J.A.F. (2025). Quantum Counterfactuals: Interaction-Free Measurements and Classical Logic’s Constraints. Logos & Episteme, 16(4), 455–477.

Abstract — The aim of this paper is to carry out a critical analysis of the uses of the material conditionals employed to represent the counterfactual detections taking place inside Elitzur-Vaidman quantum bomb detectors in so-called quantum interaction free measurements (IFMs). We provide an exhaustive philosophical study of this classical approach focusing on its limitations. To do so, we formulate atomic propositions corresponding to the observable events of the experiments, to overcome the shortcomings of the conditional expression. Finally, we show that the standard definition ofcounterfactuality in quantum contexts based on classical logic is epistemologically too limited, presenting quantum logics as the most promising possible approach to address this type of quantum counterfactuality.

Others


Research Groups

Mathesis Research Group in Formal Philosophy (Faculty of Philosophy, UCM) — Coordinators: Elia Zardini and Víctor Aranda.

GISC-UCM — Interdisciplinary Group on Complex Systems (Faculty of Physics, UCM). Coordinators: Ricardo Brito López and Francisco Domínguez-Adame Acosta.


Research Projects

The Philosophy of Statistical Modelling in Natural Sciences

PID2024-159749NB-I00 — PHILSTATMODNAT

Funder: Ministerio de Ciencia — PI: Mauricio Suárez

Philosophical Argumentation in the Foundations of Mathematics

PR17/24-31887 — AFIM

Funder: Comunidad de Madrid — PI: Víctor Aranda