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Effect algebras form a formal algebraic description of the structure of the so-called effects in a Hilbert space which serves as an event-state space for effects in quantum mechanics. This is why effect algebras are considered as logics of…

Logic · Mathematics 2019-08-16 Ivan Chajda , Helmut Länger

Effect algebras form an algebraic formalization of the logic of quantum mechanics. For lattice effect algebras E we investigate a natural implication and prove that the implication reduct of E is term equivalent to E. Then we present a…

Logic · Mathematics 2020-01-22 Ivan Chajda , Radomír Halaš , Helmut Länger

Similarly as classical propositional calculus is based algebraically on Boolean algebras, the logic of quantum mechanics was based on orthomodular lattices by G. Birkhoff and J. von Neumann and K. Husimi. However, this logic does not…

Logic · Mathematics 2022-11-16 Ivan Chajda , Helmut Länger

Algebraic effects are computational effects that can be described with a set of basic operations and equations between them. As many interesting effect handlers do not respect these equations, most approaches assume a trivial theory,…

Logic in Computer Science · Computer Science 2020-05-29 Žiga Lukšič , Matija Pretnar

Effect algebras and pseudoeffect algebras were introduced by Foulis, Bennett, Dvurecenskij and Vetterlein as so-called quantum structures which serve as an algebraic axiomatization of the logic of quantum mechanics. A natural question…

Logic · Mathematics 2019-07-08 Ivan Chajda , Helmut Länger

We present a mathematical framework for quantum mechanics in which the basic entities and operations have physical significance. In this framework the primitive concepts are states and effects and the resulting mathematical structure is a…

Quantum Physics · Physics 2018-02-06 Stan Gudder

The aim of the paper is to establish a certain logic corresponding to lattice effect algebras. First, we answer a natural question whether a lattice effect algebra can be represented by means of a groupoid-like structure. We establish a…

Logic · Mathematics 2018-10-15 I. Chajda , H. Länger , J. Paseka

Quantum effects play an important role in quantum measurement theory. The set of all quantum effects can be organized into an algebraical structure called effect algebra. In this paper, we study various topologies on the Hilbert space…

Quantum Physics · Physics 2015-05-13 Zhihao Ma , Sen Zhu

For effect algebras, the so-called tense operators were already introduced by Chajda and Paseka. They presented also a canonical construction of them using the notion of a time frame. Tense operators express the quantifiers "it is always…

Logic · Mathematics 2018-09-12 Ivan Chajda , Jan Paseka

In a recent work Foulis and Pulmannov\' a \cite{Foulis2012} studied the logical connectives in lattice effect algebras. In this paper we extend their study and investigate further the logical calculus for which the lattice effect algebras…

Logic · Mathematics 2019-05-22 Soroush Rafiee Rad , Amir Hossein Sharafi , Sonja Smets

Pseudo-effect algebras are partial algebraic structures, that were introduced as a non-commutative generalization of effect algebras. In the present paper, lattice ordered pseudo-effect algebras are considered as possible algebraic…

Rings and Algebras · Mathematics 2010-07-05 David J. Foulis , Sylvia Pulmannova , Elena Vincekova

By using the sequential effect algebra theory, we establish the partitions and refinements of quantum logics and study their entropies.

Mathematical Physics · Physics 2017-11-09 Wang Jiamei , Wu Junde , Cho Minhyung

A quantitative model of concurrent interaction is introduced. The basic objects are linear combinations of partial order relations, acted upon by a group of permutations that represents potential non-determinism in synchronisation. This…

Logic in Computer Science · Computer Science 2011-07-08 Emmanuel Beffara

When an algebraic logic based on a poset instead of a lattice is investigated then there is a natural problem how to introduce the connective implication to be everywhere defined and satisfying (left) adjointness with the connective…

Logic · Mathematics 2019-10-22 Ivan Chajda , Helmut Länger

Effectus theory is a new branch of categorical logic that aims to capture the essentials of quantum logic, with probabilistic and Boolean logic as special cases. Predicates in effectus theory are not subobjects having a Heyting algebra…

Logic in Computer Science · Computer Science 2015-12-21 Kenta Cho , Bart Jacobs , Bas Westerbaan , Abraham Westerbaan

An often used model for quantum theory is to associate to every physical system a C*-algebra. From a physical point of view it is unclear why operator algebras would form a good description of nature. In this paper, we find a set of…

Quantum Physics · Physics 2024-08-07 John van de Wetering

In this article, we only consider finite effect algebras. We define the concepts of classical and quantum effect algebras and show that an effect algebra $E$ is classical if and only if there exists an observable that measures every effect…

Quantum Physics · Physics 2024-07-16 Stan Gudder

We introduce the notion of implicative algebra, a simple algebraic structure intended to factorize the model constructions underlying forcing and realizability (both in intuitionistic and classical logic). The salient feature of this…

Logic · Mathematics 2020-07-15 Alexandre Miquel

Not all logical systems can be captured using algebras. We see this in classical logic (formalized by Boolean algebras) and many-valued logics (like Lukasiewicz logic with MV-algebras). Even quantum mechanics, initially formalized with…

Logic · Mathematics 2024-07-01 Ivan Chajda , Helmut Länger , Antonio Ledda , Jan Paseka , Gandolfo Vergottini

Algebraic effects are computational effects that can be represented by an equational theory whose operations produce the effects at hand. The free model of this theory induces the expected computational monad for the corresponding effect.…

Logic in Computer Science · Computer Science 2015-07-01 Gordon D Plotkin , Matija Pretnar
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