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Decomposition of state spaces into dynamically different components is helpful for the understanding of dynamical behaviors of complex systems. A Conley type decomposition theorem is proved for nonautonomous dynamical systems defined on a…

Dynamical Systems · Mathematics 2009-03-27 Xiaopeng Chen , Jinqiao Duan

We consider the problem of private set membership aggregation of $N$ parties by using an entangled quantum state. In this setting, the $N$ parties, which share an entangled state, aim to \emph{privately} know the number of times each…

Information Theory · Computer Science 2024-01-30 Alptug Aytekin , Mohamed Nomeir , Sennur Ulukus

We find a method to construct iteratively from a non-degenerate involutive set-theoretic solution of the Yang-Baxter equation an infinite family of very large non-degenerate involutive set-theoretic solutions. In case the initial solution…

Group Theory · Mathematics 2022-12-29 Fabienne Chouraqui

An important open problem in quantum information theory is the question of the existence of NPT bound entanglement. In the past years, little progress has been made, mainly because of the lack of mathematical tools to address the problem.…

Quantum Physics · Physics 2007-05-23 Lieven Clarisse

Let $n$ be a non-negative integer and $A=\{a_1,\ldots,a_k\}$ be a multi-set with $k$ not necessarily distinct members, where $a_1\leqslant\ldots\leqslant a_k$. We denote by $\Delta(n,A)$ the number of ways to partition $n$ as the form…

Combinatorics · Mathematics 2018-05-22 Toufik Mansour , Madjid Mirzavaziri , Daniel Yaqubi

We study a generalization of entanglement testing which we call the "hidden cut problem." Taking as input copies of an $n$-qubit pure state which is product across an unknown bipartition, the goal is to learn precisely where the state is…

Quantum Physics · Physics 2024-10-17 Adam Bouland , Tudor Giurgica-Tiron , John Wright

I consider deterministic distinguishability of a set of orthogonal, bipartite states when only a single copy is available and the parties are restricted to local operations and classical communication, but with the additional requirement…

Quantum Physics · Physics 2009-11-13 Scott M. Cohen

In this work we study a general shape optimization problem where the state equation is given in terms of a nonlocal operator. Examples of the problems considered are monotone combinations of fractional eigenvalues. Moreover, we also analyze…

Analysis of PDEs · Mathematics 2016-12-28 Julian Fernandez Bonder , Antonella Ritorto , Ariel Martin Salort

We present in this paper a general algorithm for solving first-order formulas in particular theories called "decomposable theories". First of all, using special quantifiers, we give a formal characterization of decomposable theories and…

Logic in Computer Science · Computer Science 2007-05-23 Khalil Djelloul

Entanglement is a central resource in quantum information science, yet its structure in high dimensions remains notoriously difficult to characterize. One of the few general results on high-dimensional entanglement is given by peel-off…

Quantum Physics · Physics 2025-09-10 Robin Krebs , Mariami Gachechiladze

We create displaced number states, which are nonclassical generalizations of coherent states, of a vibrational mode of a single trapped ion.

Quantum Physics · Physics 2014-05-22 F. Ziesel , T. Ruster , A. Walther , H. Kaufmann , K. Singer , F. Schmidt-Kaler , U. G. Poschinger

In the paper we present results to develop an irreducible theory of complex systems in terms of self-organization processes of prime integer relations. Based on the integers and controlled by arithmetic only the self-organization processes…

Adaptation and Self-Organizing Systems · Physics 2007-05-23 Victor Korotkikh , Galina Korotkikh

It would be a heavenly reward if there were a method of weighing theories and sentences in such a way that a theory could never prove a heavier sentence (Chaitin's Heuristic Principle). Alas, no satisfactory measure has been found so far,…

Logic · Mathematics 2026-04-13 Saeed Salehi

Splitting methods for the numerical integration of differential equations of order greater than two involve necessarily negative coefficients. This order barrier can be overcome by considering complex coefficients with positive real part.…

Numerical Analysis · Mathematics 2015-04-10 Sergio Blanes , Fernando Casas , Ander Murua

In this letter we obtain sharp estimates on the growth rate of solutions to a nonlinear ODE with a nonautonomous forcing term. The equation is superlinear in the state variable and hence solutions exhibit rapid growth and finite-time…

Classical Analysis and ODEs · Mathematics 2017-05-23 John A. D. Appleby , Denis D. Patterson

We consider the problem of existence of bound entangled states with non-positive partial transpose (NPT). As one knows, existence of such states would in particular imply nonadditivity of distillable entanglement. Moreover it would rule out…

Quantum Physics · Physics 2010-08-09 Łukasz Pankowski , Marco Piani , Michał Horodecki , Paweł Horodecki

We introduce the idea that the P vs NP problem can have a finer structure. Given the NP complete problem of interest, the configurations space of the problem can be divided in (at least) two regions. In one region, polynomial algorithms to…

Statistical Mechanics · Physics 2026-01-28 Fabrizio Canfora , Marco Cedeno

There is a decomposition of a Lie algebra for open matrix chains akin to the triangular decomposition. We use this decomposition to construct unitary irreducible representations. All multiple meson states can be retrieved this way.…

Mathematical Physics · Physics 2015-06-26 H. P. Jakobsen , C. -W. H. Lee

Properties of entangled states based on nonorthogonal states are clarified. Especially, it is shown that they can have complete degree of entanglement.

Quantum Physics · Physics 2007-05-23 Osamu Hirota , Masahide Sasaki

Through the generalization of Khinchin's classical axiomatic foundation, a basis is developed for nonadditive information theory. The classical nonadditive conditional entropy indexed by the positive parameter q is introduced and then…

Quantum Physics · Physics 2009-11-07 Sumiyoshi Abe