Detecting the dimensionality of genuine multiparticle entanglement

G Cobucci, A Tavakoli - Science Advances, 2024 - science.org
Complex forms of quantum entanglement can arise in two qualitatively different ways: either
between many qubits or between two particles with higher-than-qubit dimension. While both …

Construction and the ergodicity properties of dual unitary quantum circuits

M Borsi, B Pozsgay - Physical Review B, 2022 - APS
We consider one-dimensional quantum circuits of the brickwork type, where the fundamental
quantum gate is dual unitary. Such models are solvable: the dynamical correlation functions …

Entanglement and quantum combinatorial designs

D Goyeneche, Z Raissi, S Di Martino, K Życzkowski - Physical Review A, 2018 - APS
We introduce several classes of quantum combinatorial designs, namely quantum Latin
squares, cubes, hypercubes, and a notion of orthogonality between them. A further …

A complete hierarchy for the pure state marginal problem in quantum mechanics

XD Yu, T Simnacher, N Wyderka, HC Nguyen… - Nature …, 2021 - nature.com
Clarifying the relation between the whole and its parts is crucial for many problems in
science. In quantum mechanics, this question manifests itself in the quantum marginal …

Quantum codes of maximal distance and highly entangled subspaces

F Huber, M Grassl - Quantum, 2020 - quantum-journal.org
We present new bounds on the existence of general quantum maximum distance separable
codes (QMDS): the length $ n $ of all QMDS codes with local dimension $ D $ and distance …

Multi-directional unitarity and maximal entanglement in spatially symmetric quantum states

M Mestyán, B Pozsgay, IM Wanless - SciPost Physics, 2024 - scipost.org
We consider dual unitary operators and their multi-leg generalizations that have appeared at
various places in the literature. These objects can be related to multi-party quantum states …

Entanglement classification and non--separability certification via Greenberger-Horne-Zeilinger-class fidelity

M Płodzień, J Chwedeńczuk, M Lewenstein… - Physical Review A, 2024 - APS
Many-body quantum systems can be characterized using the notions of k-separability and
entanglement depth. A quantum state is k-separable if it can be expressed as a mixture of k …

Construction of perfect tensors using biunimodular vectors

SA Rather - Quantum, 2024 - quantum-journal.org
Dual unitary gates are highly non-local two-qudit unitary gates that have been studied
extensively in quantum many-body physics and quantum information in the recent past. A …

Two and three-uniform states from irredundant orthogonal arrays

SQ Pang, X Zhang, X Lin, QJ Zhang - npj Quantum Information, 2019 - nature.com
A pure quantum state of N subsystems, each with d levels, is said to be k-uniform if all of its
reductions to k qudits are maximally mixed. Only the uniform states obtained from orthogonal …

Constructions of -uniform and absolutely maximally entangled states beyond maximum distance codes

Z Raissi, A Teixidó, C Gogolin, A Acín - Physical Review Research, 2020 - APS
Pure multipartite quantum states of n parties and local dimension q are called k-uniform if all
reductions to k parties are maximally mixed. These states are relevant for our understanding …