Ternary Unitary Quantum Lattice Models and Circuits in Dimensions

RM Milbradt, L Scheller, C Aßmus, CB Mendl - Physical Review Letters, 2023 - APS
We extend the concept of dual unitary quantum gates introduced in Phys. Rev. Lett. 123,
210601 (2019) PRLTAO 0031-9007 10.1103/PhysRevLett. 123.210601 to quantum lattice …

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 …

Construction of perfect tensors using biunimodular vectors

SA Rather - arXiv preprint arXiv:2309.01504, 2023 - arxiv.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 …

Absolutely maximally entangled state equivalence and the construction of infinite quantum solutions to the problem of 36 officers of Euler

SA Rather, N Ramadas, V Kodiyalam… - Physical Review A, 2023 - APS
Ordering and classifying multipartite quantum states by their entanglement content remains
an open problem. One class of highly entangled states, useful in quantum information …

Tensor network decompositions for absolutely maximally entangled states

B Pozsgay, IM Wanless - Quantum, 2024 - quantum-journal.org
Absolutely maximally entangled (AME) states of $ k $ qudits (also known as perfect tensors)
are quantum states that have maximal entanglement for all possible bipartitions of the …

Multi-Unitary Complex Hadamard Matrices

W Bruzda, G Rajchel-Mieldzioć… - Open Systems & …, 2024 - World Scientific
We analyze the set of real and complex Hadamard matrices with additional symmetry
constrains. In particular, we link the problem of existence of maximally entangled multipartite …

[HTML][HTML] Two-unitary complex Hadamard matrices of order 36

W Bruzda, K Życzkowski - Special Matrices, 2024 - degruyter.com
A family of two-unitary complex Hadamard matrices (CHMs) of size 36 stemming from a
particular matrix is constructed. Every matrix in this orbit remains unitary after operations of …

Families of Perfect Tensors

R Geng - arXiv preprint arXiv:2211.15776, 2022 - arxiv.org
Perfect tensors are the tensors corresponding to the absolutely maximally entangled states,
a special type of quantum states of interest in quantum information theory. We establish a …

Quantum Version of Euler's Problem: A Geometric Perspective

K Życzkowski - Workshop on Geometric Methods in Physics, 2022 - Springer
The classical combinatorial problem of 36 officers has no solution, as there are no Graeco-
Latin squares of order six. The situation changes if one works in a quantum setup and allows …

[PDF][PDF] 36 splątanych oficerów z Petersburga

G RAJCHEL-MIELDZIOĆ, W BRUZDA… - deltami.edu.pl
Rozwa£ my konstrukcję znaną co najmniej od XIII wieku [3], kwadrat şaciński. Jest to tablica
o wymiarze d na d, wypeşniona d elementami (np. literami alfabetu şacińskiego) w ten …