The Maximal Cardinality of Quantum Latin Squares and Quantum Latin Cubes
Yuyuan Zhang, Yiwen Zhang, Mingzhen Lv +1 more
ABSTRACT In this paper, by extending the classical singular direct product construction to the quantum setting we resolve the existence problem for quantum Latin squares with maximal cardinality except for 11 possible exceptions. We also prove that there exists a quantum Latin cube of order with maximal cardinality for all positive integers , except when is a prime or , where are prime numbers and .
Journal of Combinatorial Designs•Dec 15, 2025•1 citation