3 papers
quant-ph2026
The Finite Geometry of Breaking Quantum Secrets
Péter Lévay, Metod Saniga
Using a finite geometric framework for studying the pentagon and heptagon codes we show that the concepts of quantum secret sharing and contextuality can be studied in a nice and u…
quant-ph2025
A thermofield-double model of Uhlmann anholonomy
Péter Lévay, Csaba Velich
A simple parametrized family of quantum systems consisting of two entangled subsystems, dubbed left and right ones, both of them featuring N qubits is considered in the thermofield…
quant-ph2024
Exploiting Finite Geometries for Better Quantum Advantages in Mermin-Like Games
Colm Kelleher, Frédéric Holweck, Péter Lévay
Quantum games embody non-intuitive consequences of quantum phenomena, such as entanglement and contextuality. The Mermin-Peres game is a simple example, demonstrating how two playe…