3 papers
quant-ph2025
Unquestionable Bell theorem for interwoven frustrated down conversion processes
Paweł Cieśliński, Jan-Åke Larsson, Marcin Markiewicz +2
Interwoven frustrated parametric down conversion (PDC) processes produce interference effects based on path identity [Phys. Rev. Lett. 118, 080401 (2017)]. In this letter we show B…
quant-ph2024
Practical implementation of Toffoli-based qubit rotation
Christoffer Hindlycke, Jakov Krnic, Jan-Åke Larsson
The Toffoli gate is an important universal quantum gate, and will alongside the Clifford gates be available in future fault-tolerant quantum computing hardware. Many quantum algori…
quant-ph2024
Phase Coordinate Uncomputation in Quantum Recursive Fourier Sampling
Christoffer Hindlycke, Niklas Johansson, Jan-Åke Larsson
Recursive Fourier Sampling (RFS) was one of the earliest problems to demonstrate a quantum advantage, and is known to lie outside the Merlin--Arthur complexity class. This work con…