4 papers
On Relationship Between Circuit Depth and Trainability of VQAs
Jan Michálek, Martin Friák, Petr Vašík
The training efficiency of Variational Quantum Algorithms (VQAs) is dictated by the geometry of their loss landscapes, which can be formally analysed by mapping these functions to…
Correlated States in Quantum Dot Clusters Coupled to a Common Superconductor
Martin Žonda, Jakub Rękas, Tobiáš Poláček +3
We study an effective model of regular quantum dot clusters coupled to a common superconductor. By applying a canonical transformation, we map the system onto a particle-number-con…
Efficient implementation of single particle Hamiltonians in exponentially reduced qubit space
Martin Plesch, Martin Friák, Ijaz Ahamed Mohammad
Current and near-term quantum hardware is constrained by limited qubit counts, circuit depth, and the high cost of repeated measurements. We address these challenges for solid stat…
Minimum measurements quantum protocol for band structure calculation
Michal Krejčí, Lucie Krejčí, Ijaz Ahamed Mohammad +2
Protocols for quantum measurement are an essential part of quantum computing. Measurements are no longer confined to the final step of computation but are increasingly embedded wit…