5 papers · 1 filter
Low Depth Phase Oracle Using a Parallel Piecewise Circuit
Zhu Sun, Gregory Boyd, Zhenyu Cai +7
We explore the important task of applying a phase to a computational basis state . The closely related task of rotating a target qubit by an angle…
Biased Estimator Channels for Classical Shadows
Zhenyu Cai, Adrian Chapman, Hamza Jnane +1
Extracting classical information from quantum systems is of fundamental importance, and classical shadows allow us to extract a large amount of information using relatively few mea…
Snakes on a Plane: mobile, low dimensional logical qubits on a 2D surface
Adam Siegel, Zhenyu Cai, Hamza Jnane +4
Recent demonstrations indicate that silicon-spin QPUs will be able to shuttle physical qubits rapidly and with high fidelity - a desirable feature for maximising logical connectivi…
Quantum Information Processing, Sensing and Communications: Their Myths, Realities and Futures
Lajos Hanzo, Zunaira Babar, Zhenyu Cai +6
The recent advances in quantum information processing, sensing and communications are surveyed with the objective of identifying the associated knowledge gaps and formulating a roa…
High-Dimensional Subspace Expansion Using Classical Shadows
Gregory Boyd, Bálint Koczor, Zhenyu Cai
We introduce a post-processing technique for classical shadow measurement data that enhances the precision of ground state estimation through high-dimensional subspace expansion; t…