5 papers
Quantum Accreditation with Non-Clifford Two-qubit Gates
Andrew Jackson, Theodoros Kapourniotis, Animesh Datta
We develop a family of quantum accreditation protocols for quantum circuits with non-Clifford two-qubit gates. The latter includes families of gates such as the fSim and XY familie…
Plugging Leaks in Fault-Tolerant Quantum Computation and Verification
Theodoros Kapourniotis, Dominik Leichtle, Luka Music +1
With the advent of quantum cloud computing, the security of delegated quantum computation has become of utmost importance. While multiple statistically secure blind verification sc…
Cross-Platform Benchmarking of Near-Term Quantum Optimisation Algorithms
Kieran McDowall, Theodoros Kapourniotis, Christopher Oliver +2
Quantum computers show potential for achieving computational advantage over classical computers, with many candidate applications in combinatorial optimisation. We present an appli…
Resource-efficient Quantum Algorithms for Selected Hamiltonian Subspace Diagonalization
Vincent Graves, Manqoba Q. Hlatshwayo, Theodoros Kapourniotis +1
Quantum algorithms for selecting a subspace of Hamiltonians to diagonalize have emerged as a promising alternative to variational algorithms in the NISQ era. So far, such algorithm…
A Review and Collection of Metrics and Benchmarks for Quantum Computers: definitions, methodologies and software
Deep Lall, Abhishek Agarwal, Weixi Zhang +15
Quantum computers have the potential to provide an advantage over classical computers in a number of areas. Numerous metrics to benchmark the performance of quantum computers, rang…