Extending the computational reach of a superconducting qutrit processor
Quantum computing with qudits is an emerging approach that exploits a larger, more
connected computational space, providing advantages for many applications, including …
connected computational space, providing advantages for many applications, including …
Demonstration of a quantum-classical coprocessing protocol for simulating nuclear reactions
Quantum computers hold great promise for exact simulations of nuclear dynamical
processes (eg, scattering and reactions), which are paramount to the study of nuclear matter …
processes (eg, scattering and reactions), which are paramount to the study of nuclear matter …
A quantum-classical co-processing protocol towards simulating nuclear reactions on contemporary quantum hardware
Quantum computers hold great promise for arriving at exact simulations of nuclear
dynamical processes (eg, scattering and reactions) that are paramount to the study of …
dynamical processes (eg, scattering and reactions) that are paramount to the study of …
Synergetic quantum error mitigation by randomized compiling and zero-noise extrapolation for the variational quantum eigensolver
We propose a quantum error mitigation strategy for the variational quantum eigensolver
(VQE) algorithm. We find, via numerical simulation, that very small amounts of coherent …
(VQE) algorithm. We find, via numerical simulation, that very small amounts of coherent …
Quantum computation of frequency-domain molecular response properties using a three-qubit iToffoli gate
The quantum computation of molecular response properties on near-term quantum
hardware is a topic of substantial interest. Computing these properties directly in the …
hardware is a topic of substantial interest. Computing these properties directly in the …
Applying the noiseless extrapolation error mitigation protocol to calculate real-time quantum field theory scattering phase shifts
Real-time scattering calculations on a noisy intermediate scale quantum (NISQ) quantum
computer are disrupted by errors that accumulate throughout the circuits. To improve the …
computer are disrupted by errors that accumulate throughout the circuits. To improve the …
Pauli transfer matrices
Analysis of quantum processes, especially in the context of noise, errors, and decoherence
is essential for the improvement of quantum devices. An intuitive representation of those …
is essential for the improvement of quantum devices. An intuitive representation of those …
Combinatorial optimization with quantum imaginary time evolution
We use quantum imaginary-time evolution (QITE) to solve polynomial unconstrained binary
optimization (PUBO) problems. We show that a linear ansatz yields good results for a wide …
optimization (PUBO) problems. We show that a linear ansatz yields good results for a wide …
Restricted Randomized Benchmarking with Universal Gates of Fixed Sequence Length
The standard randomized benchmarking protocol requires access to often complex
operations that are not always directly accessible. Compiler optimization does not always …
operations that are not always directly accessible. Compiler optimization does not always …
Simplifying errors by symmetry and randomisation
We present a set of methods to generate less complex error channels by quantum circuit
parallelisation. The resulting errors are simplified as a consequence of their symmetrisation …
parallelisation. The resulting errors are simplified as a consequence of their symmetrisation …