Alexander McCaskey
Oak Ridge National Laboratory
64 Papers
99 Citations
Alexander McCaskey is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Quantum computer & Computer science. The author has an hindex of 15, co-authored 59 publications. Previous affiliations of Alexander McCaskey include Virginia Tech.
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Papers
Quantum-classical computation of Schwinger model dynamics using quantum computers
Natalie Klco,Eugene F. Dumitrescu,Alexander McCaskey,T. D. Morris,Raphael C. Pooser,Mikel Sanz,Enrique Solano,Enrique Solano,Pavel Lougovski,Martin J. Savage +9 more
TL;DR: In this paper, a quantum-classical algorithm was proposed to study the dynamics of the two-spatial-site Schwinger model on IBM's quantum computers using rotational symmetries, total charge, and parity.
509
Cloud Quantum Computing of an Atomic Nucleus
Eugene F. Dumitrescu,Alexander McCaskey,Gaute Hagen,Gaute Hagen,Gustav R. Jansen,Gustav R. Jansen,T. D. Morris,T. D. Morris,Thomas Papenbrock,Thomas Papenbrock,Raphael C. Pooser,Raphael C. Pooser,D. J. Dean,Pavel Lougovski +13 more
TL;DR: This work designs a low-depth version of the unitary coupled-cluster ansatz, uses the variational quantum eigensolver algorithm, and compute the binding energy to within a few percent of the deuteron binding energy.
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Quantum chemistry as a benchmark for near-term quantum computers
Alexander McCaskey,Zachary P. Parks,Jacek Jakowski,Shirley Moore,T. D. Morris,Travis S. Humble,Raphael C. Pooser +6 more
TL;DR: It is demonstrated that for specific benchmark settings and a selected range of problems, the accuracy metric can reach chemical accuracy when computing over the cloud on certain quantum computers.
Quantum Annealing for Prime Factorization
TL;DR: A framework to convert an arbitrary integer factorization problem to an executable Ising model by first writing it as an optimization function then transforming the k-bit coupling (k ≥ 3) terms to quadratic terms using ancillary variables is developed.
XACC: a system-level software infrastructure for heterogeneous quantum–classical computing*
Alexander McCaskey,Dmitry I. Lyakh,Dmitry I. Lyakh,Eugene F. Dumitrescu,Sarah Powers,Travis S. Humble +5 more
- 04 Feb 2020
TL;DR: XACC as discussed by the authors is a system-level software infrastructure for quantum-classical computing that promotes a service-oriented architecture to expose interfaces for core quantum programming, compilation, and execution tasks.
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