| AVS 66th International Symposium & Exhibition | |
| Materials and Processes for Quantum Information, Computing and Science Focus Topic | Monday Sessions |
| Session QS+EM+MN+NS-MoM |
| Session: | High Coherence Qubits for Quantum Computing |
| Presenter: | Daniel Gunlycke, U.S. Naval Research Laboratory |
| Authors: | D. Gunlycke, U.S. Naval Research Laboratory S. Fischer, U.S. Naval Research Laboratory C.S. Hellberg, U.S. Naval Research Laboratory S. Policastro, U.S. Naval Research Laboratory S. Tafur, U.S. Naval Research Laboratory |
| Correspondent: | Click to Email |
Quantum entanglement is a natural phenomenon in quantum mechanics that has enormous significance in quantum information science, including quantum computing. It enters quantum states in quantum algorithms through the application of multi-qubit quantum logic operations such as the CNOT and Ising gates. While deliberate entanglement adds power and efficiency to algorithms, unintentional entanglement can be undesirable for a variety of reasons. Unintentional entanglement adds complexity, making the outcome of a given algorithm more difficult to understand, as well as more sensitive to errors. Furthermore, it can be an indication that an algorithm has not been optimized. If we could transfer entanglement from our algorithms into the bases that define our systems, then we could potentially reduce our algorithms, including the qubit requirement. Such algorithm reductions will be of outmost importance for resource-limited, noisy intermediate-scale quantum (NISQ) computers.
In this presentation, we will demonstrate how such a reduction could be achieved for the simulation of quantum systems using symmetry. In addition to reducing the needed resources, our quantum computer calculations show a significant improvement in accuracy.