Realizing acoustic qubit analogues with nonlinearly tunable phi-bits in externally driven coupled acoustic waveguides
| Logical phi-bits are nonlinear acoustic modes analogous to qubits and supported by an externally driven acoustic metastructure. A correspondence is established between the state of three correlated logical phi-bits represented in a low-dimensional linearly scaling physical space and their state representation as a complex vector in a high-dimensional exponentially scaling Hilbert space. We show the experimental implementation of a nontrivial three phi-bit unitary operation analogous to a quantum circuit. This three phi-bit gate operates in parallel on the components of the three phi-bit complex state vector. While this operation would be challenging to perform in one step on a quantum computer, by comparison, ours requires only a single physical action on the metastructure. |
[DOI/EE link]
@article{DRHLLC23,
author = {Pierre A. Deymier and Keith Runge and M. Arif Hasan and Trevor D. Lata and Joshua A. Levine and Philippe Cutillas},
day = {12},
ee = {https://doi.org/10.1038/s41598-023-27427-4},
journal = {Scientific Reports},
month = {1},
number = {1},
pages = {1--16},
publisher = {Nature Publishing Group},
title = {Realizing acoustic qubit analogues with nonlinearly tunable phi-bits in externally driven coupled acoustic waveguides},
volume = {13},
year = {2023}
}