Cavity-Mediated Coherent Coupling between Distant Quantum Dots
Abstract
Scalable architectures for quantum information technologies require one to selectively couple long-distance qubits while suppressing environmental noise and cross talk. In semiconductor materials, the coherent coupling of a single spin on a quantum dot to a cavity hosting fermionic modes offers a new solution to this technological challenge. Here, we demonstrate coherent coupling between two spatially separated quantum dots using an electronic cavity design that takes advantage of whispering-gallery modes in a two-dimensional electron gas. The cavity-mediated, long-distance coupling effectively minimizes undesirable direct cross talk between the dots and defines a scalable architecture for all-electronic semiconductor-based quantum information processing.
- Publication:
-
Physical Review Letters
- Pub Date:
- June 2018
- DOI:
- 10.1103/PhysRevLett.120.236801
- arXiv:
- arXiv:1712.08569
- Bibcode:
- 2018PhRvL.120w6801N
- Keywords:
-
- Condensed Matter - Mesoscale and Nanoscale Physics;
- Quantum Physics
- E-Print:
- 9 pages, 8 figures, draft plus supplementary, comments are welcome