1. Two-Way Quantum Time Transfer: A Method for Daytime Space-Earth Links
- Author
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Lafler, Randy, Eickhoff, Mark L., Newey, Scott C., Gonzalez, Yamil Nieves, Stoltenburg, Kurt E., Camacho, J. Frank, Harris, Mark A., Oesch, Denis W., Lewis, Adrian J., and Lanning, R. Nicholas
- Subjects
Quantum Physics - Abstract
High-precision remote clock synchronization is crucial for many classical and quantum network applications. Evaluating options for space-Earth links, we find that traditional solutions may not produce the desired synchronization for low Earth orbits and unnecessarily complicate quantum-networking architectures. Demonstrating an alternative, we use commercial off-the-shelf quantum-photon sources and detection equipment to synchronize two remote clocks across our freespace testbed utilizing a method called two-way quantum time transfer (QTT). We reach picosecond-scale timing precision under very lossy and noisy channel conditions representative of daytime space-Earth links and software-emulated satellite motion. This work demonstrates how QTT is potentially relevant for daytime space-Earth quantum networking and/or providing high-precision timing in GPS-denied environments., Comment: arXiv admin note: text overlap with arXiv:2211.00737
- Published
- 2023