Back to Search
Start Over
Teleportation of Post-Selected Quantum States
- Source :
- Quantum 8, 1280 (2024)
- Publication Year :
- 2023
-
Abstract
- Teleportation allows Alice to send a pre-prepared quantum state to Bob using only pre-shared entanglement and classical communication. Here we show that it is possible to teleport a state which is also $\it{post}$-selected. Post-selection of a state $\Phi$ means that after Alice has finished her experiment she performs a measurement and only keeps runs of the experiment where the measurement outcome is $\Phi$. We also demonstrate pre and post-selected $\it{port}$-based teleportation. Finally we use these protocols to perform instantaneous non-local quantum computation on pre and post-selected systems, and significantly reduce the entanglement required to instantaneously measure an arbitrary non-local variable of spatially separated pre and post-selected systems.<br />Comment: 8 pages, 7 figures, updated version accepted for publication in Quantum
- Subjects :
- Quantum Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Quantum 8, 1280 (2024)
- Publication Type :
- Report
- Accession number :
- edsarx.2303.12456
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.22331/q-2024-03-14-1280