Teleportation of Post-Selected Quantum States
- URL: http://arxiv.org/abs/2303.12456v4
- Date: Wed, 6 Mar 2024 10:43:58 GMT
- Title: Teleportation of Post-Selected Quantum States
- Authors: Daniel Collins
- Abstract summary: We show that it is possible to teleport a state which is also $itpost$-selected.
We also demonstrate pre and post-selected $itport$-based teleportation.
- Score: 1.2691047660244337
- License: http://creativecommons.org/licenses/by/4.0/
- 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.
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