Deterministic Teleportation and Universal Computation Without Particle
Exchange
- URL: http://arxiv.org/abs/2009.05564v4
- Date: Tue, 21 Sep 2021 14:31:32 GMT
- Title: Deterministic Teleportation and Universal Computation Without Particle
Exchange
- Authors: Hatim Salih, Jonte R. Hance, Will McCutcheon, Terry Rudolph, and John
Rarity
- Abstract summary: Teleportation is a cornerstone of quantum technologies, and has played a key role in the development of quantum information theory.
Here, we apply a different aspect of quantumness to teleportation -- namely exchange-free computation at a distance.
The controlled-phase universal gate we propose, allows complete Bell detection among two remote parties, and is experimentally feasible.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Teleportation is a cornerstone of quantum technologies, and has played a key
role in the development of quantum information theory. Pushing the limits of
teleportation is therefore of particular importance. Here, we apply a different
aspect of quantumness to teleportation -- namely exchange-free computation at a
distance. The controlled-phase universal gate we propose, where no particles
are exchanged between control and target, allows complete Bell detection among
two remote parties, and is experimentally feasible. Our
teleportation-with-a-twist, which we extend to telecloning, then requires no
pre-shared entanglement nor classical communication between sender and
receiver, with the teleported state gradually appearing at its destination.
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