Journal article ยท Preprint article
Super sensitivity and super resolution with quantum teleportation
We propose a method for quantum enhanced phase estimation based on continuous variable (CV) quantum teleportation. The phase shift probed by a coherent state can be enhanced by repeatedly teleporting the state back to interact with the phase shift again using a supply of two-mode squeezed vacuum states.
In this way a sequential protocol exhibiting both super-resolution and super-sensitivity can be obtained due to the coherent addition of the phase shift. The protocol enables Heisenberg-limited sensitivity and super-resolution given sufficiently strong squeezing. The proposed method could be implemented with current or near-term technology of CV teleportation.
Language: | English |
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Publisher: | Nature Publishing Group UK |
Year: | 2019 |
Pages: | 5 |
ISSN: | 20566387 |
Types: | Journal article and Preprint article |
DOI: | 10.1038/s41534-019-0132-4 |
ORCIDs: | 0000-0003-2544-4073 , Gehring, Tobias , Neergaard-Nielsen, Jonas Schou and Andersen, Ulrik Lund |