Super sensitivity and super resolution with quantum teleportation
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Super sensitivity and super resolution with quantum teleportation. / Borregaard, J.; Gehring, T.; Neergaard-Nielsen, J. S.; Andersen, U. L.
I: npj Quantum Information, Bind 5, Nr. 1, 16, 2019.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Super sensitivity and super resolution with quantum teleportation
AU - Borregaard, J.
AU - Gehring, T.
AU - Neergaard-Nielsen, J. S.
AU - Andersen, U. L.
PY - 2019
Y1 - 2019
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85071925274&partnerID=8YFLogxK
U2 - 10.1038/s41534-019-0132-4
DO - 10.1038/s41534-019-0132-4
M3 - Journal article
AN - SCOPUS:85071925274
VL - 5
JO - npj Quantum Information
JF - npj Quantum Information
SN - 2056-6387
IS - 1
M1 - 16
ER -
ID: 229101110