Saturating the one-axis twisting quantum Cramér-Rao bound with a total spin readout
We show that the lowest quantum Cramér-Rao bound achievable in interferometry with a one-axis twisted spin coherent state is saturated by the asymptotic method of moments error of a protocol that uses one call to the one-axis twisting, one call to time-reversed one-axis twisting, and a final total s...
Main Authors: | T J Volkoff, Michael J Martin |
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Format: | Article |
Language: | English |
Published: |
IOP Publishing
2024-01-01
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Series: | Journal of Physics Communications |
Subjects: | |
Online Access: | https://doi.org/10.1088/2399-6528/ad1dc8 |
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