Journal
PHYSICAL REVIEW LETTERS
Volume 110, Issue 24, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.240405
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Funding
- European Commission under the Integrating Project Q-ESSENCE
- Polish NCBiR under the ERA-NET CHIST-ERA project QUASAR
- Foundation for Polish Science under the TEAM Programme
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We demonstrate that the optimal states in lossy quantum interferometry may be efficiently simulated using low rank matrix product states. We argue that this should be expected in all realistic quantum metrological protocols with uncorrelated noise and is related to the elusive nature of the Heisenberg precision scaling in the asymptotic limit of a large number of probes.
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