Title:
Quantum sub-phase sensitivity of a Mach–Zehnder interferometer with the superposition of Schrödinger's cat-like state with vacuum state as an input under product detection scheme

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dc.contributor.authorGaurav Shukla
dc.contributor.authorDhiraj Yadav
dc.contributor.authorPriyanka Sharma
dc.contributor.authorAnand Kumar
dc.contributor.authorDevendra Kumar Mishra
dc.date.accessioned2026-02-09T04:34:15Z
dc.date.issued2024
dc.description.abstractWe study the phase sensitivity of a Mach–Zehnder interferometer (MZI) with product detection (PD) scheme by using the superposition of Schrödinger's cat-like state with the vacuum state (SCVS) and the coherent state as the inputs. We compare the results derived from PD with the parity detection scheme's results. We found that PD performs better than parity detection and approaches the single parameter quantum Cramér-Rao bound in some cases. Therefore, we expect that SCVS may play as an alternative quantum resource with PD for the improvement in the phase sensitivity of an MZI having potential application in quantum metrology and quantum sensing. © 2023
dc.identifier.doi10.1016/j.physo.2023.100200
dc.identifier.issn26660326
dc.identifier.urihttps://doi.org/10.1016/j.physo.2023.100200
dc.identifier.urihttps://dl.bhu.ac.in/bhuir/handle/123456789/48563
dc.publisherElsevier B.V.
dc.subjectParity detection
dc.subjectPhase sensitivity
dc.subjectProduct detection
dc.subjectQuantum metrology
dc.titleQuantum sub-phase sensitivity of a Mach–Zehnder interferometer with the superposition of Schrödinger's cat-like state with vacuum state as an input under product detection scheme
dc.typePublication
dspace.entity.typeArticle

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