Quantum sub-phase sensitivity of a Mach�Zehnder interferometer with the superposition of Schr�dinger's cat-like state with vacuum state as an input under product detection scheme

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dc.contributor.authorShukla G.
dc.contributor.authorYadav D.
dc.contributor.authorSharma P.
dc.contributor.authorKumar A.
dc.contributor.authorMishra D.K.
dc.date.accessioned2025-01-13T07:06:50Z
dc.date.available2025-01-13T07:06:50Z
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 Schr�dinger'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 Cram�r-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://dl.bhu.ac.in/ir/handle/123456789/2494
dc.language.isoen
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 Schr�dinger's cat-like state with vacuum state as an input under product detection scheme
dc.typeArticle
journal.titlePhysics Open
journalvolume.identifier.volume18

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