Simultaneous estimation of three parameters with Heisenberg scaling sensitivity in a two-channel optical network
Abstract This work presents a quantum sensing interferometric scheme for the simultaneous estimation of multiple parameters at the ultimate quantum scaling precision in a two-mode optical network. This scheme is experimentally feasible because it employs input Gaussian states such as squeezed and coherent states and a relatively low number of experimental runs. We focus on the precise and simultaneous measurement of two unknown phase shifts and an unknown beam splitter reflectivity, achieving Heisenberg scaling sensitivity in all three parameters without any constraints on the parameter values.
Authors
- Danilo Triggiani (ORCID: https://orcid.org/0000-0001-8851-6391)
- Paolo Facchi (ORCID: https://orcid.org/0000-0001-9152-6515)
- Vincenzo Tamma (ORCID: https://orcid.org/0000-0002-1963-3057)
- Atmadev Rai (ORCID: https://orcid.org/0000-0001-9458-6409)
Institutions
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari (IT)
- University of Bari Aldo Moro (IT)
- University of Portsmouth (GB)
- Polytechnic University of Bari (IT)
Publication Details
- Journal
- The European Physical Journal Plus
- Published
- 2025-09-09
- DOI
- https://doi.org/10.1140/epjp/s13360-025-06805-z
- Citations
- 1
- Primary Topic
- Quantum Information and Cryptography
- Type
- article
- Field-Weighted Citation Impact
- 2.48
Funders
- Istituto Nazionale di Alta Matematica "Francesco Severi"
- Dipartimenti di Eccellenza
- Agenzia Spaziale Italiana
- Istituto Nazionale di Fisica Nucleare
- Gruppo Nazionale per la Fisica Matematica