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Distributed phase sensing using two-mode squeezed states in a truncated SU(1,1) interferometer

Conference ·
 [1];  [1];  [1];  [1];  [1];  [1]
  1. ORNL
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We demonstrate distributed phase sensing with a truncated SU(1,1) interferometer through the measurement of a linear combination of two phases distributed between the two beams of a two-mode squeezed state. We theoretically analyze the sensitivity enhancement with respect to the corresponding classical strategy and experimentally demonstrate a 2 dB quantum noise reduction in the measurement of a linear combination of two phases.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1996706
Country of Publication:
United States
Language:
English

References (4)

Advances in photonic quantum sensing journal November 2018
Distributed Quantum Metrology with Linear Networks and Separable Inputs journal July 2018
Truncated Nonlinear Interferometry for Quantum-Enhanced Atomic Force Microscopy journal June 2020
Phase sensing beyond the standard quantum limit with a variation on the SU(1,1) interferometer journal January 2017

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