Phase sensitivity for an SU(1,1) interferometer via multiphoton subtraction at the output port

• URL: http://arxiv.org/abs/2410.17612v1
• Date: Wed, 23 Oct 2024 07:08:47 GMT
• Title: Phase sensitivity for an SU(1,1) interferometer via multiphoton subtraction at the output port
• Authors: Tao Jiang, Zekun Zhao, Qingqian Kang, Teng Zhao, Nanrun Zhou, Cunjin Liu, Liyun Hu,
• Abstract summary: Internal photon losses within the SU(1,1) interferometer have a more significant impact on the phase sensitivity compared to external photon losses. Even under conditions of severe photon loss, the multiphoton subtraction operations can enable the phase sensitivity to surpass the standard quantum limit.
• Score: 7.200889618563686
• License:
• Abstract: In the field of quantum precision measurement, enhancing phase sensitivity is crucial for various applications, including quantum metrology and quantum sensing technologies. We theoretically investigate the improvement in phase sensitivity and quantum Fisher information achieved through multiphoton subtraction operations at the output port of an SU(1,1) interferometer under conditions of photon loss. We use vacuum and coherent states as the inputs and detect the outputs by intensity detection. The results indicate that internal photon losses within the SU(1,1) interferometer have a more significant impact on the phase sensitivity compared to external photon losses. Moreover, increasing the number of photon subtractions m effectively enhances both the phase sensitivity and the quantum Fisher information. Notably, even under conditions of severe photon loss, the multiphoton subtraction operations can enable the phase sensitivity to surpass the standard quantum limit, approaching both the Heisenberg limit and the quantum Cram\'er-Rao bound. This study provides a new theoretical basis for enhancing the phase sensitivity in the SU(1,1) interferometer.

Related papers

• Demonstration of Lossy Linear Transformations and Two-Photon Interference on a Photonic Chip [78.1768579844556]
  We show that engineered loss, using an auxiliary waveguide, allows one to invert the spatial statistics from bunching to antibunching. We study the photon statistics within the loss-emulating channel and observe photon coincidences, which may provide insights into the design of quantum photonic integrated chips.
  arXiv  Detail & Related papers  (2024-04-09T06:45:46Z)
• Phase estimation via number-conserving operation inside the SU(1,1) interferometer [0.0]
  We propose a theoretical scheme to improve the precision of phase measurement using homodyne detection. We analyze the effects of number-conserving operations on the phase sensitivity, the quantum Fisher information, and the quantum Cramer-Rao bound under both ideal and photon losses scenarios.
  arXiv  Detail & Related papers  (2024-03-29T11:04:38Z)
• All-optical modulation with single-photons using electron avalanche [69.65384453064829]
  We demonstrate all-optical modulation using a beam with single-photon intensity. Our approach opens up the possibility of terahertz-speed optical switching at the single-photon level.
  arXiv  Detail & Related papers  (2023-12-18T20:14:15Z)
• Phase estimation via multi-photon subtraction inside the SU(1,1) interferometer [0.0]
  The effects of multi-photon subtraction on phase sensitivity, quantum Fisher information, and quantum Cramer-Rao bound are analyzed. Our proposed scheme represents a valuable method for achieving quantum precision measurements.
  arXiv  Detail & Related papers  (2023-11-24T17:05:28Z)
• Simultaneous quantum estimation of phase and indistinguishability in a two photon interferometer [0.0]
  We derive the quantum Fisher information matrix associated to the simultaneous estimation of an interferometric phase. We perform an experiment based on a pair of photons with an unknown degree of indistinguishability entering a two-port interferometer.
  arXiv  Detail & Related papers  (2023-03-27T18:56:03Z)
• Phase estimation of Mach-Zehnder interferometer via Laguerre excitation squeezed state [7.488329113191202]
  We introduce a kind of non-Gaussian state, Laguerre squeezed excitation state as input of traditional Mach-Zehnder interferometer. We consider the effects of both internal and external losses on phase estimation by using quantum Fisher information and parity detection.
  arXiv  Detail & Related papers  (2022-09-01T10:14:43Z)
• Tunable photon-mediated interactions between spin-1 systems [68.8204255655161]
  We show how to harness multi-level emitters with several optical transitions to engineer photon-mediated interactions between effective spin-1 systems. Our results expand the quantum simulation toolbox available in cavity QED and quantum nanophotonic setups.
  arXiv  Detail & Related papers  (2022-06-03T14:52:34Z)
• Silicon nitride waveguides with intrinsic single-photon emitters for integrated quantum photonics [97.5153823429076]
  We show the first successful coupling of photons from intrinsic single-photon emitters in SiN to monolithically integrated waveguides made of the same material. Results pave the way toward the realization of scalable, technology-ready quantum photonic integrated circuitry.
  arXiv  Detail & Related papers  (2022-05-17T16:51:29Z)
• Improvement of phase sensitivity in SU(1,1) interferometer via a Kerr nonlinear [7.6668670515469515]
  We investigate the realistic effects of photon losses on phase sensitivity and quantum Fisher information. The Kerr nonlinear case can not only enhance the phase sensitivity and quantum Fisher information, but also significantly suppress the photon losses.
  arXiv  Detail & Related papers  (2021-03-14T04:56:13Z)
• Waveguide quantum electrodynamics: collective radiance and photon-photon correlations [151.77380156599398]
  Quantum electrodynamics deals with the interaction of photons propagating in a waveguide with localized quantum emitters. We focus on guided photons and ordered arrays, leading to super- and sub-radiant states, bound photon states and quantum correlations with promising quantum information applications.
  arXiv  Detail & Related papers  (2021-03-11T17:49:52Z)
• Spectrally multimode integrated SU(1,1) interferometer [50.591267188664666]
  The presented interferometer includes a polarization converter between two photon sources and utilizes a continuous-wave (CW) pump. We show that this configuration results in almost perfect destructive interference at the output and supersensitivity regions below the classical limit.
  arXiv  Detail & Related papers  (2020-12-07T14:42:54Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.