Precision Enhancement in Spatial Measurement by Introducing Squeezed Light into Weak Value Amplification

• URL: http://arxiv.org/abs/2311.16622v3
• Date: Mon, 09 Dec 2024 08:52:47 GMT
• Title: Precision Enhancement in Spatial Measurement by Introducing Squeezed Light into Weak Value Amplification
• Authors: Chaoxia Zhang, Yongchao Chen, Gang Chen, Hengxin Sun, Jing Zhang, Kui Liu, Rongguo Yang, Jiangrui Gao,
• Abstract summary: It is the first time to experimentally realize high-precision optical spatial measurement beyond the shot noise limit by using squeezing-assisted WVA. A SNR improvement of 2dB, i.e., 1.3 time precision enhancement, can be achieved, by using a 2dB squeezed beam injection and 2.6% postselection probability.
• Score: 8.238656454998022
• License:
• Abstract: The precision enhancement is demonstrated in an optical spatial measurement based on weak value amplification (WVA) system and split-like detection, by injecting a TEM$_{10}$ squeezed vacuum beam. It is the first time to experimentally realize high-precision optical spatial measurement beyond the shot noise limit by using squeezing-assisted WVA. Based on the WVA technique, which can amplify the signal by increasing the number of photons that injected into the interferometer, squeezed beam injection can reduce the noise level and can further improve the signal-to-noise ratio(SNR). As a result, a SNR improvement of 2dB, i.e., 1.3 time precision enhancement, can be achieved, by using a 2dB squeezed beam injection and 2.6\% postselection probability in WVA process. Our work provides an effective method to accomplish higher precision in quantum spatial measurement, which has potential applications in gravitational wave interferometer calibration, super-resolution quantum imaging, etc.

Related papers

• Spatial super-resolution in nanosensing with blinking emitters [79.16635054977068]
  We propose a method of spatial resolution enhancement in metrology with blinking fluorescent nanosensors. We believe that blinking fluorescent sensing agents being complemented with the developed image analysis technique could be utilized routinely in the life science sector.
  arXiv  Detail & Related papers  (2024-02-27T10:38:05Z)
• Efficient OPA tomography of non-Gaussian states of light [0.0]
  An optical parametric amplifier (OPA) allows us to reconstruct the quadrature distribution of an unknown state directly from the measured intensity distribution. We propose adding a controllable displacement to the standard scheme, obtaining an improved method applicable even to asymmetric and non-Gaussian states.
  arXiv  Detail & Related papers  (2023-10-28T20:58:53Z)
• High-dimensional quantum correlation measurements with an adaptively gated hybrid single-photon camera [58.720142291102135]
  We propose an adaptively-gated hybrid intensified camera (HIC) that combines a high spatial resolution sensor and a high temporal resolution detector. With a spatial resolution of nearly 9 megapixels and nanosecond temporal resolution, this system allows for the realization of previously infeasible quantum optics experiments.
  arXiv  Detail & Related papers  (2023-05-25T16:59:27Z)
• Entanglement-enhanced dual-comb spectroscopy [0.7340017786387767]
  Dual-comb interferometry harnesses the interference of two laser frequency combs to provide unprecedented capability in spectroscopy applications. We propose an entanglement-enhanced dual-comb spectroscopy protocol that leverages quantum resources to significantly improve the signal-to-noise ratio performance. Our results show significant quantum advantages in the uW to mW power range, making this technique particularly attractive for biological and chemical sensing applications.
  arXiv  Detail & Related papers  (2023-04-04T03:57:53Z)
• Realization of higher Precision in Interferometric-weak-value-based Small-tilt Measurement [5.105266061680764]
  We experimentally realize a great precision enhancement in the small tilt measurement by using a Sagnac interferometer and balanced homodyne detection (BHD) of high-order optical modes. Smaller minimum measurable tilt (MMT) and higher signal-to-noise ratio (SNR) can be obtained by using BHD, compared with the split detection (SD)
  arXiv  Detail & Related papers  (2022-10-26T08:16:23Z)
• On-chip quantum information processing with distinguishable photons [55.41644538483948]
  Multi-photon interference is at the heart of photonic quantum technologies. Here, we experimentally demonstrate that detection can be implemented with a temporal resolution sufficient to interfere photons detuned on the scales necessary for cavity-based integrated photon sources. We show how time-resolved detection of non-ideal photons can be used to improve the fidelity of an entangling operation and to mitigate the reduction of computational complexity in boson sampling experiments.
  arXiv  Detail & Related papers  (2022-10-14T18:16:49Z)
• Quantum-enhanced absorption spectroscopy with bright squeezed frequency combs [91.3755431537592]
  We propose a strategy combining the advantages of frequency modulation spectroscopy with the reduced noise properties accessible by squeezing the probe state. A homodyne detection scheme allows the simultaneous measurement of the absorption at multiple frequencies. We predict a significant enhancement of the signal-to-noise ratio that scales exponentially with the squeezing factor.
  arXiv  Detail & Related papers  (2022-09-30T17:57:05Z)
• SAR Despeckling using a Denoising Diffusion Probabilistic Model [52.25981472415249]
  The presence of speckle degrades the image quality and adversely affects the performance of SAR image understanding applications. We introduce SAR-DDPM, a denoising diffusion probabilistic model for SAR despeckling. The proposed method achieves significant improvements in both quantitative and qualitative results over the state-of-the-art despeckling methods.
  arXiv  Detail & Related papers  (2022-06-09T14:00:26Z)
• Auto-correlative weak-value amplification under strong noise background [7.985795658443465]
  We investigate a modified weak measurement protocol with a temporal pointer. AWVA approach implements two simultaneous auto-correlative weak measurements. Simulation results show that the AWVA approach outperforms the standard WVA technique in the time domain.
  arXiv  Detail & Related papers  (2022-03-29T04:48:31Z)
• Investigation and comparison of measurement schemes in the low frequency biosensing regime using solid-state defect centers [58.720142291102135]
  Solid state defects in diamond make promising quantum sensors with high sensitivity andtemporal resolution. Inhomogeneous broadening and drive amplitude variations have differing impacts on the sensitivity depending on the sensing scheme used. We numerically investigate and compare the predicted sensitivity of schemes based on continuous-wave (CW) optically detected magnetic resonance (ODMR) spectroscopy, pi-pulse ODMR and Ramsey interferometry.
  arXiv  Detail & Related papers  (2021-09-27T13:05:23Z)
• Approaching quantum-limited metrology with imperfect detectors by using weak-value amplification [6.352093136350355]
  Weak value amplification (WVA) is a metrological protocol that amplifies ultra-small physical effects. Here, we experimentally demonstrate the unambiguous advantages of WVA that overcome practical limitations. The precision amplified by WVA is six times higher than that of conventional measurement.
  arXiv  Detail & Related papers  (2020-05-07T17:29:30Z)

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.