Quantum-Enhanced Fiber-Optic Gyroscopes Using Quadrature Squeezing and Continuous Variable Entanglement

• URL: http://arxiv.org/abs/2003.12545v1
• Date: Fri, 27 Mar 2020 17:26:09 GMT
• Title: Quantum-Enhanced Fiber-Optic Gyroscopes Using Quadrature Squeezing and Continuous Variable Entanglement
• Authors: Michael R Grace, Christos N. Gagatsos, Quntao Zhuang, Saikat Guha
• Abstract summary: We analyze a fiber-optic gyroscope design enhanced by the injection of quantum-optical squeezed vacuum into a fiber-based Sagnac interferometer. We find a constant enhancement factor that depends on the degree of squeezing introduced into the system but has diminishing returns beyond $10$-$15$ dB of squeezing.
• Score: 1.8237412774861765
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We analyze a fiber-optic gyroscope design enhanced by the injection of quantum-optical squeezed vacuum into a fiber-based Sagnac interferometer. In the presence of fiber loss, we compute the maximum attainable enhancement over a classical, laser-driven fiber-optic gyroscope in terms of the angular velocity estimate variance from a homodyne measurement. We find a constant enhancement factor that depends on the degree of squeezing introduced into the system but has diminishing returns beyond $10$--$15$ dB of squeezing. Under a realistic constraint of fixed total fiber length, we show that segmenting the available fiber into multiple Sagnac interferometers fed with a multi-mode-entangled squeezed vacuum, thereby establishing quantum entanglement across the individual interferometers, improves the rotation estimation variance by a factor of $e\approx2.718$.

Related papers

• Long-fiber Sagnac interferometers for twin field quantum key distribution networks [0.1749935196721634]
  A Sagnac loop structure can help overcome the major difficulty in the practical implementation of a twin field quantum key distribution network. We show that Rayleigh backscattering noise limits the signal-to-noise ratio for Sagnac systems containing long fibers and lossy photonic devices. Our results indicate the suitability of a Sagnac system for long-distance TFQKD networks, an important step towards the practical implementation of metropolitan quantum networks.
  arXiv  Detail & Related papers  (2024-07-10T19:34:21Z)
• Frequency tuning of a squeezed vacuum state using interferometric enhanced Bragg diffraction effect [1.3831703318753605]
  We experimentally demonstrate the optical frequency tuning of a squeezed vacuum state by using an acousto-optic modulator based bi-frequency interferometer. The systematic efficiency of the frequency tuning device is $91%$, which is only confined by the optical transmission efficiency of the acousto-optic modulators.
  arXiv  Detail & Related papers  (2024-01-11T01:53:52Z)
• A scalable narrow linewidth high power laser for barium ion optical qubit [0.0]
  As quantum computing endeavors scale up in qubit number, the demand for higher laser power with ultra-narrow linewidth becomes imperative. This study explores the effectiveness of Thulium-doped fiber amplifiers as a viable solution for addressing optical qubit transitions in trapped barium ion qubits. We demonstrate that by performing high-fidelity gates on the qubit while introducing minimal intensity noise, TDFAs do not significantly broaden the linewidth of the seed lasers.
  arXiv  Detail & Related papers  (2023-12-06T09:56:59Z)
• Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing [0.0]
  This work reports a fully guided setup for single-mode squeezing generation on integrated titanium-indiffused periodically poled nonlinear resonators. A continuous wave laser beam is delivered and the squeezed field is collected by single-mode fibers, where up to -3.17(9) dB of useful squeezing is available in fibers.
  arXiv  Detail & Related papers  (2023-06-07T20:27:45Z)
• Shaping Single Photons through Multimode Optical Fibers using Mechanical Perturbations [55.41644538483948]
  We show an all-fiber approach for controlling the shape of single photons and the spatial correlations between entangled photon pairs. We optimize these perturbations to localize the spatial distribution of a single photon or the spatial correlations of photon pairs in a single spot.
  arXiv  Detail & Related papers  (2023-06-04T07:33:39Z)
• Large Single-Phonon Optomechanical Coupling between Quantum Dots and Tightly Confined Surface Acoustic Waves in the Quantum Regime [1.7039969990048311]
  Small acoustic cavities with large zero-point motion are required for high efficiencies. We experimentally establish the feasibility of this platform through electro- and opto-mechanical characterization. We show conversion between microwave phonons and optical photons with sub-natural linewidths.
  arXiv  Detail & Related papers  (2022-05-03T02:53:01Z)
• Thermal tuning of a fiber-integrated Fabry-P\'erot cavity [53.869623568923515]
  We present the thermal tuning capability of an alignment-free fiber-integrated Fabry-P'erot cavity. We show the temperature tuning of the resonance wavelength of the cavity without any degradation of the finesse.
  arXiv  Detail & Related papers  (2021-05-25T10:42:03Z)
• Towards probing for hypercomplex quantum mechanics in a waveguide interferometer [55.41644538483948]
  We experimentally investigate the suitability of a multi-path waveguide interferometer with mechanical shutters for performing a test for hypercomplex quantum mechanics. We systematically analyse the influence of experimental imperfections that could lead to a false-positive test result.
  arXiv  Detail & Related papers  (2021-04-23T13:20:07Z)
• Characterization and stability measurement of deployed multicore fibers for quantum applications [50.591267188664666]
  We characterize for the first time, in terms of phase stability, multiple strands of a 4-core multicore fiber installed underground in the city of L'Aquila. We investigate the possibility of using such an infrastructure to implement quantum-enhanced schemes, such as high-dimensional quantum key distribution, quantum-based environmental sensors.
  arXiv  Detail & Related papers  (2021-03-11T18:24:59Z)
• 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)
• Tunable quantum photonics platform based on fiber-cavity enhanced single photon emission from two-dimensional hBN [52.915502553459724]
  In this work we present a hybrid system consisting of defect centers in few-layer hBN grown by chemical vapor deposition and a fiber-based Fabry-Perot cavity. We achieve very large cavity-assisted signal enhancement up to 50-fold and equally strong linewidth narrowing owing to cavity funneling. Our work marks an important milestone for the deployment of 2D materials coupled to fiber-based cavities in practical quantum technologies.
  arXiv  Detail & Related papers  (2020-06-23T14:20:46Z)

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.