Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:2404.02797

Quantum enhanced mechanical rotation sensing using wavefront photonic gears

Ofir Yesharim, Guy Tshuva, Ady Arie

Published Apr 3, 2024• 0 citations
arXivHTMLPDF

Abstract

Quantum metrology leverages quantum correlations for enhanced parameter estimation. Recently, structured light enabled increased resolution and sensitivity in quantum metrology systems. However, lossy and complex setups impacting photon flux, hinder true quantum advantage while using high dimensional structured light. We introduce a straightforward mechanical rotation quantum sensing mechanism, employing high-dimensional structured light and a compact high-flux (45,000 coincidence counts per second) N00N state source with N=2. The system utilizes two opposite spiral phase plates with topological charge of up to l=16 that convert mechanical rotation into wavefront phase shifts, and exhibit a 16-fold enhanced super-resolution and 25-fold enhanced sensitivity between different topological charges, while retaining the acquisition times and with negligible change in coincidence count. Furthermore, the high photon flux enables to detect mechanical angular acceleration in real-time. Our approach paves the way for highly sensitive quantum measurements, applicable to various interferometric schemes.

DOI
10.48550/arxiv.2404.02797

Related papers

Quantum enhanced mechanical rotation sensing using wavefront photonic gears

Ofir Yesharim, Guy Tshuva, Ady Arie

Quantum metrology leverages quantum correlations for enhanced parameter estimation. Recently, structured light enabled increased resolution and sensitivity in quantum metrology systems. However, lossy and complex setups impacting photon flux hinder true quantum advantage while using high dimensional structured light. We introduce a straightforward mechanical rotation quantum sensing mechanism, employing high-dimensional structured light and use it with a high-flux (45 000 coincidence counts per second) N00N state source with N = 2. The system utilizes two opposite spiral phase plates with topological charge of up to ℓ = 16 that converts mechanical rotation into wavefront phase shifts and exhibit a 16-fold enhanced super-resolution and 25-fold enhanced sensitivity between different topological charges, while retaining the acquisition times, and with negligible change in coincidence count. Furthermore, the high efficiency together with the high photon flux enables detection of mechanical angular acceleration in real-time. Our approach paves the way for highly sensitive quantum measurements, applicable to various interferometric schemes.

APL Photonics•Oct 1, 2024•9 citations

Quantum Enhanced Mechanical Rotation Sensing using Wavefront Photonic Gears

Ofir Yesharim, Guy Tshuva, Ady Arie

We demonstrate a compact and efficient rotation sensing mechanism that uses structured light and is enhanced by bright N00N states. It uses two opposite spiral phase plates that convert mechanical rotation to wavefront phase shifts.

•Jan 1, 2024•0 citations

Quantum-Enhanced Rotation Sensing and Interferometer Stabilization Using Wavefront Photonic Gears

Guy Tshuva, Ofir Yesharim, Ady Arie

We present a compact, efficient rotation sensor using structured light and bright N00N states. It employs opposite spiral phase plates to convert mechanical rotation into wavefront phase shifts, stabilized by quantum PID control.

Frontiers in Optics•Jan 1, 2024•0 citations

512‐Fold Rotational Super‐Resolution via Four‐Photon High‐Dimensional Structured Light (Laser Photonics Rev. 20(4)/2026)

Guy Tshuva, Ofir Yesharim, H. S. Eisenberg +1 more

Wavefront Photonic Gears The cover feature shows an artistic illustration of a four-photon quantum rotation sensor, in which high-dimensional structured entangled photons traverse a pair of spiral phase plates that convert tiny mechanical rotations into a phase shift, enabling rotation sensing with 512-fold improvement in resolution. See Research Article e02079 by Ady Arie and co-workers for more details.

Laser & Photonics Review•Feb 1, 2026•0 citations

Quantum sensing of the rotational Doppler effect

Ofir Yesharim, Guy Tshuva, Ady Arie

The rotational Doppler effect (RDE) is the angular analog of the linear Doppler effect, manifested by a frequency shift of a wave that is scattered from a rotating object. Here, we extend the sensing of this effect to the quantum optical regime. We demonstrate quantum Doppler shift sensing using a rotating photonic gear—a pair of spiral phase plates with opposite topological charge—in a two-photon N00N state interferometer. Continuous rotation of one plate produces time-varying coincidence fringes that reveal the rotational Doppler shift. The oscillation frequency scales with the topological charge ℓ of the spiral phase plate and the photon number N . Experiments with ℓ = 16 and ℓ = 128 confirm the predicted linear scaling while maintaining visibility, enabling quantum rotation sensing of slowly rotating objects.

Optics Continuum•Aug 11, 2026•0 citations

Photonic polarization gears for ultra-sensitive angular measurements

Vincenzo D’Ambrosio, Nicolò Spagnolo, Lorenzo Del Re +7 more

Quantum metrology bears a great promise in enhancing measurement precision, but is unlikely to become practical in the near future. Its concepts can nevertheless inspire classical or hybrid methods of immediate value. Here we demonstrate NOON-like photonic states of m quanta of angular momentum up to m=100, in a setup that acts as a ‘photonic gear’, converting, for each photon, a mechanical rotation of an angle θ into an amplified rotation of the optical polarization by mθ, corresponding to a ‘super-resolving’ Malus’ law. We show that this effect leads to single-photon angular measurements with the same precision of polarization-only quantum strategies with m photons, but robust to photon losses. Moreover, we combine the gear effect with the quantum enhancement due to entanglement, thus exploiting the advantages of both approaches. The high ‘gear ratio’ m boosts the current state of the art of optical non-contact angular measurements by almost two orders of magnitude. Beating the standard measurement limits is a goal of metrology, as it would allow for more precise estimation of physical quantities. Borrowing concepts from NOON-state quantum metrology, this work presents a single-photon scheme to measure rotation angles of light with super-resolution precision.

arXiv:1306.1606•Nature Communications•Sep 18, 2013•356 citations
Quantum metrology leverages quantum correlations for enhanced parameter estimation. Recently, structured light enabled increased resolution and sensitivity in quantum metrology systems. However, lossy and complex setups impacting photon flux, hinder true quantum advantage while using high dimensional structured light. We introduce a straightforward mechanical rotation quantum sensing mechanism, employing high-dimensional structured light and a compact high-flux (45,000 coincidence counts per second) N00N state source with N=2. The system utilizes two opposite spiral phase plates with topological charge of up to l=16 that convert mechanical rotation into wavefront phase shifts, and exhibit a 16-fold enhanced super-resolution and 25-fold enhanced sensitivity between different topological charges, while retaining the acquisition times and with negligible change in coincidence count. Furthermore, the high photon flux enables to detect mechanical angular acceleration in real-time. Our approach paves the way for highly sensitive quantum measurements, applicable to various interferometric schemes.
Quantum metrology leverages quantum correlations for enhanced parameter estimation. Recently, structured light enabled increased resolution and sensitivity in quantum metrology systems. However, lossy and complex setups impacting photon flux hinder true quantum advantage while using high dimensional structured light. We introduce a straightforward mechanical rotation quantum sensing mechanism, employing high-dimensional structured light and use it with a high-flux (45 000 coincidence counts per second) N00N state source with N = 2. The system utilizes two opposite spiral phase plates with topological charge of up to ℓ = 16 that converts mechanical rotation into wavefront phase shifts and exhibit a 16-fold enhanced super-resolution and 25-fold enhanced sensitivity between different topological charges, while retaining the acquisition times, and with negligible change in coincidence count. Furthermore, the high efficiency together with the high photon flux enables detection of mechanical angular acceleration in real-time. Our approach paves the way for highly sensitive quantum measurements, applicable to various interferometric schemes.
The rotational Doppler effect (RDE) is the angular analog of the linear Doppler effect, manifested by a frequency shift of a wave that is scattered from a rotating object. Here, we extend the sensing of this effect to the quantum optical regime. We demonstrate quantum Doppler shift sensing using a rotating photonic gear—a pair of spiral phase plates with opposite topological charge—in a two-photon N00N state interferometer. Continuous rotation of one plate produces time-varying coincidence fringes that reveal the rotational Doppler shift. The oscillation frequency scales with the topological charge ℓ of the spiral phase plate and the photon number N . Experiments with ℓ = 16 and ℓ = 128 confirm the predicted linear scaling while maintaining visibility, enabling quantum rotation sensing of slowly rotating objects.
Quantum metrology bears a great promise in enhancing measurement precision, but is unlikely to become practical in the near future. Its concepts can nevertheless inspire classical or hybrid methods of immediate value. Here we demonstrate NOON-like photonic states of m quanta of angular momentum up to m=100, in a setup that acts as a ‘photonic gear’, converting, for each photon, a mechanical rotation of an angle θ into an amplified rotation of the optical polarization by mθ, corresponding to a ‘super-resolving’ Malus’ law. We show that this effect leads to single-photon angular measurements with the same precision of polarization-only quantum strategies with m photons, but robust to photon losses. Moreover, we combine the gear effect with the quantum enhancement due to entanglement, thus exploiting the advantages of both approaches. The high ‘gear ratio’ m boosts the current state of the art of optical non-contact angular measurements by almost two orders of magnitude. Beating the standard measurement limits is a goal of metrology, as it would allow for more precise estimation of physical quantities. Borrowing concepts from NOON-state quantum metrology, this work presents a single-photon scheme to measure rotation angles of light with super-resolution precision.