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

Integrated Optics: Devices, Materials, and Technologies

Integrated squeezed light sources for photonic quantum computing

Philipp Lohmann, Daniel Wendland, Francesco Lenzini, Wolfram H. P. Pernice

Published Mar 19, 2025• 0 citations
Publisher
DOI
10.1117/12.3043061

Related papers

Integrated continuous-variable quantum light sources for quantum computing

Xuezhi Zhu, Siyu Ren, Yunyun Cao +1 more

Continuous-variable (CV) quantum light sources are the essential resource for quantum computation. Integrated CV quantum light sources offer a scalable pathway by harnessing low-loss nonlinear materials, versatile device architectures, and CMOS-compatible fabrication processes enabled by integrated photonics platforms. In this review, we briefly introduce recent progress on integrated CV quantum light sources, including single-mode squeezed states, two-mode squeezed states, and multimode entangled states. The key performance metrics of CV quantum light sources, such as the squeezing level, bandwidth, purity, and mode multiplexing, are analyzed. We highlight representative implementations of lithium niobate, silicon nitride, and silica platforms for CV quantum light sources and discuss major challenges for realizing integrated large-scale and fault-tolerant CV quantum computation.

Advanced Photonics•Nov 13, 2025•6 citations

Quantum photonic processors: towards quantum computing with light

Caterina Taballione, F. H. B. Somhorst

Emerging Applications in Silicon Photonics•Jan 11, 2023•0 citations

Integrated photonic quantum computing

Yanbing Young Zhang

Elsevier eBooks•Jan 1, 2024•1 citation

Possible Teleportation of Quantum States using Squeezed Sources and Photonic Integrated Circuits

Mobin Motaharifar, Hassan Kaatuzian, Mahmood Hasani

Emergent quantum technologies are opening up new horizons for researchers of different disciplines. One such promising technique is the teleportation of a quantum state. Theoretical physics and telecommunication are different fields for which quantum teleportation can be fruitful. Additionally, squeezed state of light is introduced in this paper as a tool for measurement accuracy improvement. Moreover, with the help of integrated Mach-Zehnder photonic cells and squeezed light source, we propose the use of a quantum photonic computation method (continuous variable quantum states) for the sake of quantum teleportation. We will further try to implement a quantum key distribution (QKD) algorithm based on this method and validate its feasibility as well.

Iranian International Conference on Microelectronics (IICM)•Oct 25, 2023•3 citations

Integrated squeezed light sources for two-mode entanglement in thin-film lithium niobate

Philipp Lohmann, Renato R. Domeneguetti, Daniel Wendland +6 more

Scalable generation of nonclassical light sources on an integrated platform is a key requirement for photonic quantum information processing. In particular, realizing multiple indistinguishable squeezed light sources on a single chip is an essential step toward continuous-variable quantum computing. Here, we demonstrate the fabrication of two indistinguishable and independently controllable optical parametric oscillators on a thin-film lithium niobate (TFLN) platform. The device design focuses on reproducibility, independent tunability, and compatibility with larger telecom-wavelength continuous-variable photonic circuits. We observe up to 0.5 dB of directly measured squeezing below the shot-noise level from each source. By interfering the two modes on a beam splitter, we generate an EPR-type two-mode squeezed state and verify continuous-variable entanglement through violation of the Duan-Simon inseparability criterion. This is the first demonstration of two independently tunable squeezed-light sources on a single TFLN chip and their use for generating continuous-variable entanglement.

quant-pharXiv:2605.26583•May 27, 2026•0 citations

Photonic Enabling Technologies for Quantum Devices

Stute, Andreas

•Jun 22, 2023•0 citations
Continuous-variable (CV) quantum light sources are the essential resource for quantum computation. Integrated CV quantum light sources offer a scalable pathway by harnessing low-loss nonlinear materials, versatile device architectures, and CMOS-compatible fabrication processes enabled by integrated photonics platforms. In this review, we briefly introduce recent progress on integrated CV quantum light sources, including single-mode squeezed states, two-mode squeezed states, and multimode entangled states. The key performance metrics of CV quantum light sources, such as the squeezing level, bandwidth, purity, and mode multiplexing, are analyzed. We highlight representative implementations of lithium niobate, silicon nitride, and silica platforms for CV quantum light sources and discuss major challenges for realizing integrated large-scale and fault-tolerant CV quantum computation.
Emergent quantum technologies are opening up new horizons for researchers of different disciplines. One such promising technique is the teleportation of a quantum state. Theoretical physics and telecommunication are different fields for which quantum teleportation can be fruitful. Additionally, squeezed state of light is introduced in this paper as a tool for measurement accuracy improvement. Moreover, with the help of integrated Mach-Zehnder photonic cells and squeezed light source, we propose the use of a quantum photonic computation method (continuous variable quantum states) for the sake of quantum teleportation. We will further try to implement a quantum key distribution (QKD) algorithm based on this method and validate its feasibility as well.
Scalable generation of nonclassical light sources on an integrated platform is a key requirement for photonic quantum information processing. In particular, realizing multiple indistinguishable squeezed light sources on a single chip is an essential step toward continuous-variable quantum computing. Here, we demonstrate the fabrication of two indistinguishable and independently controllable optical parametric oscillators on a thin-film lithium niobate (TFLN) platform. The device design focuses on reproducibility, independent tunability, and compatibility with larger telecom-wavelength continuous-variable photonic circuits. We observe up to 0.5 dB of directly measured squeezing below the shot-noise level from each source. By interfering the two modes on a beam splitter, we generate an EPR-type two-mode squeezed state and verify continuous-variable entanglement through violation of the Duan-Simon inseparability criterion. This is the first demonstration of two independently tunable squeezed-light sources on a single TFLN chip and their use for generating continuous-variable entanglement.