Large-scale array of squeezed light and synchronization using atomic vapor

• URL: http://arxiv.org/abs/2605.28316v1
• Date: Wed, 27 May 2026 11:16:34 GMT
• Title: Large-scale array of squeezed light and synchronization using atomic vapor
• Abstract summary: Quantum light sources such as squeezed light are essential for quantum information science and technologies.<n>This work provides a pathway towards scalable high-performance quantum light sources for applications in precision measurement, quantum imaging and quantum information processing.
• Score: 5.1311755566103585
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum light sources such as squeezed light are essential for quantum information science and technologies, but the scalable production of multiple beams of them remains a challenge. Here,we experimentally demonstrate a novel approach to the generation of a large spatial array of polarization-squeezed light beams via atomic-coherence-enhanced nonlinear optical processes using a single atomic vapor cell. Unlike schemes based on independent squeezing generators, the squeezing dynamics of each channel here are governed by a common collective ground-state atomic coherence, produced by all input beams, homogenized by the thermal motion of the atoms, and protected against wall collisions by a paraffin coating. Consequently, the optical states of all channelsare coupled and regulated by each other via the moving atoms, leading to synchronization behavior.We realized a 30-beam array of polarization squeezed state with 2.03 dB of squeezing, experimentally verified the synchronization, and observed improved purity of the squeezed state as well as the system response to perturbations when the size of the array increases. This work provides a pathway towards scalable high-performance quantum light sources for applications in precision measurement, quantum imaging and quantum information processing.

Related papers

• Deterministic coupling of ultracold atomic lattice to a suspended photonic waveguide [0.0]
  deterministic coupling of an ultracold atomic lattice to light propagating in suspended on-chip photonic circuits.<n>These capabilities open avenues to address scalability challenges in neutral-atom quantum computers and simulators.<n>Beyond controllable quantum matter, the platform also enables in-situ imaging of evanescent fields of light and nanoscale structures.
  arXiv  Detail & Related papers  (2025-11-22T23:01:09Z)
• Nonclassical Driven-Dissipative Dynamics in Collective Quantum Optics [51.56484100374058]
  We study ensembles of interacting quantum emitters coherently driven by a laser field and coupled to photonic structures.<n>We find that off-resonant virtual states may gain population through dissipation, redefining their role in open systems.<n>Our models address challenges like inhomogeneous broadening and decoherence, demonstrating the feasibility of harnessing cooperative light-matter effects for quantum technologies.
  arXiv  Detail & Related papers  (2025-09-12T20:01:55Z)
• Collection of fluorescence from an ion using trap-integrated photonics [0.0]
  Spontaneously emitted photons are entangled with the electronic and nuclear degrees of freedom of the emitting atom.<n>Current demonstrations rely on bulk photon-collection and manipulation optics that suffer from environment-induced phase instability.<n>We demonstrate a collection method that enables passive phase stability, straightforward photonic manipulation, and intrinsic stability.
  arXiv  Detail & Related papers  (2025-05-02T17:42:20Z)
• Generation and characterization of polarization-entangled states using quantum dot single-photon sources [0.0]
  Single-photon sources based on semiconductor quantum dots find several applications in quantum information processing. We implement this approach via a simple and compact design that generates entangled photon pairs in the polarization degree of freedom. Our source shows long-term stability and high quality of the generated entangled states, thus constituting a reliable building block for optical quantum technologies.
  arXiv  Detail & Related papers  (2023-08-04T16:07:12Z)
• Correlated steady states and Raman lasing in continuously pumped and probed atomic ensembles [68.8204255655161]
  We consider an ensemble of Alkali atoms that are continuously optically pumped and probed. Due to the collective scattering of photons at large optical depth, the steady state of atoms does not correspond to an uncorrelated tensor-product state. We find and characterize regimes of Raman lasing, akin to the model of a superradiant laser.
  arXiv  Detail & Related papers  (2022-05-10T06:54:54Z)
• Ultra-long photonic quantum walks via spin-orbit metasurfaces [52.77024349608834]
  We report ultra-long photonic quantum walks across several hundred optical modes, obtained by propagating a light beam through very few closely-stacked liquid-crystal metasurfaces. With this setup we engineer quantum walks up to 320 discrete steps, far beyond state-of-the-art experiments.
  arXiv  Detail & Related papers  (2022-03-28T19:37:08Z)
• Quantum single-photon control, storage, and entanglement generation with planar atomic arrays [0.0]
  We show how to achieve quantum control of an incident single-photon pulse by engineering a two-dimensional atomic array. Control is achieved by controlling classically or quantum mechanically the ac Stark shifts of the atomic levels. We illustrate the control by manipulating the phase, phase superposition, polarization, and direction of a transmitted or reflected photon.
  arXiv  Detail & Related papers  (2021-08-09T10:23:33Z)
• Position-controlled quantum emitters with reproducible emission wavelength in hexagonal boron nitride [45.39825093917047]
  Single photon emitters (SPEs) in low-dimensional layered materials have recently gained a large interest owing to the auspicious perspectives of integration and extreme miniaturization. Here, we evidence SPEs in high purity synthetic hexagonal boron nitride (hBN) that can be activated by an electron beam at chosen locations. Our findings constitute an essential step towards the realization of top-down integrated devices based on identical quantum emitters in 2D materials.
  arXiv  Detail & Related papers  (2020-11-24T17:20:19Z)
• Hyperentanglement in structured quantum light [50.591267188664666]
  Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protocols. Here, we demonstrate a functional source of high-dimensional, noise-resilient hyperentangled states encoded in time-frequency and vector-vortex structured modes. We generate highly entangled photon pairs at telecom wavelength that we characterise via two-photon interference and quantum state tomography, achieving near-unity visibilities and fidelities.
  arXiv  Detail & Related papers  (2020-06-02T18:00:04Z)
• Near-ideal spontaneous photon sources in silicon quantum photonics [55.41644538483948]
  Integrated photonics is a robust platform for quantum information processing. Sources of single photons that are highly indistinguishable and pure, that are either near-deterministic or heralded with high efficiency, have been elusive. Here, we demonstrate on-chip photon sources that simultaneously meet each of these requirements.
  arXiv  Detail & Related papers  (2020-05-19T16:46:44Z)

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.