Strong antibunching photons/photon pairs emission in two atoms cavity QED system with the Van der Waals interaction

• URL: http://arxiv.org/abs/2509.11585v1
• Date: Mon, 15 Sep 2025 05:05:43 GMT
• Title: Strong antibunching photons/photon pairs emission in two atoms cavity QED system with the Van der Waals interaction
• Authors: Zhouyang Yu, Jinping Xu, Chengjie Zhu, Zhengyang Bai, Yaping Yang,
• Abstract summary: Weinvestigate the generation of antibunching photons and photon pairs in a two-atom cavity QED system.<n>We show that the vdW interaction shifts the two-atom excited state, enabling the suppression of two-photon excitation.
• Score: 0.3534082637890406
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Weinvestigate the generation of antibunching photons and photon pairs in a two-atom cavity QED system leveraging interatomic van der Waals (vdW) interaction. We show that the vdW interaction shifts the two-atom excited state, enabling the suppression of two-photon excitation via destructive interference in a diamond configuration. This leads to antibunching photon emission with extremely high purity. Furthermore, by tuning the vdW interaction strength, the conditions for conventional and unconventional photon blockades can overlap, significantly enhancing single-photon emission. Conversely, at the antiblockade excitation frequency, quantum Monte Carlo simulations demonstrate the feasibility of generating antibunching photon pairs with a high purity and reasonable leaking rate by selecting appropriate driving field Rabi frequency and vdW interaction strength. These f indings on enhanced single/two-photon emission could lead to more efficient and brighter quantum light sources.

Related papers

• Collective Enhancement of Photon Blockade via Two-Photon Interactions [0.050188155804360805]
  Photon blockade is a key quantum optical effect in which the presence of one photon prevents the transmission of subsequent ones.<n>We show that when light and matter are coupled via a two-photon interaction, both single- and multi-photon blockade can benefit from a collective enhancement.
  arXiv  Detail & Related papers  (2025-11-14T17:26:34Z)
• Light-induced Pairing Instability of Ultrafast Electron Beams with Space Charge Interactions [4.9151602445945555]
  We introduce a photon-induced pairing mechanism that generates a net attractive force between two electrons.<n>We demonstrate that the effective interaction via single-photon exchange among PINEM electrons can suppress the inherent repulsive Coulomb interaction.<n>We also analyze the dynamics of the free-electron pairs in a bunched beam, underscoring the potential to facilitate a phase-coherent condensate of electrons.
  arXiv  Detail & Related papers  (2025-07-01T15:32:39Z)
• Tunable multiphoton bundles emission in a Kerr-type two-photon Jaynes-Cummings model [3.023091115036759]
  We present a study on manipulation and enhancement of multiphoton bundles emission under a moderate atom-cavity coupling. We show that the vacuum-Rabi splittings for the $n$th dressed states can be significantly enhanced by Kerr interaction.
  arXiv  Detail & Related papers  (2024-09-03T09:28:51Z)
• Strong coupling between a single photon and a photon pair [43.14346227009377]
  We report an experimental observation of the strong coupling between a single photon and a photon pair in an ultrastrongly-coupled circuit-QED system. Results represent a key step towards a new regime of quantum nonlinear optics.
  arXiv  Detail & Related papers  (2024-01-05T10:23:14Z)
• Hyper-entanglement between pulse modes and frequency bins [101.18253437732933]
  Hyper-entanglement between two or more photonic degrees of freedom (DOF) can enhance and enable new quantum protocols. We demonstrate the generation of photon pairs hyper-entangled between pulse modes and frequency bins.
  arXiv  Detail & Related papers  (2023-04-24T15:43:08Z)
• Strong single-photon to two-photon bundles emission in spin-1 Jaynes-Cummings model [3.230778132936486]
  We study the nonclassical photon emission in a single spin-1 atom coupled to an optical cavity with constructing a spin-1 Jaynes-Cummings model. The photon emission exhibit high-quality single photon and two-photon bundles properties with large photon numbers in the cavity and atom driven cases.
  arXiv  Detail & Related papers  (2022-09-27T13:52:41Z)
• Nonclassical correlated deterministic single-photon pairs for a trapped atom in bimodal cavities [0.0]
  Single photons and single-photon pairs, inherently nonclassical in their nature, are fundamental elements of quantum sciences and technologies. We propose to realize the nonclassical correlated deterministic photon pairs at the single-photon level for a single atom trapped in bimodal cavities.
  arXiv  Detail & Related papers  (2022-04-15T08:05:26Z)
• Single quantum emitters with spin ground states based on Cl bound excitons in ZnSe [55.41644538483948]
  We show a new type of single photon emitter with potential electron spin qubit based on Cl impurities inSe. Results suggest single Cl impurities are suitable as single photon source with potential photonic interface.
  arXiv  Detail & Related papers  (2022-03-11T04:29:21Z)
• Hot-Band Absorption Can Mimic Entangled Two-Photon Absorption [52.77024349608834]
  We investigated the fluorescence signals from Rhodamine 6G and LDS798 excited with a CW laser or an entangled photon pair source at 1060 nm. We observed a signal that originates from hot-band absorption (HBA), which is one-photon absorption from thermally-populated vibrational levels of the ground electronic state. For the typical conditions under which E2PEF measurements are performed, contributions from the HBA process could lead to a several orders-of-magnitude overestimate of the quantum advantage for excitation efficiency.
  arXiv  Detail & Related papers  (2021-11-10T21:17:47Z)
• Nonclassical Light from Exciton Interactions in a Two-Dimensional Quantum Mirror [0.4129225533930965]
  Excitons in a semiconductor monolayer form a collective resonance that can reflect resonant light with extraordinarily high efficiency. We show that finite-range interactions between excitons can lead to the generation of highly non-classical light.
  arXiv  Detail & Related papers  (2021-02-20T14:05:30Z)
• Quantum Borrmann effect for dissipation-immune photon-photon correlations [137.6408511310322]
  We study theoretically the second-order correlation function $g(2)(t)$ for photons transmitted through a periodic Bragg-spaced array of superconducting qubits, coupled to a waveguide. We demonstrate that photon bunching and anti-bunching persist much longer than both radiative and non-radiative lifetimes of a single qubit.
  arXiv  Detail & Related papers  (2020-09-29T14:37:04Z)
• Optical repumping of resonantly excited quantum emitters in hexagonal boron nitride [52.77024349608834]
  We present an optical co-excitation scheme which uses a weak non-resonant laser to reduce transitions to a dark state and amplify the photoluminescence from quantum emitters in hexagonal boron nitride (hBN) Our results are important for the deployment of atom-like defects in hBN as reliable building blocks for quantum photonic applications.
  arXiv  Detail & Related papers  (2020-09-11T10:15:22Z)

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.