Lattice quantum electrodynamics of a molecular emitter in a topological gap

• URL: http://arxiv.org/abs/2607.20231v1
• Date: Wed, 22 Jul 2026 14:50:09 GMT
• Title: Lattice quantum electrodynamics of a molecular emitter in a topological gap
• Abstract summary: We introduce an optical lattice QED platform based on individual dibenzoterrylene molecules embedded in anthracene crystals.<n>We observe emitter-photon bound states formed when the optical transition of a single molecule is tuned to the band gap of a Su-Schrieffer-Heeger cavity lattice.
• Score: 27.457087137824697
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Engineering the photonic environment using lattices of coupled resonators, which we refer to as lattice quantum electrodynamics (QED), provides a route to control both the spontaneous emission of individual quantum emitters and the photon-mediated interactions between them. Here we introduce an optical lattice QED platform based on individual dibenzoterrylene (DBT) molecules embedded in anthracene crystals and coupled to lattices of open optical microcavities. This hybrid architecture benefits from narrow-linewidth molecular emitters, site-resolved optical access, engineered coupled-resonator bands, and compatibility with established molecular frequency-tuning techniques. As a proof-of-principle demonstration, we observe emitter-photon bound states formed when the optical transition of a single molecule is tuned to the band gap of a Su-Schrieffer-Heeger (SSH) cavity lattice. These in-gap states display directional localization and photon emission on a single sublattice, inherited from the vacancy-induced topological edge modes of the underlying SSH lattice. Our results establish open-cavity lattices coupled to DBT molecules as a versatile architecture for engineering many-emitter quantum optical systems with controllable photon-mediated interactions.

Related papers

• Molecular Electron Transfer in Optical Cavities: From Excitonic to Vibronic Polaritons [0.0]
  We study electron transfer dynamics in cavity-coupled molecules using the numerically exact hierarchical equations of motion (HEOM) method.<n>We identify distinct resonance and collective effects associated with polariton formation and show that the ET rate saturates in the strong-coupling regime.<n>These findings establish cavity-modified electron transfer as a multichannel quantum process governed by the interplay of electronic, vibrational, and photonic degrees of freedom.
  arXiv  Detail & Related papers  (2026-02-27T07:23:18Z)
• Photon-mediated interactions and dynamics of coherently driven quantum emitters in complex photonic environments [41.94295877935867]
  Born-Markov master equations have been extensively employed in the description of quantum optical phenomena.<n>We benchmark this modeling approach for the quantum dynamics of the emitter pair against exact calculations based on a macroscopic field quantization formalism.<n>Our analysis reveals four distinct regimes of laser driving and frequency splitting that lead to markedly different levels of accuracy in the effective model.
  arXiv  Detail & Related papers  (2025-08-01T09:38:07Z)
• Engineering giant transmon molecules as mediators of conditional two-photon gates [44.99833362998488]
  We show how to use an array of non-locally coupled transmon "molecules" to engineer a passive photonic controlled gate for waveguide photons.<n>Our work opens the use of giant atoms as key elements of microwave photonic quantum computing devices.
  arXiv  Detail & Related papers  (2025-07-07T18:03:59Z)
• Band Gap Engineering and Controlling Transport Properties of Single Photons in Periodic and Disordered Jaynes-Cummings Arrays [0.0]
  We study the single photon transport properties in periodic and position-disordered Jaynes-Cummings arrays. In the disordered case, we find that the single photon transmission curves show the disappearance of band formation. The results of this work may find application in the study of quantum many-body effects in the optical domain.
  arXiv  Detail & Related papers  (2024-01-26T22:32:21Z)
• Directional spontaneous emission in photonic crystal slabs [49.1574468325115]
  Spontaneous emission is a fundamental out-of-equilibrium process in which an excited quantum emitter relaxes to the ground state due to quantum fluctuations. One way to modify these photon-mediated interactions is to alter the dipole radiation patterns of the emitter, e.g., by placing photonic crystals near them. Our study delves into the interaction between these directional emission patterns and the aforementioned variables, revealing the untapped potential to fine-tune collective quantum optical phenomena.
  arXiv  Detail & Related papers  (2023-12-04T15:35:41Z)
• Tunable photon-mediated interactions between spin-1 systems [68.8204255655161]
  We show how to harness multi-level emitters with several optical transitions to engineer photon-mediated interactions between effective spin-1 systems. Our results expand the quantum simulation toolbox available in cavity QED and quantum nanophotonic setups.
  arXiv  Detail & Related papers  (2022-06-03T14:52:34Z)
• Heralded spectroscopy reveals exciton-exciton correlations in single colloidal quantum dots [0.8911822441893501]
  We introduce biexciton heralded spectroscopy, enabled by a single-photon avalanche diode array based spectrometer. This allows us to directly observe biexciton-exciton emission cascades and measure the biexciton binding energy of single quantum dots at room temperature. We uncover correlations hitherto masked in ensembles, of the biexciton binding energy with both charge-carrier confinement and fluctuations of the local electrostatic potential.
  arXiv  Detail & Related papers  (2021-08-01T00:41:57Z)
• Qubit-photon bound states in topological waveguides with long-range hoppings [62.997667081978825]
  Quantum emitters interacting with photonic band-gap materials lead to the appearance of qubit-photon bound states. We study the features of the qubit-photon bound states when the emitters couple to the bulk modes in the different phases. We consider the coupling of emitters to the edge modes appearing in the different topological phases.
  arXiv  Detail & Related papers  (2021-05-26T10:57:21Z)
• Rare-Earth Molecular Crystals with Ultra-narrow Optical Linewidths for Photonic Quantum Technologies [0.0]
  We report on europium molecular crystals that exhibit linewidths in the 10s of kHz range, orders of magnitude narrower than other molecular centers. Results illustrate the utility of rare-earth molecular crystals as a new platform for photonic quantum technologies.
  arXiv  Detail & Related papers  (2021-05-14T22:19:59Z)
• Waveguide quantum electrodynamics: collective radiance and photon-photon correlations [151.77380156599398]
  Quantum electrodynamics deals with the interaction of photons propagating in a waveguide with localized quantum emitters. We focus on guided photons and ordered arrays, leading to super- and sub-radiant states, bound photon states and quantum correlations with promising quantum information applications.
  arXiv  Detail & Related papers  (2021-03-11T17:49:52Z)
• Coupling of Light and Mechanics in a Photonic Crystal Waveguide [0.0]
  Thermally driven transverse vibration of a photonic crystal waveguide (PCW) is observed. Long term goals are to achieve strong atom-mediated links between individual phonons of vibration and single photons propagating in the guided mode of the PCW.
  arXiv  Detail & Related papers  (2020-07-25T10:06:57Z)
• 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)
• Quantum interface between light and a one-dimensional atomic system [58.720142291102135]
  We investigate optimal conditions for the quantum interface between a signal photon pulse and one-dimensional chain consisting of a varied number of atoms. The efficiency of interaction is mainly limited by achieved overlap and coupling of the waveguide evanescent field with the trapped atoms.
  arXiv  Detail & Related papers  (2020-04-11T11:43:54Z)

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.