Ultraviolet superradiance from mega-networks of tryptophan in biological architectures

• URL: http://arxiv.org/abs/2302.01469v1
• Date: Fri, 3 Feb 2023 00:03:59 GMT
• Title: Ultraviolet superradiance from mega-networks of tryptophan in biological architectures
• Authors: N. S. Babcock, G. Montes-Cabrera, K. E. Oberhofer, M. Chergui, G. L. Celardo, P. Kurian
• Abstract summary: We analyze the cooperative effects induced by ultraviolet excitation of several biologically relevant tryptophan mega-networks. Our theoretical analysis in the single-excitation manifold predicts the formation of strongly superradiant states. We demonstrate the observed consequences of this superradiant behavior in the fluorescence quantum yield for hierarchically organized tubulin structures.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Networks of tryptophan -- an aromatic amino acid with strong fluorescent response -- are ubiquitous in biological systems, forming diverse architectures in transmembrane proteins, cytoskeletal filaments, sub-neuronal elements, photoreceptor complexes, virion capsids, and other cellular structures. We analyze the cooperative effects induced by ultraviolet (UV) excitation of several biologically relevant tryptophan mega-networks, thus giving insight into novel mechanisms for cellular signalling and control. Our theoretical analysis in the single-excitation manifold predicts the formation of strongly superradiant states due to collective interactions among organized arrangements of up to more than $10^5$ tryptophan UV-excited transition dipoles in microtubule architectures, which leads to an enhancement of the fluorescence quantum yield that is confirmed by our experiments. We demonstrate the observed consequences of this superradiant behavior in the fluorescence quantum yield for hierarchically organized tubulin structures, which increases in different geometric regimes at thermal equilibrium before saturation -- highlighting the effect's persistence in the presence of disorder.

Related papers

• Cooperative Effects in Thin Dielectric Layers: Long-Range Dicke Superradiance [0.0]
  Quantum photonic platforms provide opportunities to explore new regimes of light-matter interaction beyond the scope of atomic systems. We show that guided optical modes of a thin dielectric layer mediate extended-range interactions between quantum emitters. This work uncovers a distinctive interplay between environmental dimensionality and collective quantum dynamics, paving the way for exploring novel many-body quantum optical phenomena in engineered photonic environments.
  arXiv  Detail & Related papers  (2025-01-24T20:45:44Z)
• Electron-Electron Interactions in Device Simulation via Non-equilibrium Green's Functions and the GW Approximation [71.63026504030766]
  electron-electron (e-e) interactions must be explicitly incorporated in quantum transport simulation. This study is the first one reporting large-scale atomistic quantum transport simulations of nano-devices under non-equilibrium conditions.
  arXiv  Detail & Related papers  (2024-12-17T15:05:33Z)
• Quantum-hydrodynamic modal perspective on plasmonic gap structures [7.6897267177024595]
  Plasmonic gap structures are among the few configurations capable of generating extreme light confinement. Their plasmonic response undergoes a dramatic, quantum effect-driven transition as the gap size approaches zero. Here, we offer a fresh modal perspective on the transition of the plasmonic response using quantum hydrodynamic theory (QHT)-based quasinormal mode (QNM) analysis.
  arXiv  Detail & Related papers  (2024-12-06T06:26:29Z)
• Superradiance of strongly interacting dipolar excitons in moiré quantum materials [0.08192907805418582]
  We study the cooperative radiance of moir'e excitons that is demonstrated to emerge from the deep subwavelength nature of the moir'e lattice. Our results show that interlayer moir'e excitons offer a unique platform for exploring cooperative optical phenomena in strongly interacting many-body systems.
  arXiv  Detail & Related papers  (2024-10-11T15:08:58Z)
• Quantum-enhanced photoprotection in neuroprotein architectures emerges from collective light-matter interactions [0.0]
  We study the collective quantum optical effect of superradiance in neuroprotein architectures. We predict bright superradiant states will also emerge in simulated actin filament bundles and amyloid fibrils.
  arXiv  Detail & Related papers  (2024-05-09T21:38:19Z)
• Multi-level Purcell effect and the impact of vibrational modes in molecular quantum optics [62.997667081978825]
  We study a manifestation of the Purcell effect in a bio-inspired photosynthetic dimer. We provide a theoretical picture in terms of an effective non-Hermitian Hamiltonian.
  arXiv  Detail & Related papers  (2023-06-15T18:27:40Z)
• Driving Force and Nonequilibrium Vibronic Dynamics in Charge Separation of Strongly Bound Electron-Hole Pairs [59.94347858883343]
  We study the dynamics of charge separation in one, two and three-dimensional donor-acceptor networks. This allows us to identify the precise conditions in which underdamped vibrational motion induces efficient long-range charge separation.
  arXiv  Detail & Related papers  (2022-05-11T17:51:21Z)
• Electromagnetically induced transparency in inhomogeneously broadened divacancy defect ensembles in SiC [52.74159341260462]
  Electromagnetically induced transparency (EIT) is a phenomenon that can provide strong and robust interfacing between optical signals and quantum coherence of electronic spins. We show that EIT can be established with high visibility also in this material platform upon careful design of the measurement geometry. Our work provides an understanding of EIT in multi-level systems with significant inhomogeneities, and our considerations are valid for a wide array of defects in semiconductors.
  arXiv  Detail & Related papers  (2022-03-18T11:22:09Z)
• TOF-SIMS Analysis of Decoherence Sources in Nb Superconducting Resonators [48.7576911714538]
  Superconducting qubits have emerged as a potentially foundational platform technology. Material quality and interfacial structures continue to curb device performance. Two-level system defects in the thin film and adjacent regions introduce noise and dissipate electromagnetic energy.
  arXiv  Detail & Related papers  (2021-08-30T22:22:47Z)
• Subdiffusion via Disordered Quantum Walks [52.77024349608834]
  We experimentally prove the feasibility of disordered quantum walks to realize a quantum simulator that is able to model general subdiffusive phenomena. Our experiment simulates such phenomena by means of a finely controlled insertion of various levels of disorder during the evolution of the walker. This allows us to explore the full range of subdiffusive behaviors, ranging from anomalous Anderson localization to normal diffusion.
  arXiv  Detail & Related papers  (2020-07-24T13:56:09Z)
• Plasmonic Purcell Effect in Organic Molecules [0.0]
  We investigate the Purcell effect experienced by an organic molecule placed in the vicinity of a plasmonic nanostructure. Our theoretical approach allows for a realistic description of the continua of both molecular vibrations and optical nanocavity modes. By disentangling the molecule coupling to radiative and non-radiative plasmonic modes, we also shed light into the quenching phenomenology taking place in the system.
  arXiv  Detail & Related papers  (2020-05-12T10:07:26Z)

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.