Phonon-induced modification of polaritonic Rabi oscillations in the presence of the dark excitonic condensate

• URL: http://arxiv.org/abs/2408.13882v2
• Date: Wed, 13 Nov 2024 16:07:43 GMT
• Title: Phonon-induced modification of polaritonic Rabi oscillations in the presence of the dark excitonic condensate
• Authors: Adham Alkady, Victor Fleurov, Anatoly Kuklov,
• Abstract summary: We propose a method for detecting a dark excitonic condensate. It relies on the interaction between excitons and phonons responsible for the interconversion between bright and dark excitons.
• Score: 0.0
• License:
• Abstract: Optically inactive (dark) intervalley momentum-forbidden excitons are characterized by relatively long life time, and therefore are desirable candidates for realizing collective excitonic phases. However, testing their coherence by light directly is impossible. Here we propose a method for detecting a dark excitonic condensate. It relies on the interaction between excitons and phonons responsible for the interconversion between bright and dark excitons. As long as the dark condensate forms, the Rabi oscillations between photons and bright excitons can become strongly modified, and can be viewed as the photon-exciton-phonon polaritonic effect. The multi-component nature of the dark condensate consistent with the point-group symmetry is taken into account in the limit of weak phonon-exciton interaction. A perspective for the case of the strong interaction leading to the polaronic effect is discussed.

Related papers

• 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)
• 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)
• Bosonic Delocalization of Dipolar Moir\'e Excitons [0.0]
  tunable moir'e potentials emerge, trapping excitons into periodic arrays. Recent experiments have demonstrated density-dependent transport properties of moir'e excitons. We develop a microscopic theory of interacting excitons in external potentials.
  arXiv  Detail & Related papers  (2023-06-01T09:06:33Z)
• Quantum vortices of strongly interacting photons [52.131490211964014]
  Vortices are hallmark of nontrivial dynamics in nonlinear physics. We report on the realization of quantum vortices resulting from a strong photon-photon interaction in a quantum nonlinear optical medium. For three photons, the formation of vortex lines and a central vortex ring attests to a genuine three-photon interaction.
  arXiv  Detail & Related papers  (2023-02-12T18:11:04Z)
• From hybrid polariton to dipolariton using non-hermitian Hamiltonians to handle particle lifetimes [0.0]
  We show how under a field increase, the hybrid polariton made of photon coupled to hybrid carriers transforms into a dipolariton made of photon coupled to direct and indirect excitons. While the hybrid polaritons display a spectral singularity, where the eigenvalues coalesce and known as exceptional point, that depends on detuning and lifetimes, we find that the three dipolaritonic states display an anti-crossing without exceptional point.
  arXiv  Detail & Related papers  (2021-12-16T10:58:47Z)
• Photon-mediated interactions near a Dirac photonic crystal slab [68.8204255655161]
  We develop a theory of dipole radiation near photonic Dirac points in realistic structures. We find positions where the nature of the collective interactions change from being coherent to dissipative ones. Our results significantly improve the knowledge of Dirac light-matter interfaces.
  arXiv  Detail & Related papers  (2021-07-01T14:21:49Z)
• Multimode-polariton superradiance via Floquet engineering [55.41644538483948]
  We consider an ensemble of ultracold bosonic atoms within a near-planar cavity, driven by a far detuned laser. We show that a strong, dispersive atom-photon coupling can be reached for many transverse cavity modes at once. The resulting Floquet polaritons involve a superposition of a set of cavity modes with a density of excitation of the atomic cloud.
  arXiv  Detail & Related papers  (2020-11-24T19:00:04Z)
• Demonstration of dipolar-induced enhancement of parametric effects in polariton waveguides [40.96261204117952]
  Exciton-polaritons are hybrid light-matter excitations arising from the non-fluidative coupling of a photonic mode and an excitonic resonance. We show that dipolar interactions can be used to enhance parametric effects such as self-phase modulation in waveguide polaritons.
  arXiv  Detail & Related papers  (2020-05-22T20:45:31Z)
• Optically pumped spin polarization as a probe of many-body thermalization [50.591267188664666]
  We study the spin diffusion dynamics of 13C in diamond, which we dynamically polarize at room temperature via optical spin pumping of engineered color centers. We find good thermal contact throughout the nuclear spin bath, virtually independent of the hyperfine coupling strength. Our results open intriguing opportunities to study the onset of thermalization in a system by controlling the internal interactions within the bath.
  arXiv  Detail & Related papers  (2020-05-01T23:16:33Z)
• Parallel dark soliton pair in a bistable 2D exciton-polariton superfluid [47.187609203210705]
  2D dark solitons are unstable and collapse into vortices due to snake instabilities. We demonstrate that a pair of dark solitons can be formed in the wake of an obstacle in a polariton flow resonantly supported by a homogeneous laser beam.
  arXiv  Detail & Related papers  (2020-03-25T13:52:22Z)
• Mediated interactions and photon bound states in an exciton-polariton mixture [0.0]
  We explore mediated photon-photon interactions in a highly imbalanced two-component mixture of exciton-polaritons in a semiconductor microcavity. Using a theory that takes into account non-perturbative correlations between the excitons as well as strong light-matter coupling, we demonstrate the high tunability of an effective interaction. Our findings open up new routes for realising highly non-linear optical materials and novel hybrid light-matter quantum systems.
  arXiv  Detail & Related papers  (2020-03-10T12:13:49Z)

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.