Theoretical Analysis of Exciton Wave Packet Dynamics in Polaritonic
Wires
- URL: http://arxiv.org/abs/2304.11453v2
- Date: Thu, 27 Apr 2023 20:09:40 GMT
- Title: Theoretical Analysis of Exciton Wave Packet Dynamics in Polaritonic
Wires
- Authors: Gustavo J. R. Aroeira, Kyle Kairys, Raphael F. Ribeiro
- Abstract summary: We present a comprehensive study of exciton wave packet evolution in disordered polaritonic wires.
Our simulations reveal signatures of ballistic, diffusive, and subdiffusive exciton dynamics under strong light-matter coupling.
We discuss the implications of our investigations to the development of theoretical models.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We present a comprehensive study of exciton wave packet evolution in
disordered lossless polaritonic wires. Our simulations reveal signatures of
ballistic, diffusive, and subdiffusive exciton dynamics under strong
light-matter coupling and identify the typical timescales associated with the
transitions between these qualitatively distinct transport phenomena. We
determine optimal truncations of the molecular subsystem and radiation field
required for generating reliable time-dependent data from computational
simulations at affordable cost. The time evolution of the photonic part of the
wave function reveals that many cavity modes contribute to the dynamics in a
non-trivial fashion. Hence, a sizable number of photon modes is needed to
describe exciton propagation with reasonable accuracy. We find and discuss an
intriguingly common lack of dominance of the photon mode on resonance with the
molecular system both in the presence and absence of disorder. We discuss the
implications of our investigations to the development of theoretical models and
analysis of experiments where coherent intermolecular energy transport and
static disorder play an important role.
Related papers
- Simulating anharmonic vibrational polaritons beyond the long wavelength approximation [0.0]
We investigate anharmonic vibrational polaritons formed due to strong light-matter interactions in an optical cavity.
We employ self-consistent phonon theory and vibrational dynamical mean-field theory to efficiently simulate momentum-resolved vibrational-polariton spectra.
arXiv Detail & Related papers (2024-09-12T12:36:06Z) - Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling [83.88591755871734]
We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide.
When the frequency of this motion approaches twice the qubit resonance frequency, it induces parametric generation of photons and excitation of the qubits.
We develop a comprehensive general theoretical framework that incorporates both perturbative diagrammatic techniques and a rigorous master-equation approach.
arXiv Detail & Related papers (2024-08-30T15:54:33Z) - Dynamics of a Generalized Dicke Model for Spin-1 Atoms [0.0]
The Dicke model is a staple of theoretical cavity Quantum Electrodynamics (cavity QED)
It demonstrates a rich variety of dynamics such as phase transitions, phase multistability, and chaos.
The varied and complex behaviours admitted by the model highlights the need to more rigorously map its dynamics.
arXiv Detail & Related papers (2024-03-04T04:09:35Z) - Quench dynamics in higher-dimensional Holstein models: Insights from Truncated Wigner Approaches [41.94295877935867]
We study the melting of charge-density waves in a Holstein model after a sudden switch-on of the electronic hopping.
A comparison with exact data obtained for a Holstein chain shows that a semiclassical treatment of both the electrons and phonons is required in order to correctly describe the phononic dynamics.
arXiv Detail & Related papers (2023-12-19T16:14:01Z) - Super- and subradiant dynamics of quantum emitters mediated by atomic
matter waves [0.0]
We explore cooperative dynamics of quantum emitters in an optical lattice that interact by radiating atomic matter waves.
We demonstrate directional super- and subradiance from a superfluid phase with tunable radiative phase lags.
We observe a coupling to collective bound states with radiation trapped at and between the emitters.
arXiv Detail & Related papers (2023-11-16T00:37:06Z) - 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) - Quantum dynamics simulation of intramolecular singlet fission in
covalently linked tetracene dimer [0.0]
We study singlet fission in tetracene para-dimers, covalently linked by a phenyl group.
In contrast to most previous works, we account for the full quantum dynamics of the combined excitonic and vibrational system.
arXiv Detail & Related papers (2021-07-29T13:15:24Z) - Visualizing spinon Fermi surfaces with time-dependent spectroscopy [62.997667081978825]
We propose applying time-dependent photo-emission spectroscopy, an established tool in solid state systems, in cold atom quantum simulators.
We show in exact diagonalization simulations of the one-dimensional $t-J$ model that the spinons start to populate previously unoccupied states in an effective band structure.
The dependence of the spectral function on the time after the pump pulse reveals collective interactions among spinons.
arXiv Detail & Related papers (2021-05-27T18:00:02Z) - 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) - 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)
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.