Dynamical spectra from one and two-photon Fock state pulses exciting a single chiral qubit in a waveguide
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , |
|---|---|
| Format: | Preprint |
| Publié: |
2024
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866917795301687296 |
|---|---|
| author | Regidor, Sofia Arranz Knorr, Andreas Hughes, Stephen |
| author_facet | Regidor, Sofia Arranz Knorr, Andreas Hughes, Stephen |
| contents | We study the dynamical light emission from few-photon Fock states in waveguide-QED with a chiral two-level system. We first investigate the time dynamics of the system by calculating the emitter population and illustrate the breakdown of the weak excitation approximation, for both 1-photon and 2-photon excitation. We show how a 1-photon pulse yields a transmitted long-time spectrum that is identical to the input pulse, despite significant population effects. However, the dynamical spectra and spectral intensity show rich population effects. We also show the differences between 1-photon and 2-photon excitation, where the latter shows clear signatures of nonlinear saturation effects. Analytical and numerically exact matrix product state solutions are shown. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_03715 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Dynamical spectra from one and two-photon Fock state pulses exciting a single chiral qubit in a waveguide Regidor, Sofia Arranz Knorr, Andreas Hughes, Stephen Quantum Physics We study the dynamical light emission from few-photon Fock states in waveguide-QED with a chiral two-level system. We first investigate the time dynamics of the system by calculating the emitter population and illustrate the breakdown of the weak excitation approximation, for both 1-photon and 2-photon excitation. We show how a 1-photon pulse yields a transmitted long-time spectrum that is identical to the input pulse, despite significant population effects. However, the dynamical spectra and spectral intensity show rich population effects. We also show the differences between 1-photon and 2-photon excitation, where the latter shows clear signatures of nonlinear saturation effects. Analytical and numerically exact matrix product state solutions are shown. |
| title | Dynamical spectra from one and two-photon Fock state pulses exciting a single chiral qubit in a waveguide |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2410.03715 |