Coherent Spin Preparation of Indium Donor Qubits in Single ZnO Nanowires
- URL: http://arxiv.org/abs/2110.13879v1
- Date: Tue, 26 Oct 2021 17:37:41 GMT
- Title: Coherent Spin Preparation of Indium Donor Qubits in Single ZnO Nanowires
- Authors: Maria L. K. Viitaniemi (1), Christian Zimmermann (1), Vasileios
Niaouris (1), Samuel H. D'Ambrosia (1), Xingyi Wang (2), E. Senthil Kumar
(3), Faezeh Mohammadbeigi (3), Simon P. Watkins (3), Kai-Mei C. Fu (1 and 2)
((1) Department of Physics, University of Washington, Seattle, USA, (2)
Department of Electrical Engineering, University of Washington, Seattle, USA,
(3) Department of Physics, Simon Fraser University, Burnaby, Canada)
- Abstract summary: We show that donor-bound exciton optical and electron spin properties are retained in isolated donorO nanowires.
The two-photon width approaches the theoretical limit expected due to the hyperfine interaction between the indium nuclear spin and the donor-bound electron.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Shallow donors in ZnO are promising candidates for photon-mediated quantum
technologies. Utilizing the indium donor, we show that favorable donor-bound
exciton optical and electron spin properties are retained in isolated ZnO
nanowires. The inhomogeneous optical linewidth of single nanowires (60 GHz) is
within a factor of 2 of bulk single-crystalline ZnO. Spin initialization via
optical pumping is demonstrated and coherent population trapping is observed.
The two-photon absorption width approaches the theoretical limit expected due
to the hyperfine interaction between the indium nuclear spin and the
donor-bound electron.
Related papers
- Quantum Emitters in Aluminum Nitride Induced by Zirconium Ion
Implantation [70.64959705888512]
This study investigates aluminum nitride (AlN) as a material with properties highly suitable for integrated on-chip photonics.
We conduct a comprehensive study of the creation and photophysical properties of single-photon emitters in AlN utilizing Zirconium (Zr) and Krypton (Kr) heavy ion implantation.
With the 532 nm excitation wavelength, we found that single-photon emitters induced by ion implantation are primarily associated with vacancy-type defects in the AlN lattice for both Zr and Kr ions.
arXiv Detail & Related papers (2024-01-26T03:50:33Z) - Isolation of Single Donors in ZnO [0.5500796511783379]
The shallow donor in zinc oxide (ZnO) is a promising semiconductor spin qubit with optical access.
Single indium donors are isolated in a commercialO substrate using plasma focused ion beam (PFIB) milling.
arXiv Detail & Related papers (2023-10-09T15:44:10Z) - On-chip indistinguishable photons using III-V nanowire/SiN hybrid
integration [0.0]
We demonstrate on-chip generation of indistinguishable photons based on a nanowire quantum dot.
The quantum dot emission is Coupling of the quantum dot emission to the SiN waveguide is via the evanescent mode in the tapered nanowire.
The role of excitation timing jitter, spectral diffusion and pure dephasing in limiting visibilities over the temporal extent of the photon is investigated.
arXiv Detail & Related papers (2023-08-20T09:51:53Z) - Contributions to the optical linewidth of shallow donor-bound excitonic
transition in ZnO [0.5737716951558811]
Neutral shallow donors in zinc oxide (ZnO) are spin qubits with optical access via the donor-bound exciton.
We study the donor-bound exciton optical linewidth properties of Al, Ga, and In donors in single-crystalO.
arXiv Detail & Related papers (2023-07-24T07:21:35Z) - Room Temperature Fiber-Coupled single-photon devices based on Colloidal
Quantum Dots and SiV centers in Back Excited Nanoantennas [91.6474995587871]
Directionality is achieved with a hybrid metal-dielectric bullseye antenna.
Back-excitation is permitted by placement of the emitter at or in a sub-wavelength hole positioned at the bullseye center.
arXiv Detail & Related papers (2023-03-19T14:54:56Z) - Correlations between cascaded photons from spatially localized
biexcitons in ZnSe [55.41644538483948]
We demonstrate a radiative cascade from the decay of a biexciton at an impurity-atom complex in aSe quantum well.
Our result establishes impurity atoms inSe as a potential platform for photonic quantum technologies using radiative cascades.
arXiv Detail & Related papers (2022-03-11T23:15:37Z) - Single quantum emitters with spin ground states based on Cl bound
excitons in ZnSe [55.41644538483948]
We show a new type of single photon emitter with potential electron spin qubit based on Cl impurities inSe.
Results suggest single Cl impurities are suitable as single photon source with potential photonic interface.
arXiv Detail & Related papers (2022-03-11T04:29:21Z) - Resonantly pumped bright-triplet exciton lasing in caesium lead bromide
perovskites [0.0]
We showcase a resonant optical pumping scheme on a fast triplet-state in CsPbBr3 nanocrystals.
The scheme allows us to realize a polarized triplet-laser source that dramatically enhances the coherent signal by one order of magnitude.
The emission is generated by pumping selectively on a weakly-confined excitonic state with a Bohr radius 10 nm in the nanocrystals.
arXiv Detail & Related papers (2021-07-14T16:08:33Z) - Phonon dephasing and spectral diffusion of quantum emitters in hexagonal
Boron Nitride [52.915502553459724]
Quantum emitters in hexagonal boron nitride (hBN) are emerging as bright and robust sources of single photons for applications in quantum optics.
We study phonon dephasing and spectral diffusion of quantum emitters in hBN via resonant excitation spectroscopy at cryogenic temperatures.
arXiv Detail & Related papers (2021-05-25T05:56:18Z) - Directional emission of down-converted photons from a dielectric
nano-resonator [55.41644538483948]
We theoretically describe the generation of photon pairs in the process of spontaneous parametric down-conversion.
We reveal that highly directional photon-pair generation can be observed utilising the nonlinear Kerker-type effect.
arXiv Detail & Related papers (2020-11-16T10:30:04Z)
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.